Summit County, CO — Planting Guide
Your June planting checklist for Summit County, Colorado
Each item below is timed to Summit County, Colorado's frost dates and soil temperatures. Skip nothing, stress about nothing.
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Transplant basil, cucumber, and kale outside
Harden off for 7 days — a little more sun each day — before planting. That's the difference between a seedling that thrives and one that stalls.
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Plant basil, carrots, and cucumber from seed, right in the garden
Your soil is 45°F — warm enough for these to germinate without babying.
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Bring in the radish, cress, and microgreens
Morning harvests are best — cooler temperatures mean crisper produce and longer fridge life.
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Start your fall crops: carrots, kale, and lettuce
Keep young seedlings shaded and moist in summer heat. A row of taller crops works as natural shade.
A few tasks this June that'll pay off in July
- Transplants going out: alpine strawberries, aronia, and blackberries
- Starting indoors: cucumber, kale, and lettuce
- First harvests: lettuce, radish, and anemones
- Fall sowing: alliums, crocus, and daffodils
Summit County is in USDA Zone 5a. The average last spring frost is June 16 and the first fall frost is September 4, giving you a growing season of approximately 80 days.
At an elevation of 7,005 ft, Summit County receives approximately 17.5 in of rainfall annually. Summer highs average 81°F with winter lows around 6°F. The predominant soil type is Loam.
Based on 31 years of NOAA climate station data, the last frost date here varies by 29 days year to year — ranging from May 28 in warm years to June 26 in cold years. The growing season is trending longer by about 1.67 days per decade. Summit County scores 33/100 (Challenging) on the Microclimate Index.
🌡️ Zone
5a (-20°F to -15°F min)
❄️ Last Frost
June 16
🍂 First Frost
September 4
📅 Growing Season
80 days
⛰️ Elevation
7,005 ft
🌧️ Annual Rainfall
17.5 in
Monthly Watering Calendar for Summit County
When you'll need to water your garden — based on average monthly rainfall vs. the ~1 inch/week most gardens need.
Why this matters: Watering math is simple: 1 inch of rainfall delivers ~600 gallons to a 1,000 sq ft garden. Summit County's 18" annual rainfall covers some months entirely; others need a few hours of drip irrigation per week. The calendar tells you which is which.
View detailed monthly data
| Month | Avg Rainfall | Rainy Days | Extra Water Needed | Watering Effort |
|---|---|---|---|---|
| Jan | 1.4 in | 6 days | — | None |
| Feb | 1.1 in | 5 days | — | None |
| Mar | 1.6 in | 9 days | — | None |
| Apr | 1.7 in | 8 days | 2.6 in | High |
| May | 1.8 in | 7 days | 2.5 in | High |
| Jun | 1.3 in | 5 days | 3 in | High |
| Jul | 1.5 in | 5 days | 2.8 in | High |
| Aug | 1.9 in | 7 days | 2.4 in | High |
| Sep | 1.3 in | 5 days | 3 in | High |
| Oct | 1.6 in | 5 days | 2.7 in | High |
| Nov | 1.2 in | 5 days | — | None |
| Dec | 1.2 in | 7 days | — | None |
Annual total: 17.6 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.
Summit County Soil Profile
Soil Type
Loam
Soil pH
6.8-8
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) | Jun 26 | Sep 20 | 86 days |
| Cautious | Jun 22 | Sep 10 | 80 days |
| Average year | Jun 16 | Sep 4 | 80 days |
| Optimistic | Jun 10 | Aug 27 | 78 days |
| Aggressive (risky) | May 28 | Aug 15 | 79 days |
Not very — frost dates can vary by ±29 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 1.7 days per decade). Spring is arriving earlier than it used to. Good news for gardeners.
Gardening Difficulty Score
Summit County has challenging growing conditions. Season extension and careful variety selection are essential.
Local Gardening Help in Summit 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 Summit County's climate and soil.
