Silver Spring, MD — Planting Guide for July
Free PDF, personalized for your town's frost dates & climate. Drop your email — we'll send the link.
July in Montgomery County, Maryland — your action list
Your garden in Montgomery County, Maryland is working on a schedule, even when you're not. Here's where you should be this July.
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Collect basil, carrots, and cucumber at their peak
Morning harvests are best — cooler temperatures mean crisper produce and longer fridge life.
August prep starts now
- First harvests: basil, cucumber, and green beans
- Fall sowing: carrots, kale, and lettuce
Silver Spring gardens in a wet, humid climate (45" annually). Cool-season crops like peas, lettuce, kale, and brassicas thrive in spring and fall. The biggest challenges are fungal disease and humidity-loving pests in summer — leaf spot, blight, squash bugs, vine borers. Drip irrigation (not overhead), wide plant spacing for air circulation, and disease-resistant varieties make the difference.
Soils trend Silt Loam — the gold standard for vegetables. Add 2–3" of compost annually to maintain it and you'll outgrow most of your neighbors.
Drought pressure is moderate (15.6 weeks/year on average). Mulching and drip irrigation pay for themselves quickly.
🌡️ USDA Zone
7b (5°F to 10°F min)
❄️ Avg. Last Frost
April 16
🍂 Avg. First Frost
October 20
📅 Growing Season
187 days
🌧️ Climate
Humid 45.4" annual
💨 Wind
Moderate 8.4 mph avg
🥶 Frost Tier
Regular 0% frost-free years
🏜️ Drought
15.6 wk/yr trend stable
📍 ZIP Codes
16 ZIPs
Monthly Watering Calendar for Silver Spring
When you'll need to water your garden — based on average monthly rainfall vs. the ~1 inch/week most gardens need.
The practical takeaway: The 1-inch-per-week rule applies to most vegetable crops. Silver Spring averages 45" a year — divide by 52 and compare to that 1" target. Some months are above, some below; that's where the calendar earns its keep.
View detailed monthly data
| Month | Avg Rainfall | Rainy Days | Extra Water Needed | Watering Effort |
|---|---|---|---|---|
| Jan | 2.7 in | 10 days | — | None |
| Feb | 2.9 in | 10 days | — | None |
| Mar | 3.4 in | 10 days | 0.9 in | Moderate |
| Apr | 3.9 in | 9 days | 0.4 in | Low |
| May | 3.9 in | 13 days | 0.4 in | Low |
| Jun | 3.7 in | 9 days | 0.6 in | Moderate |
| Jul | 3.9 in | 9 days | 0.4 in | Low |
| Aug | 3.7 in | 10 days | 0.6 in | Moderate |
| Sep | 3.9 in | 10 days | 0.4 in | Low |
| Oct | 3.2 in | 9 days | 1.1 in | Moderate |
| Nov | 3.6 in | 11 days | — | None |
| Dec | 2.9 in | 11 days | — | None |
Annual total: 41.7 in. Water needs vary by crop — tomatoes need ~1.2"/week while herbs like rosemary need only 0.3"/week. Check individual plant pages for crop-specific water budgets that factor in your county's rainfall and soil drainage.
Silver Spring Soil Profile
Soil Type
Silt Loam
Soil pH
5.4-6.7
Drainage
Well Drained
Frost Risk Probability
Based on 31 years of NOAA weather station data from 3 stations
Beginners: Plant frost-sensitive crops (tomatoes, peppers, squash) after the "Safe" date on the left. Harvest or cover them before the "Protect by" date on the right. Hardy crops (lettuce, peas, kale) can go in the yellow transition zones.
How to read this table: "Conservative" means you're safe from frost 9 out of 10 years — best for beginners and frost-sensitive crops. "Average year" is the typical date. "Aggressive" means only 1 in 10 years is that warm — experienced gardeners with frost protection can try these dates.
| Planting Strategy | Last Spring Frost | First Fall Frost | Frost-Free Days |
|---|---|---|---|
| Conservative (safest) | May 10 | Nov 2 | 176 days |
| Cautious | Apr 24 | Oct 27 | 186 days |
| Average year | Apr 16 | Oct 20 | 187 days |
| Optimistic | Apr 12 | Oct 17 | 188 days |
| Aggressive (risky) | Apr 2 | Oct 9 | 190 days |
Not very — frost dates can vary by ±38 days year-to-year. Use the "Conservative" row in the table below, and keep row covers handy for surprise late frosts.
Yes — growing seasons are getting longer here (about 2.4 days per decade). Spring is arriving earlier than it used to. Good news for gardeners.
Gardening Difficulty Score
Montgomery County presents some gardening challenges. Choose adapted varieties and plan around frost dates.
Local Gardening Help in Montgomery County
Free expert help is closer than you think. Your county's cooperative extension office connects you with trained gardeners, soil testing labs, and local programs — all specific to Montgomery County's climate and soil.
County Extension Office
Montgomery County University of Maryland Extension Extension Office
Phone: 301-405-2072
Visit Extension Office Website →
Extension offices are run by land-grant universities and funded by the USDA. Their advice is free, research-based, and tailored to your county's specific conditions.
Master Gardener Program
Free gardening help from trained volunteers
Master Gardeners are community volunteers who complete 40–60 hours of university horticultural training. They answer gardening questions, diagnose plant problems, and offer workshops — all free.
Many extension offices run a Master Gardener hotline where you can call or email with photos of plant problems for free diagnosis.
Soil Testing
Available through your extension office
Before amending your soil, get it tested. Your extension office offers soil testing (typically $10–$25) that tells you exact pH, nutrient levels, and amendment recommendations specific to what you want to grow.