County Extension Office
Summit County Colorado State University Extension Extension Office
Phone: 970-491-6281
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 Summit County
Finding local nurseries & garden centers in Summit County
Why Buy Local
Local nurseries carry plants that are proven to grow in your area. Staff can give you advice specific to Summit 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 Summit County CO" or "garden center Summit 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 Summit County CO" or check your extension office and local parks department. Facebook groups like "Summit County Gardeners" or "Colorado 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.
Sunlight & Day Length in Summit County
Monthly daylight hours and peak sun — critical for onion varieties, photoperiod-sensitive plants, and solar garden planning.
What this means for you: Plants use day length as their seasonal clock. Some crops flower when days lengthen (most flowers), some when days shorten (chrysanthemums, soybeans). Summit County's curve is the timing layer beneath everything you grow.
Longest Day
14.8 hours
Summer solstice daylight
Shortest Day
9.2 hours
Winter solstice daylight
Peak Sun Hours
11.1 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 | 5.5 hr | Short day |
| February | 10.5 hr | 6.1 hr | Short day |
| March | 11.7 hr | 7.1 hr | Short day |
| April | 13.1 hr | 7.2 hr | Neutral |
| May | 14.2 hr | 8.8 hr | Long day |
| June | 14.8 hr | 11.1 hr | Long day |
| July | 14.5 hr | 9.8 hr | Long day |
| August | 13.6 hr | 9.4 hr | Neutral |
| September | 12.2 hr | 8.1 hr | Neutral |
| October | 10.9 hr | 6.9 hr | Short day |
| November | 9.8 hr | 5.8 hr | Short day |
| December | 9.2 hr | 5.1 hr | Short day |
Peak sun hours factor in typical cloud cover — use these for solar panel and shade-planning calculations.
Soil Temperature & Composting in Summit County
Monthly soil temps tell you when to plant warm-season crops, and when your compost pile is actively working.
For new gardeners: Mulched soil swings less. The mulch insulates against both winter cold and summer heat. In Summit County, an aggressive mulch program shifts your effective soil temperature curve toward optimal for most crops.
Plant Warm Crops When
Soil reaches 60°F+
Soil rarely reaches 60°F — use black plastic mulch to warm soil.
Best Month to Compost
Jul
Microbial activity peaks when soil is warm.
Active Composting
2 months
Short season — insulate pile or use indoor vermicomposting.
View detailed monthly data
| Month | Soil 4" Deep | Soil 8" Deep | Compost Activity | Time to Finish |
|---|---|---|---|---|
| Jan | -4°F | 3°F | ❄️ Dormant | ~36 weeks |
| Feb | -3°F | 1°F | ❄️ Dormant | ~36 weeks |
| Mar | 6°F | 10°F | ❄️ Dormant | ~36 weeks |
| Apr | 20°F | 20°F | ❄️ Dormant | ~36 weeks |
| May | 32°F | 30°F | ❄️ Dormant | ~36 weeks |
| Jun | 45°F | 40°F | 🐢 Slow | ~24 weeks |
| Jul | 51°F | 45°F | ♻️ Active | ~14 weeks |
| Aug | 54°F | 50°F | ♻️ Active | ~14 weeks |
| Sep | 44°F | 43°F | 🐢 Slow | ~24 weeks |
| Oct | 33°F | 34°F | ❄️ Dormant | ~36 weeks |
| Nov | 16°F | 23°F | ❄️ Dormant | ~36 weeks |
| Dec | 4°F | 11°F | ❄️ Dormant | ~36 weeks |
Highlighted rows = soil 60°F+ (safe for warm-season transplants). Compost finishes fastest during peak activity months.
Pest & Disease Pressure in Summit County
Computed from local climate patterns — warmer, humid conditions increase pest generations and fungal disease risk.
Quick context: Pest and disease pressure is the X-factor most beginners under-plan for. Summit County'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
Low disease risk — dry conditions reduce fungal problems.