Services Available in Montgomery County
Finding local nurseries & garden centers in Montgomery County
Why Buy Local
Local nurseries carry plants that are proven to grow in your area. Staff can give you advice specific to Montgomery County's soil and climate that big-box stores can't. Plants from local growers are typically hardier because they're already acclimated to your zone.
How to Find Them
Search for "nurseries near Montgomery County MD" or "garden center Montgomery County" on Google Maps. Also check with your extension office — they often maintain lists of reputable local nurseries and plant sales.
Community gardens & gardening groups
Community gardens are a great way to learn from experienced gardeners in your area, especially if you're limited on space. Search "community garden Montgomery County MD" or check your extension office and local parks department. Facebook groups like "Montgomery County Gardeners" or "Maryland Gardening" are also excellent for local advice and plant swaps.
What to Plant After Your Harvest
After your first crops finish, use the remaining frost-free days to grow a second round.
Show 6 more succession options
Sunlight & Day Length in Silver Spring
Monthly daylight hours and peak sun — critical for onion varieties, photoperiod-sensitive plants, and solar garden planning.
Quick context: Onion varieties are sold by "short-day," "intermediate-day," and "long-day." Silver Spring's latitude determines which to buy — and getting it wrong is the difference between baseball-sized bulbs and marbles.
Longest Day
14.7 hours
Summer solstice daylight
Shortest Day
9.3 hours
Winter solstice daylight
Peak Sun Hours
8.7 hr/day peak (summer)
Peak sun hours (green dashed line below) account for cloud cover — this is the usable direct sunlight your garden actually receives. Most vegetables need 6+ peak sun hours.
Onion tip: Your long summer days (14+ hours) support long-day onion varieties like Walla Walla, Sweet Spanish, and Ailsa Craig.
View detailed monthly data
| Month | Daylight Hours | Peak Sun Hours | Day Length |
|---|---|---|---|
| January | 9.5 hr | 3.5 hr | Short day |
| February | 10.5 hr | 4.3 hr | Short day |
| March | 11.7 hr | 5.4 hr | Short day |
| April | 13 hr | 6.3 hr | Neutral |
| May | 14.1 hr | 7.3 hr | Long day |
| June | 14.7 hr | 7.9 hr | Long day |
| July | 14.5 hr | 8.7 hr | Long day |
| August | 13.5 hr | 7.1 hr | Neutral |
| September | 12.2 hr | 6.4 hr | Neutral |
| October | 10.9 hr | 5.5 hr | Short day |
| November | 9.8 hr | 3.7 hr | Short day |
| December | 9.3 hr | 3.1 hr | Short day |
Peak sun hours factor in typical cloud cover — use these for solar panel and shade-planning calculations.
Soil Temperature & Composting in Silver Spring
Monthly soil temps tell you when to plant warm-season crops, and when your compost pile is actively working.
Why it matters: Air temperature lies. Your air can be 70°F in April but the soil 4 inches down is still 50°F — too cold for tomatoes or peppers to root properly. Silver Spring's soil temperature curve tells you the real planting window. A $5 soil thermometer pays for itself in one season.
Plant Warm Crops When
Soil reaches 60°F+
Soil warm enough from May through Oct.
Best Month to Compost
May
Microbial activity peaks when soil is warm.
Active Composting
8 months
Nearly year-round composting.
View detailed monthly data
| Month | Soil 4" Deep | Soil 8" Deep | Compost Activity | Time to Finish |
|---|---|---|---|---|
| Jan | 37°F | 45°F | ❄️ Dormant | ~36 weeks |
| Feb | 39°F | 45°F | ❄️ Dormant | ~36 weeks |
| Mar | 46°F | 48°F | 🐢 Slow | ~24 weeks |
| Apr | 58°F | 55°F | ♻️ Active | ~14 weeks |
| May | 68°F | 66°F | 🔥 Peak | ~8 weeks |
| Jun | 77°F | 72°F | 🔥 Peak | ~8 weeks |
| Jul | 84°F | 79°F | 🔥 Peak | ~8 weeks |
| Aug | 86°F | 82°F | 🔥 Peak | ~8 weeks |
| Sep | 82°F | 80°F | 🔥 Peak | ~8 weeks |
| Oct | 68°F | 71°F | 🔥 Peak | ~8 weeks |
| Nov | 57°F | 62°F | ♻️ Active | ~14 weeks |
| Dec | 43°F | 51°F | 🐢 Slow | ~24 weeks |
Highlighted rows = soil 60°F+ (safe for warm-season transplants). Compost finishes fastest during peak activity months.
Pest & Disease Pressure in Silver Spring
Computed from local climate patterns — warmer, humid conditions increase pest generations and fungal disease risk.
For new gardeners: Pest and disease pressure is the X-factor most beginners under-plan for. Silver Spring's climate determines whether you can mostly "plant and see" or whether you need a pest-management routine from the first seedling.
Insect Pest Pressure
Moderate — common pests appear but manageable with monitoring.
Disease Risk
High fungal/bacterial risk. Space plants for airflow, water at soil level.
Seasonal Risk
View 6 common pests in your area
| Pest | Risk Level | Peak Months |
|---|---|---|
| Aphids | High | Mar, Apr, May, Jun, Jul, Aug, Sep, Oct |
| Japanese beetles | Moderate | Jun, Jul, Aug |
| Squash vine borers | Moderate | May, Jun, Jul |
| Stink bugs | Moderate | May, Jun, Jul, Aug, Sep |
| Whiteflies | Moderate | Jun, Jul, Aug, Sep |
| Spider mites | Moderate | Jul, Aug |
Organic pest management tips
- Use row covers on susceptible crops during peak pest months
- Apply neem oil preventatively every 7-14 days during active pest season
- Interplant with strong-scented herbs (basil, marigold) to confuse pests
- Hand-pick larger pests (beetles, caterpillars) in early morning when they're sluggish
- Practice crop rotation — never plant the same family in the same spot within 3 years
- Watch for powdery mildew, downy mildew, blight — common in your climate
Cover Crops for Silver Spring
Cover crops protect bare soil, fix nitrogen, suppress weeds, and improve soil structure — with planting dates calibrated for your area.
Why it matters: You don't need a farm to use cover crops. A 4x8 raised bed accepts cover crops just as well as a half-acre. Silver Spring's climate determines the calendar; the principle is universal.
Spring Cover Crops (4 options) — Build soil before the main growing season
| Crop | Plant By | Terminate | N-Fixing | Soil Benefit |
|---|---|---|---|---|
| Buckwheat | Apr 25 | Aug 25 | — | Rapid growth, attracts pollinators, suppresses weeds |
| Cowpeas (southern peas) | Apr 25 | Aug 11 | ✓ Yes | Excellent nitrogen fixer for warm climates, edible |
| Sorghum-sudan grass | Apr 25 | Aug 18 | — | Massive biomass, breaks compaction, suppresses nematodes |
| White clover | Mar 20 | Aug 18 | ✓ Yes | Living mulch, fixes nitrogen, permanent ground cover |
Summer Cover Crops (1 options) — Fill gaps and suppress weeds between plantings
| Crop | Plant By | Terminate | N-Fixing | Soil Benefit |
|---|---|---|---|---|
| Sunflowers | May 6 | Sep 22 | — | Deep roots break compaction, attract pollinators and beneficial insects |
Fall Cover Crops (7 options) — Plant after harvest to protect soil over winter
| Crop | Plant By | Terminate | N-Fixing | Soil Benefit |
|---|---|---|---|---|
| Austrian winter peas | Aug 12 | Apr 2 | ✓ Yes | Fixes nitrogen, good for heavy clay soils |
| Crimson clover | Aug 24 | Mar 26 | ✓ Yes | Fixes nitrogen, attracts pollinators in spring |
| Daikon radish | Sep 7 | Apr 2 | — | Deep taproot breaks compaction, excellent for clay soils |
| Hairy vetch | Aug 6 | Mar 26 | ✓ Yes | Excellent nitrogen fixer, good for depleted soils |
| Oats | Sep 18 | Mar 26 | — | Quick biomass, winterkills in cold zones — no spring tillage needed |
| Winter rye | Jul 12 | Mar 26 | — | Suppresses weeds, prevents erosion, breaks up compacted soil |
| Winter wheat | Jul 12 | Apr 2 | — | Erosion control, weed suppression, good biomass |
Wind & Microclimate in Silver Spring
The practical takeaway: Wind affects three things gardeners forget: how fast soil dries (more wind = more watering), whether pollinators can work (calm beats gusty), and whether your trellised crops stay upright. Silver Spring sees 8.4 mph on average — a forgiving baseline.
Wind dries soil, stresses plants, and affects frost patterns. Understanding your exposure helps with garden placement.
Seasonal Wind Speed
Spring: 14 mph Summer: 11 mph
Fall: 12 mph Winter: 17 mph
Prevailing wind: W. Windy area — plant a windbreak hedge on the W side of your garden.
Windbreak Benefit
7/10
Strongly recommended — a windbreak (fence, hedge, or row of tall crops like corn or sunflowers) will significantly improve garden yields.
Frost Pocket Risk
Low
Relatively flat terrain (165 ft range). Frost pocket risk is minimal — garden placement is flexible.
Rainwater Harvesting in Silver Spring
How much water you can collect, when to collect it, and what size system you need for your garden.
The practical takeaway: Most gardens use 0.5-1 gallon per square foot per week in summer. Silver Spring's 45" annual rainfall is enough to cover most needs if you can capture it. Rain barrels under downspouts are the simplest entry point.
Annual Collection
20,783 gal
Per 1,000 sq ft of roof area (at 80% collection efficiency)
Recommended Setup
6 rain barrels (55 gal each)
For a typical 500 sq ft garden. Serious collectors: consider a 750 gal tank.
Legal Status
Unrestricted
Rainwater harvesting is fully legal in your state with no restrictions.
Best Collection Months
Apr, May, Jul, Sep
Highest rainfall months — your barrels will fill up quickly during these months.
Months to Draw From Storage
Jan, Feb, Dec
Dry months when you'll rely on stored water — size your storage for this gap.
Rainwater collection tips for your area
- Your county receives approximately 41.7 inches of rain per year
- A 1,000 sq ft roof can collect roughly 20,783 gallons annually
- Rainwater harvesting is fully legal in your state
- Stock up on stored water before your dry season (Jan, Feb, Dec)
- Use a first-flush diverter to keep roof debris out of your collection
🥬 Vegetables to Grow in Silver Spring
112 vegetables matched to Zone 7b with planting dates calibrated for Silver Spring.