Seasonal Risk
View 5 common pests in your area
| Pest | Risk Level | Peak Months |
|---|---|---|
| Aphids | Moderate | May, Jun, Jul, Aug |
| Cabbage worms | Low | Jun, Jul, Aug |
| Colorado potato beetle | Moderate | Jun, Jul |
| Flea beetles | Moderate | May, Jun, Jul |
| Slugs | Low | May, Jun, Jul, Aug, Sep |
Organic pest management tips
- Maintain healthy soil with regular compost additions to build natural pest resistance
- Practice crop rotation annually to break pest cycles
- Encourage beneficial insects with flowering herbs like dill, fennel, and yarrow
Cover Crops for Summit County
Cover crops protect bare soil, fix nitrogen, suppress weeds, and improve soil structure — with planting dates calibrated for your area.
For new gardeners: Cover crops are the experienced gardener's secret weapon. Summit County's climate determines which species thrive: clover and vetch in mild winters, cereal rye and Austrian peas in cold ones.
Spring Cover Crops (2 options) — Build soil before the main growing season
| Crop | Plant By | Terminate | N-Fixing | Soil Benefit |
|---|---|---|---|---|
| Buckwheat | Jun 16 | Jun 26 | — | Rapid growth, attracts pollinators, suppresses weeds |
| White clover | May 20 | Jun 26 | ✓ 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 | Jul 1 | Aug 14 | — | Deep roots break compaction, attract pollinators and beneficial insects |
Fall Cover Crops (5 options) — Plant after harvest to protect soil over winter
| Crop | Plant By | Terminate | N-Fixing | Soil Benefit |
|---|---|---|---|---|
| Daikon radish | Jul 16 | May 26 | — | Deep taproot breaks compaction, excellent for clay soils |
| Hairy vetch | Jun 10 | Jun 2 | ✓ Yes | Excellent nitrogen fixer, good for depleted soils |
| Oats | Jul 26 | May 26 | — | Quick biomass, winterkills in cold zones — no spring tillage needed |
| Winter rye | Jun 12 | Jun 2 | — | Suppresses weeds, prevents erosion, breaks up compacted soil |
| Winter wheat | May 29 | Jun 2 | — | Erosion control, weed suppression, good biomass |
Wind & Microclimate in Summit County
Why this matters: A 10 mph wind doesn't feel like much, but it triples leaf transpiration vs. still air. Summit County's 10.9 mph average means most days are gentle on plants, but consider how a 20+ mph spring gust would affect a flat of seedlings hardened off too quickly.
Wind dries soil, stresses plants, and affects frost patterns. Understanding your exposure helps with garden placement.
Seasonal Wind Speed
Spring: 17 mph Summer: 11 mph
Fall: 12 mph Winter: 14 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
High
Hilly terrain with 2,839 ft of elevation range — cold air pools in low spots. Avoid planting frost-sensitive crops in valleys.
Rainwater Harvesting in Summit County
How much water you can collect, when to collect it, and what size system you need for your garden.
The practical takeaway: Captured rainwater is better for plants than tap water (no chlorine), works during water restrictions, and reduces stormwater runoff. Summit County's 18" annual rainfall is a meaningful pool — most homes could capture 10,000+ gallons a year with a decent system.
Annual Collection
8,771 gal
Per 1,000 sq ft of roof area (at 80% collection efficiency)
Recommended Setup
8 rain barrels (55 gal each)
For a typical 500 sq ft garden. Serious collectors: consider a 1,750 gal tank.
Legal Status
Limited
Your state has quantity limits on rainwater collection — check local regulations before installing large systems.
Best Collection Months
Mar, Apr, May, Aug
Highest rainfall months — your barrels will fill up quickly during these months.
Months to Draw From Storage
Feb, Nov, 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 17.6 inches of rain per year
- A 1,000 sq ft roof can collect roughly 8,771 gallons annually
- Check CO state regulations — rainwater harvesting has quantity limits
- In your dry climate, every drop counts — consider a larger cistern system
- Position collection tanks in shade to reduce evaporation and algae growth
Soil & Growing Conditions in Summit County
Soil Type
Loam
Soil pH 6.8–8 · Excessively Drained drainage
Good candidate for raised beds to maximise drainage and extend the season.
Watering Needs
Drought stress: 7.5/10
High drought stress. Consistent irrigation is essential — consider drip systems, heavy mulch, and drought-tolerant varieties.