Show all 112 vegetables with dates
| Plant | Start Indoors | Direct Sow | Transplant | Fall Plant | Harvest | Days to Maturity |
|---|---|---|---|---|---|---|
| Acorn Squash | Mar 19 | Apr 23 | Apr 30 | — | Jul 23 – Aug 27 | 80–100 |
| Amaranth | Feb 26 | Apr 23 | Apr 30 | — | Jul 30 – Sep 17 | 90–120 |
| Artichoke | — | — | Apr 30 | — | Sep 3 – Nov 12 | 120–180 |
| Arugula | Mar 12 | Apr 2 | Apr 16 | Aug 11 | May 21 – Jul 23 | 30–50 |
| Asparagus | — | — | Apr 30 | — | — | 730–1095 |
| Beets | — | Apr 2 | — | Aug 11 | May 28 – Jun 25 | 50–70 |
| Belgian Endive | Mar 12 | Apr 2 | Apr 16 | Aug 11 | Aug 6 – Oct 1 | 110–150 |
| Bitter Melon | Feb 26 | Apr 23 | Apr 30 | — | Jul 2 – Aug 13 | 60–90 |
| Black Beans | — | Apr 23 | — | — | Jul 23 – Sep 10 | 90–120 |
| Bok Choy | Mar 12 | Apr 2 | Apr 16 | Aug 11 | May 28 – Jul 2 | 40–60 |
| Broccoli | Mar 12 | Apr 2 | Apr 16 | Aug 11 | Jun 18 – Jul 30 | 60–90 |
| Broccoli Rabe | Mar 12 | Apr 2 | Apr 16 | Aug 11 | May 28 – Jul 2 | 40–60 |
| Brussels Sprouts | Mar 12 | Apr 2 | Apr 16 | Aug 11 | Jul 16 – Sep 10 | 90–130 |
| Butternut Squash | Mar 19 | Apr 23 | Apr 30 | — | Jul 30 – Sep 3 | 85–110 |
| Cabbage | Mar 12 | Apr 2 | Apr 16 | Aug 11 | Jun 18 – Aug 13 | 60–100 |
| Calabash | Feb 26 | Apr 23 | Apr 30 | — | Jul 23 – Sep 17 | 80–120 |
| Cardoon | — | — | Apr 30 | — | Sep 3 – Oct 15 | 120–150 |
| Carrots | — | Apr 2 | — | Aug 11 | Jun 4 – Jul 9 | 60–80 |
| Cauliflower | Mar 12 | Apr 2 | Apr 16 | Aug 11 | Jun 11 – Aug 13 | 55–100 |
| Celeriac | Mar 12 | Apr 2 | Apr 16 | Aug 11 | Jul 30 – Sep 3 | 100–120 |
| Celery | Mar 12 | Apr 2 | Apr 16 | Aug 11 | Jul 9 – Sep 3 | 80–120 |
| Celtuce | Mar 12 | Apr 2 | Apr 16 | Aug 11 | Jun 18 – Jul 30 | 60–90 |
| Chard | Mar 12 | Apr 2 | Apr 16 | Aug 11 | Jun 11 – Jul 30 | 50–60 |
| Chayote | Feb 26 | Apr 23 | Apr 30 | — | Sep 3 – Nov 12 | 120–180 |
| Chickpeas | Mar 12 | Apr 2 | Apr 16 | Aug 11 | Jul 9 – Aug 20 | 80–110 |
| Chicory | Mar 12 | Apr 2 | Apr 16 | Aug 11 | Jun 18 – Jul 30 | 60–85 |
| Chinese Cabbage | Mar 12 | Apr 2 | Apr 16 | Aug 11 | Jun 11 – Jul 9 | 50–70 |
| Christmas Lima Beans | Feb 26 | Apr 23 | Apr 30 | — | Jul 23 – Aug 27 | 80–100 |
| Collard Greens | Mar 12 | Apr 2 | Apr 16 | Aug 11 | Jun 11 – Aug 13 | 55–75 |
| Corn | — | Apr 23 | — | — | Jun 25 – Aug 20 | 60–100 |
| Cowpeas | — | Apr 23 | — | — | Jun 25 – Aug 6 | 60–90 |
| Cress | Mar 12 | Apr 2 | Apr 16 | Aug 11 | Apr 30 – May 21 | 14–21 |
| Crookneck Squash | Mar 19 | Apr 23 | Apr 30 | — | Jun 18 – Jul 16 | 45–60 |
| Crosne | — | Apr 2 | — | Aug 11 | Sep 3 – Nov 5 | 150–200 |
| Cucumber | Mar 19 | Apr 23 | Apr 30 | — | Jun 25 – Aug 20 | 50–70 |
| Daikon | — | Apr 2 | — | Aug 11 | May 28 – Jun 25 | 50–70 |
| Delicata Squash | Mar 19 | Apr 23 | Apr 30 | — | Jul 23 – Aug 27 | 80–100 |
| Edamame | — | Apr 23 | — | — | Jul 9 – Aug 20 | 75–100 |
| Eggplant | Feb 12 | Apr 23 | Apr 30 | — | Jul 9 – Sep 10 | 65–85 |
| Endive | Mar 12 | Apr 2 | Apr 16 | Aug 11 | Jun 4 – Jul 9 | 45–65 |
| Escarole | Mar 12 | Apr 2 | Apr 16 | Aug 11 | Jun 11 – Jul 9 | 50–70 |
| Fava Beans | Mar 12 | Apr 2 | Apr 16 | Aug 11 | Jul 2 – Aug 13 | 75–100 |
| Fennel | Feb 26 | Apr 23 | Apr 30 | — | Jul 2 – Aug 13 | 60–90 |
| Garlic | — | — | — | Sep 8 | Dec 8 – Apr 20 | 90–240 |
| Green Beans | — | Apr 23 | — | — | Jun 18 – Aug 13 | 50–65 |
| Horseradish | — | — | Apr 30 | — | Sep 3 – Nov 12 | 120–180 |
| Hot Peppers | Feb 12 | Apr 23 | Apr 30 | — | Jul 9 – Oct 15 | 70–120 |
| Hubbard Squash | Mar 19 | Apr 23 | Apr 30 | — | Aug 13 – Sep 17 | 100–120 |
| Jicama | Feb 26 | Apr 23 | Apr 30 | — | Sep 3 – Nov 12 | 120–180 |
| Kabocha | Mar 19 | Apr 23 | Apr 30 | — | Jul 30 – Aug 27 | 85–100 |
| Kai Lan | Mar 12 | Apr 2 | Apr 16 | Aug 11 | Jun 4 – Jul 2 | 45–60 |
| Kale | Mar 12 | Apr 2 | Apr 16 | Aug 11 | Jun 11 – Aug 6 | 50–70 |
| Kidney Beans | — | Apr 23 | — | — | Jul 23 – Aug 27 | 85–110 |
| Kohlrabi | Mar 12 | Apr 2 | Apr 16 | Aug 11 | Jun 4 – Jul 9 | 45–65 |
| Komatsuna | Mar 12 | Apr 2 | Apr 16 | Aug 11 | May 21 – Jun 25 | 35–50 |
| Leeks | Mar 12 | Apr 2 | Apr 16 | Aug 11 | Jul 16 – Oct 1 | 90–150 |
| Lentils | Mar 12 | Apr 2 | Apr 16 | Aug 11 | Jul 9 – Aug 20 | 80–110 |
| Lettuce | Mar 12 | Apr 2 | Apr 16 | Aug 11 | May 21 – Jul 30 | 30–60 |
| Lima Beans | — | Apr 23 | — | — | Jun 25 – Aug 6 | 60–90 |
| Loofah | Feb 26 | Apr 23 | Apr 30 | — | Aug 13 – Oct 15 | 100–150 |
| Luffa | Feb 26 | Apr 23 | Apr 30 | — | Jul 30 – Oct 15 | 90–150 |
| Mache | Mar 12 | Apr 2 | Apr 16 | Aug 11 | May 28 – Jul 2 | 40–60 |
| Malabar Spinach | Feb 26 | Apr 23 | Apr 30 | — | Jun 25 – Jul 23 | 55–70 |
| Melon | Mar 19 | Apr 23 | Apr 30 | — | Jul 9 – Aug 27 | 70–100 |
| Microgreens | Mar 12 | Apr 2 | Apr 16 | Aug 11 | Apr 23 – May 21 | 7–21 |
| Mitsuba | Mar 12 | Apr 2 | Apr 9 | Aug 11 | Jun 4 – Jul 30 | 50–70 |
| Mizuna | Mar 12 | Apr 2 | Apr 16 | Aug 11 | May 21 – Jun 18 | 30–45 |
| Mustard Greens | Mar 12 | Apr 2 | Apr 16 | Aug 11 | May 21 – Jul 23 | 30–50 |
| Napa Cabbage | Mar 12 | Apr 2 | Apr 16 | Aug 11 | Jun 11 – Jul 16 | 55–75 |
| New Zealand Spinach | Feb 26 | Apr 23 | Apr 30 | — | Jun 25 – Jul 23 | 55–70 |
| Okra | Feb 26 | Apr 23 | Apr 30 | — | Jun 25 – Aug 20 | 50–65 |
| Onion | Mar 12 | Apr 2 | Apr 16 | Aug 11 | Jul 16 – Sep 3 | 90–120 |
| Pac Choi | Mar 12 | Apr 2 | Apr 16 | Aug 11 | May 28 – Jun 25 | 40–55 |
| Parsnip | — | Apr 2 | — | Aug 11 | Jul 16 – Aug 27 | 100–130 |
| Patty Pan Squash | Mar 19 | Apr 23 | Apr 30 | — | Jun 18 – Jul 16 | 45–60 |
| Peas | Mar 12 | Apr 2 | Apr 16 | Aug 11 | Jun 11 – Aug 6 | 55–70 |
| Peppers | Feb 12 | Apr 23 | Apr 30 | — | Jul 2 – Sep 10 | 60–90 |
| Pole Beans | Feb 26 | Apr 23 | Apr 30 | — | Jun 25 – Aug 20 | 55–70 |
| Potatoes | Feb 26 | Apr 23 | Apr 30 | — | Jul 9 – Sep 17 | 70–120 |
| Pumpkin | Mar 19 | Apr 23 | Apr 30 | — | Jul 30 – Sep 17 | 85–120 |
| Purslane | Mar 12 | Apr 2 | Apr 16 | Aug 11 | May 28 – Jul 2 | 40–60 |
| Radicchio | Mar 12 | Apr 2 | Apr 16 | Aug 11 | Jun 18 – Jul 23 | 60–80 |
| Radish | — | Apr 2 | — | Aug 11 | Apr 30 – May 21 | 22–35 |
| Rhubarb | — | — | May 7 | — | — | 365–730 |
| Romanesco | Mar 12 | Apr 2 | Apr 16 | Aug 11 | Jul 2 – Aug 13 | 75–100 |
| Rutabaga | — | Apr 2 | — | Aug 11 | Jun 25 – Jul 30 | 80–100 |
| Salsify | — | Apr 2 | — | Aug 11 | Jul 16 – Aug 27 | 100–130 |
| Savoy Cabbage | Mar 12 | Apr 2 | Apr 16 | Aug 11 | Jun 25 – Aug 20 | 70–110 |
| Scallions | Mar 12 | Apr 2 | Apr 16 | Aug 11 | Jun 11 – Jul 9 | 50–70 |
| Scarlet Runner Beans | Feb 26 | Apr 23 | Apr 30 | — | Jul 2 – Aug 6 | 60–80 |
| Shallot | Mar 12 | Apr 2 | Apr 16 | Aug 11 | Jul 16 – Sep 3 | 90–120 |
| Shiso | Feb 26 | Apr 23 | Apr 30 | — | Jun 25 – Aug 20 | 50–70 |
| Snap Peas | Feb 26 | Apr 23 | Apr 30 | — | Jun 25 – Aug 20 | 55–70 |