Season Tips
80-day frost-free season
A short season means indoor starts are critical for warm-season crops. Prioritise cold-hardy, fast-maturing varieties and use row covers to extend autumn harvests.
Your Free Printable Garden Planner
Plan every bed, every planting, every harvest — in one place. This 22-page printable includes your zone's planting calendar, a month-by-month task list, a seed inventory tracker, a harvest log, and succession-planting charts. Built to print, write in, and actually use all season.
Recommended for Your Garden
Test your soil pH, nitrogen, phosphorus, and potassium levels before planting.
Get instant, accurate soil pH readings to fine-tune your amendments.
Boost soil fertility and structure with rich, well-aged organic compost.
🥬 Vegetables to Grow in Summit County
105 vegetables that grow well in Zone 5a with planting dates for Summit County.
Show all 105 vegetables with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Fall Plant | Harvest | Days to Maturity |
|---|---|---|---|---|---|---|
| Acorn Squash | May 12 | Jun 23 | Jun 30 | — | Sep 22 – Oct 27 | 80–100 |
| Amaranth | Apr 21 | Jun 23 | Jun 30 | — | Sep 29 – Nov 17 | 90–120 |
| Arugula | May 12 | Jun 2 | Jun 16 | Jun 26 | Jul 21 – Sep 22 | 30–50 |
| Asparagus | — | — | Jun 30 | — | — | 730–1095 |
| Beets | — | Jun 2 | — | Jun 26 | Jul 28 – Aug 25 | 50–70 |
| Belgian Endive | May 12 | Jun 2 | Jun 16 | Jun 26 | Oct 6 – Dec 1 | 110–150 |
| Bitter Melon | Apr 21 | Jun 23 | Jun 30 | — | Sep 1 – Oct 13 | 60–90 |
| Black Beans | — | Jun 23 | — | — | Sep 22 – Nov 10 | 90–120 |
| Bok Choy | May 12 | Jun 2 | Jun 16 | Jun 26 | Jul 28 – Sep 1 | 40–60 |
| Broccoli | May 12 | Jun 2 | Jun 16 | Jun 26 | Aug 18 – Sep 29 | 60–90 |
| Broccoli Rabe | May 12 | Jun 2 | Jun 16 | Jun 26 | Jul 28 – Sep 1 | 40–60 |
| Brussels Sprouts | May 12 | Jun 2 | Jun 16 | Jun 26 | Sep 15 – Nov 10 | 90–130 |
| Butternut Squash | May 12 | Jun 23 | Jun 30 | — | Sep 29 – Nov 3 | 85–110 |
| Cabbage | May 12 | Jun 2 | Jun 16 | Jun 26 | Aug 18 – Oct 13 | 60–100 |
| Calabash | Apr 21 | Jun 23 | Jun 30 | — | Sep 22 – Nov 17 | 80–120 |
| Carrots | — | Jun 2 | — | Jun 26 | Aug 4 – Sep 8 | 60–80 |
| Cauliflower | May 12 | Jun 2 | Jun 16 | Jun 26 | Aug 11 – Oct 13 | 55–100 |
| Celeriac | May 12 | Jun 2 | Jun 16 | Jun 26 | Sep 29 – Nov 3 | 100–120 |
| Celery | May 12 | Jun 2 | Jun 16 | Jun 26 | Sep 8 – Nov 3 | 80–120 |
| Celtuce | May 12 | Jun 2 | Jun 16 | Jun 26 | Aug 18 – Sep 29 | 60–90 |