| Snow Peas | Mar 12 | Apr 2 | Apr 16 | Aug 11 | Jun 11 – Aug 6 | 50–65 |
| Soybeans | — | Apr 23 | — | — | Jul 16 – Sep 10 | 80–120 |
| Spaghetti Squash | Mar 19 | Apr 23 | Apr 30 | — | Jul 30 – Aug 27 | 85–100 |
| Spinach | Mar 12 | Apr 2 | Apr 16 | Aug 11 | May 21 – Jul 23 | 35–50 |
| Squash (Summer) | Mar 19 | Apr 23 | Apr 30 | — | Jun 18 – Aug 20 | 45–65 |
| Squash (Winter) | Mar 19 | Apr 23 | Apr 30 | — | Jul 23 – Sep 17 | 80–120 |
| Sunchoke | — | — | Apr 30 | — | Aug 20 – Oct 15 | 110–150 |
| Sweet Corn | — | Apr 23 | — | — | Jun 25 – Aug 6 | 60–90 |
| Sweet Potatoes | Feb 26 | Apr 23 | Apr 30 | — | Jul 30 – Sep 17 | 90–120 |
| Tatsoi | Mar 12 | Apr 2 | Apr 16 | Aug 11 | May 21 – Jun 25 | 35–50 |
| Tomatillo | Feb 26 | Apr 23 | Apr 30 | — | Jul 2 – Sep 10 | 60–85 |
| Tomatoes | Feb 26 | Apr 23 | Apr 30 | — | Jul 2 – Sep 10 | 60–85 |
| Turnip | — | Apr 2 | — | Aug 11 | May 14 – Jun 18 | 40–60 |
| Watercress | Mar 12 | Apr 2 | Apr 16 | Aug 11 | May 28 – Jul 2 | 40–60 |
| Watermelon | Mar 19 | Apr 23 | Apr 30 | — | Jul 9 – Aug 27 | 70–100 |
| Wax Beans | — | Apr 23 | — | — | Jun 18 – Aug 13 | 50–65 |
| Winter Melon | Feb 26 | Apr 23 | Apr 30 | — | Jul 30 – Sep 17 | 90–120 |
| Yard Long Beans | Feb 26 | Apr 23 | Apr 30 | — | Jun 25 – Aug 6 | 55–80 |
| Zucchini | Mar 19 | Apr 23 | Apr 30 | — | Jun 18 – Aug 13 | 45–60 |
🍓 Fruits to Grow in Silver Spring
31 fruits matched to Zone 7b with planting dates calibrated for Silver Spring.
Show all 31 fruits with dates
| Plant | Start Indoors | Direct Sow | Transplant | Fall Plant | Harvest | Days to Maturity |
|---|---|---|---|---|---|---|
| Alpine Strawberries | — | — | May 7 | — | Aug 6 – Nov 19 | 90–180 |
| Aronia | — | — | May 7 | — | — | 730–1095 |
| Blackberries | — | — | May 7 | — | — | 365–730 |
| Blueberries | — | — | May 7 | — | — | 730–1095 |
| Boysenberries | — | — | May 7 | — | — | 365–730 |
| Cantaloupe | — | — | May 7 | — | Jul 16 – Aug 20 | 70–90 |
| Che Fruit | — | — | May 7 | — | — | 1095–1825 |
| Cranberries | — | — | May 7 | — | — | 730–1095 |
| Currants | — | — | May 7 | — | — | 730–1095 |
| Elderberries | — | — | May 7 | — | — | 730–1095 |
| Figs | — | — | May 7 | — | — | 730–1825 |
| Goji Berries | — | — | May 7 | — | — | 730–1095 |
| Gooseberries | — | — | May 7 | — | — | 730–1095 |
| Grapes | — | — | May 7 | — | — | 730–1095 |
| Ground Cherry | — | — | May 7 | — | Jul 16 – Sep 10 | 65–80 |
| Hardy Kiwi | — | — | May 7 | — | — | 1095–1825 |
| Haskaps | — | — | May 7 | — | — | 730–1095 |
| Honeydew | — | — | May 7 | — | Jul 30 – Sep 10 | 80–110 |
| Jostaberry | — | — | May 7 | — | — | 730–1095 |
| Kiwi | — | — | May 7 | — | — | 1095–1825 |
| Lingonberries | — | — | May 7 | — | — | 730–1095 |
| Loquat | — | — | May 7 | — | — | 730–1825 |
| Medlar | — | — | May 7 | — | — | 1095–1825 |
| Mulberries | — | — | May 7 | — | — | 730–1825 |
| Pawpaw | — | — | May 7 | — | — | 1095–2555 |
| Persimmon | — | — | May 7 | — | — | 1095–2555 |
| Pomegranate | — | — | May 7 | — | — | 730–1095 |
| Quince | — | — | May 7 | — | — | 1095–1825 |
| Raspberries | — | — | May 7 | — | — | 365–730 |
| Serviceberries | — | — | May 7 | — | — | 730–1095 |
| Strawberries | — | — | May 7 | — | Aug 6 – Dec 17 | 90–365 |
🌿 Herbs to Grow in Silver Spring
36 herbs matched to Zone 7b with planting dates calibrated for Silver Spring.
Show all 36 herbs with dates
| Plant | Start Indoors | Direct Sow | Transplant | Fall Plant | Harvest | Days to Maturity |
|---|---|---|---|---|---|---|
| Angelica | Mar 12 | Apr 2 | Apr 9 | Aug 11 | — | 365–730 |
| Anise | Mar 12 | Apr 2 | Apr 9 | Aug 11 | Jul 9 – Sep 24 | 90–120 |
| Basil | Feb 26 | Apr 23 | Apr 30 | — | Jun 25 – Aug 27 | 50–75 |
| Bee Balm | — | — | Apr 23 | — | Jul 23 – Oct 8 | 90–120 |
| Borage | Mar 12 | Apr 2 | Apr 9 | Aug 11 | Jun 4 – Jul 23 | 50–60 |
| Caraway | Mar 12 | Apr 2 | Apr 9 | Aug 11 | — | 365–450 |
| Catnip | — | — | Apr 23 | — | Jun 25 – Aug 27 | 60–80 |
| Chamomile | Mar 12 | Apr 2 | Apr 9 | Aug 11 | Jun 11 – Aug 20 | 60–90 |
| Chervil | Mar 12 | Apr 2 | Apr 9 | Aug 11 | May 21 – Jul 23 | 40–60 |
| Chives | — | — | Apr 23 | — | Jun 25 – Sep 3 | 60–90 |
| Cilantro | Mar 12 | Apr 2 | Apr 9 | Aug 11 | May 21 – Jul 23 | 40–60 |
| Comfrey | — | — | Apr 23 | — | Jun 25 – Sep 3 | 60–90 |
| Cumin | Mar 12 | Apr 2 | Apr 9 | Aug 11 | Jul 23 – Sep 24 | 100–120 |
| Dill | Mar 12 | Apr 2 | Apr 9 | Aug 11 | May 21 – Jul 23 | 40–60 |
| Epazote | Feb 26 | Apr 23 | Apr 30 | — | Jun 18 – Aug 13 | 45–60 |
| Fennel (herb) | Mar 12 | Apr 2 | Apr 9 | Aug 11 | Jun 11 – Aug 20 | 60–90 |
| Feverfew | — | — | Apr 23 | — | Jul 23 – Oct 8 | 90–120 |
| Garlic Chives | — | — | Apr 23 | — | Jun 25 – Sep 3 | 60–90 |
| Horehound | — | — | Apr 23 | — | Jul 9 – Sep 3 | 75–90 |
| Hyssop | — | — | Apr 23 | — | Jul 2 – Sep 3 | 70–90 |
| Lemon Balm | — | — | Apr 23 | — | Jun 25 – Aug 13 | 60–70 |
| Lemon Thyme | — | — | Apr 23 | — | Jul 2 – Sep 3 | 70–90 |
| Lovage | — | — | Apr 23 | — | Jul 2 – Sep 3 | 70–90 |
| Marjoram | — | — | Apr 23 | — | Jun 25 – Sep 3 | 60–90 |
| Mint | — | — | Apr 23 | — | Jun 25 – Sep 3 | 60–90 |
| Oregano | — | — | Apr 23 | — | Jun 25 – Sep 3 | 60–90 |
| Parsley | Mar 12 | Apr 2 | Apr 9 | Aug 11 | Jun 11 – Aug 13 | 60–80 |
| Rosemary | — | — | Apr 23 | — | Jul 16 – Dec 3 | 80–180 |
| Rue | — | — | Apr 23 | — | Jul 2 – Sep 3 | 70–90 |
| Sage | — | — | Apr 23 | — | Jul 9 – Sep 3 | 75–90 |
| Savory | — | — | Apr 23 | — | Jun 18 – Aug 13 | 50–70 |
| Sorrel | Mar 12 | Apr 2 | Apr 9 | Aug 11 | May 21 – Jul 23 | 40–60 |
| Tarragon | — | — | Apr 23 | — | Jun 25 – Sep 3 | 60–90 |
| Thai Basil | Feb 26 | Apr 23 | Apr 30 | — | Jun 25 – Aug 27 | 50–75 |
| Thyme | — | — | Apr 23 | — | Jul 2 – Sep 3 | 70–90 |
| Valerian | — | — | Apr 23 | — | Aug 27 – Dec 3 | 120–180 |
🌸 Flowers to Grow in Silver Spring
53 flowers matched to Zone 7b with planting dates calibrated for Silver Spring.
Show all 53 flowers with dates
| Plant | Start Indoors | Direct Sow | Transplant | Fall Plant | Bloom | Days to Maturity |
|---|---|---|---|---|---|---|
| Ageratum | Mar 5 | Apr 16 | Apr 16 | — | Jun 11 – Oct 15 | 60–75 |
| Alliums | — | — | — | Sep 15 | Oct 13 – Nov 3 | 28–42 |
| Anemones | — | — | — | Aug 25 | Sep 8 – Oct 6 | 90–120 |
| Astilbe | Feb 12 | — | Apr 23 | — | Jul 2 – Aug 27 | 70–100 |
| Bachelor's Button | Mar 5 | Mar 12 | Apr 16 | Aug 25 | Jun 18 – Sep 24 | 60–90 |
| Begonias | Feb 5 | — | Apr 16 | — | Jun 25 – Oct 29 | 70–90 |
| Black-eyed Susan | Feb 12 | Apr 9 | Apr 23 | — | Jul 2 – Nov 12 | 60–80 |
| Bleeding Hearts | Feb 12 | — | Apr 23 | — | Jun 11 – Jul 16 | 60–90 |
| Calendula | Mar 5 | Mar 12 | Apr 16 | Aug 25 | Jun 4 – Oct 1 | 50–70 |
| California Poppy | — | Mar 19 | — | Aug 25 | May 28 – Aug 20 | 60–90 |
| Celosia | Mar 19 | Apr 16 | Apr 16 | — | Jun 18 – Oct 29 | 60–90 |
| Columbine | Feb 19 | Apr 23 | Apr 23 | — | Jun 11 – Jul 16 | 70–100 |
| Coreopsis | Feb 12 | Apr 16 | Apr 23 | — | Jun 25 – Nov 12 | 60–80 |
| Cosmos | Mar 19 | Apr 9 | Apr 9 | — | Jun 18 – Oct 22 | 60–90 |
| Crocus | — | — | — | Sep 15 | Aug 11 – Sep 1 | 10–20 |
| Daffodils | — | — | — | Sep 15 | Aug 18 – Sep 8 | 20–40 |
| Dahlias | Mar 26 | Apr 23 | Apr 23 | — | Jul 2 – Nov 19 | 70–120 |
| Daylily | Feb 12 | — | Apr 23 | — | Jul 2 – Nov 12 | 60–90 |