| Chard | May 12 | Jun 2 | Jun 16 | Jun 26 | Aug 11 – Sep 29 | 50–60 |
| Chickpeas | May 12 | Jun 2 | Jun 16 | Jun 26 | Sep 8 – Oct 20 | 80–110 |
| Chicory | May 12 | Jun 2 | Jun 16 | Jun 26 | Aug 18 – Sep 29 | 60–85 |
| Chinese Cabbage | May 12 | Jun 2 | Jun 16 | Jun 26 | Aug 11 – Sep 8 | 50–70 |
| Christmas Lima Beans | Apr 21 | Jun 23 | Jun 30 | — | Sep 22 – Oct 27 | 80–100 |
| Collard Greens | May 12 | Jun 2 | Jun 16 | Jun 26 | Aug 11 – Oct 13 | 55–75 |
| Corn | — | Jun 23 | — | — | Aug 25 – Oct 20 | 60–100 |
| Cowpeas | — | Jun 23 | — | — | Aug 25 – Oct 6 | 60–90 |
| Cress | May 12 | Jun 2 | Jun 16 | Jun 26 | Jun 30 – Jul 21 | 14–21 |
| Crookneck Squash | May 12 | Jun 23 | Jun 30 | — | Aug 18 – Sep 15 | 45–60 |
| Crosne | — | Jun 2 | — | Jun 26 | Nov 3 – Nov 17 | 150–200 |
| Cucumber | May 12 | Jun 23 | Jun 30 | — | Aug 25 – Oct 20 | 50–70 |
| Daikon | — | Jun 2 | — | Jun 26 | Jul 28 – Aug 25 | 50–70 |
| Delicata Squash | May 12 | Jun 23 | Jun 30 | — | Sep 22 – Oct 27 | 80–100 |
| Edamame | — | Jun 23 | — | — | Sep 8 – Oct 20 | 75–100 |
| Eggplant | Apr 7 | Jun 23 | Jun 30 | — | Sep 8 – Nov 10 | 65–85 |
| Endive | May 12 | Jun 2 | Jun 16 | Jun 26 | Aug 4 – Sep 8 | 45–65 |
| Escarole | May 12 | Jun 2 | Jun 16 | Jun 26 | Aug 11 – Sep 8 | 50–70 |
| Fava Beans | May 12 | Jun 2 | Jun 16 | Jun 26 | Sep 1 – Oct 13 | 75–100 |
| Fennel | Apr 21 | Jun 23 | Jun 30 | — | Sep 1 – Oct 13 | 60–90 |
| Garlic | — | — | — | Jul 24 | Oct 23 – Jan 8 | 90–240 |
| Green Beans | — | Jun 23 | — | — | Aug 18 – Oct 13 | 50–65 |
| Horseradish | — | — | Jun 30 | — | Nov 3 – Dec 15 | 120–180 |
| Hot Peppers | Apr 7 | Jun 23 | Jun 30 | — | Sep 8 – Dec 15 | 70–120 |
| Hubbard Squash | May 12 | Jun 23 | Jun 30 | — | Oct 13 – Nov 17 | 100–120 |
| Kabocha | May 12 | Jun 23 | Jun 30 | — | Sep 29 – Oct 27 | 85–100 |
| Kai Lan | May 12 | Jun 2 | Jun 16 | Jun 26 | Aug 4 – Sep 1 | 45–60 |
| Kale | May 12 | Jun 2 | Jun 16 | Jun 26 | Aug 11 – Oct 6 | 50–70 |
| Kidney Beans | — | Jun 23 | — | — | Sep 22 – Oct 27 | 85–110 |
| Kohlrabi | May 12 | Jun 2 | Jun 16 | Jun 26 | Aug 4 – Sep 8 | 45–65 |
| Komatsuna | May 12 | Jun 2 | Jun 16 | Jun 26 | Jul 21 – Aug 25 | 35–50 |
| Leeks | May 12 | Jun 2 | Jun 16 | Jun 26 | Sep 15 – Dec 1 | 90–150 |
| Lentils | May 12 | Jun 2 | Jun 16 | Jun 26 | Sep 8 – Oct 20 | 80–110 |
| Lettuce | May 12 | Jun 2 | Jun 16 | Jun 26 | Jul 21 – Sep 29 | 30–60 |
| Lima Beans | — | Jun 23 | — | — | Aug 25 – Oct 6 | 60–90 |