| Dianthus | Feb 19 | Mar 12 | Mar 19 | — | May 7 – Jul 30 | 60–80 |
| Echinacea (Purple Coneflower) | Feb 12 | Apr 23 | Apr 23 | — | Jul 9 – Nov 12 | 70–90 |
| Foxglove | Feb 19 | Apr 23 | Apr 23 | — | Jun 11 – Jul 16 | 80–120 |
| Gaillardia (Blanket Flower) | Feb 26 | Apr 16 | Apr 16 | — | Jun 25 – Nov 26 | 70–100 |
| Geraniums | Feb 5 | — | Apr 16 | — | Jun 25 – Oct 29 | 70–100 |
| Gladiolus | — | Apr 16 | Apr 16 | — | Jun 25 – Nov 12 | 70–100 |
| Hostas | Feb 5 | — | Apr 23 | — | Jul 2 – Nov 5 | 60–90 |
| Hyacinths | — | — | — | Sep 15 | Sep 8 – Sep 29 | 14–28 |
| Hydrangeas | Feb 5 | — | Apr 16 | — | Jun 25 – Oct 22 | 90–150 |
| Impatiens | Feb 19 | — | Apr 16 | — | Jun 25 – Oct 29 | 60–75 |
| Irises | — | Division | Apr 23 | — | Jun 11 – Jul 16 | 60–100 |
| Larkspur | — | Mar 19 | — | Aug 11 | May 28 – Aug 20 | 60–90 |
| Lavender | Feb 12 | — | Apr 23 | — | Jul 2 – Sep 24 | 90–120 |
| Lilies | — | Division | Apr 16 | — | Jun 25 – Oct 15 | 70–120 |
| Lobelia | Feb 12 | — | Mar 19 | — | May 14 – Jul 23 | 70–80 |
| Lupine | Feb 19 | Apr 23 | Apr 23 | — | Jun 11 – Jul 16 | 75–100 |
| Marigolds | Mar 5 | Apr 16 | Apr 16 | — | Jun 11 – Oct 1 | 50–70 |
| Nasturtium | Mar 19 | Apr 16 | Apr 16 | — | Jun 11 – Oct 29 | 55–65 |
| Pansy | Feb 5 | — | Apr 9 | Aug 11 | Jun 4 – Aug 27 | 70–90 |
| Peonies | — | Division | Apr 23 | — | Jun 18 – Jul 16 | 90–120 |
| Petunia | Feb 19 | — | Apr 16 | — | Jun 25 – Oct 22 | 70–90 |
| Phlox | Feb 12 | Apr 23 | Apr 23 | — | Jul 2 – Sep 24 | 80–110 |
| Portulaca | Mar 19 | Apr 16 | Apr 16 | — | Jun 4 – Oct 15 | 50–70 |
| Ranunculus | — | — | — | Aug 25 | Sep 15 – Oct 13 | 90–120 |
| Roses | Feb 5 | — | Apr 16 | — | Jun 25 – Nov 5 | 90–180 |
| Salvia | Feb 19 | — | Apr 16 | — | Jun 25 – Oct 29 | 70–90 |
| Sedum (Stonecrop) | Feb 12 | — | Apr 23 | — | Aug 13 – Nov 5 | 60–90 |
| Snapdragon | Feb 5 | Mar 19 | Apr 9 | Aug 25 | Jun 18 – Sep 24 | 70–100 |
| Sunflower | Mar 26 | Apr 16 | Apr 16 | — | Jul 9 – Oct 29 | 70–100 |
| Sweet Alyssum | Mar 5 | Mar 19 | Apr 16 | Sep 8 | May 28 – Sep 3 | 45–60 |
| Sweet Pea | — | — | — | Aug 25 | Nov 3 – Jan 26 | 65–85 |
| Tulips | — | — | — | Sep 15 | Sep 1 – Sep 22 | 15–30 |
| Vinca (Annual) | Feb 5 | — | Apr 16 | — | Jun 25 – Oct 29 | 70–90 |
| Yarrow | Feb 12 | Apr 9 | Apr 23 | — | Jun 25 – Nov 12 | 60–90 |
| Zinnia | Mar 19 | Apr 16 | Apr 16 | — | Jun 25 – Oct 29 | 60–70 |
Monthly Planting Guide for Silver Spring
ZIP Codes in Silver Spring
Click any ZIP to see its specific frost, soil, and climate measurements (some ZIPs differ noticeably from the town aggregate):
Gardening Guides & Resources
Helpful guides from The Ultimate Homestead to improve your garden in Montgomery County.
Your Montgomery County Garden Planner — Free
A 22-page printable planner built for Montgomery County (Zone 7b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.
The Gardener's Encyclopedia to Companion Planting
The pairings that make vegetables, herbs, and flowers grow better — and the ones that quietly wreck a bed.
- Proven pairings for 200+ vegetables, herbs, flowers, and fruits
- Full seed-starting + planting schedule with timing and spacing
- Bonus: square-foot gardening guide + printable seasonal planners
Seed Saving & Storage Guide
Most saved seeds go bad before next season. This shows exactly when to pick, how to dry, and where to store seeds from 200 plants so yours don't.
- 200 plants, step-by-step: life cycle, pollination type, isolation
- Exact temperature + humidity ranges that keep seeds viable
- Bonus: searchable Google Sheets tracker + custom GPT assistant
Composting Guide for Homesteaders
Turn kitchen scraps and yard waste into compost that actually feeds the garden — instead of a pile that smells, attracts pests, and never breaks down.
- 14 sections on composting methods, soil science, and troubleshooting
- The 7-step hot-compost system from start to finish
- Bonus tools: troubleshooting chart, safety guide, monitoring log