| Mache | May 12 | Jun 2 | Jun 16 | Jun 26 | Jul 28 – Sep 1 | 40–60 |
| Melon | May 12 | Jun 23 | Jun 30 | — | Sep 8 – Oct 27 | 70–100 |
| Microgreens | May 12 | Jun 2 | Jun 16 | Jun 26 | Jun 23 – Jul 21 | 7–21 |
| Mitsuba | May 12 | Jun 2 | Jun 9 | Jun 26 | Aug 4 – Sep 29 | 50–70 |
| Mizuna | May 12 | Jun 2 | Jun 16 | Jun 26 | Jul 21 – Aug 18 | 30–45 |
| Mustard Greens | May 12 | Jun 2 | Jun 16 | Jun 26 | Jul 21 – Sep 22 | 30–50 |
| Napa Cabbage | May 12 | Jun 2 | Jun 16 | Jun 26 | Aug 11 – Sep 15 | 55–75 |
| New Zealand Spinach | Apr 21 | Jun 23 | Jun 30 | — | Aug 25 – Sep 22 | 55–70 |
| Okra | Apr 21 | Jun 23 | Jun 30 | — | Aug 25 – Oct 20 | 50–65 |
| Onion | May 12 | Jun 2 | Jun 16 | Jun 26 | Sep 15 – Nov 3 | 90–120 |
| Pac Choi | May 12 | Jun 2 | Jun 16 | Jun 26 | Jul 28 – Aug 25 | 40–55 |
| Parsnip | — | Jun 2 | — | Jun 26 | Sep 15 – Oct 27 | 100–130 |
| Patty Pan Squash | May 12 | Jun 23 | Jun 30 | — | Aug 18 – Sep 15 | 45–60 |
| Peas | May 12 | Jun 2 | Jun 16 | Jun 26 | Aug 11 – Oct 6 | 55–70 |
| Peppers | Apr 7 | Jun 23 | Jun 30 | — | Sep 1 – Nov 10 | 60–90 |
| Pole Beans | Apr 21 | Jun 23 | Jun 30 | — | Aug 25 – Oct 20 | 55–70 |
| Potatoes | Apr 21 | Jun 23 | Jun 30 | — | Sep 8 – Nov 17 | 70–120 |
| Pumpkin | May 12 | Jun 23 | Jun 30 | — | Sep 29 – Nov 17 | 85–120 |
| Purslane | May 12 | Jun 2 | Jun 16 | Jun 26 | Jul 28 – Sep 1 | 40–60 |
| Radicchio | May 12 | Jun 2 | Jun 16 | Jun 26 | Aug 18 – Sep 22 | 60–80 |
| Radish | — | Jun 2 | — | Jun 26 | Jun 30 – Jul 21 | 22–35 |
| Rhubarb | — | — | Jul 7 | — | — | 365–730 |
| Romanesco | May 12 | Jun 2 | Jun 16 | Jun 26 | Sep 1 – Oct 13 | 75–100 |
| Rutabaga | — | Jun 2 | — | Jun 26 | Aug 25 – Sep 29 | 80–100 |
| Salsify | — | Jun 2 | — | Jun 26 | Sep 15 – Oct 27 | 100–130 |
| Savoy Cabbage | May 12 | Jun 2 | Jun 16 | Jun 26 | Aug 25 – Oct 20 | 70–110 |
| Scallions | May 12 | Jun 2 | Jun 16 | Jun 26 | Aug 11 – Sep 8 | 50–70 |
| Scarlet Runner Beans | Apr 21 | Jun 23 | Jun 30 | — | Sep 1 – Oct 6 | 60–80 |
| Shallot | May 12 | Jun 2 | Jun 16 | Jun 26 | Sep 15 – Nov 3 | 90–120 |
| Shiso | Apr 28 | Jun 23 | Jun 30 | — | Aug 25 – Oct 20 | 50–70 |
| Snap Peas | Apr 21 | Jun 23 | Jun 30 | — | Aug 25 – Oct 20 | 55–70 |
| Snow Peas | May 12 | Jun 2 | Jun 16 | Jun 26 | Aug 11 – Oct 6 | 50–65 |
| Soybeans | — | Jun 23 | — | — | Sep 15 – Nov 10 | 80–120 |
| Spaghetti Squash | May 12 | Jun 23 | Jun 30 | — | Sep 29 – Oct 27 | 85–100 |
| Spinach | May 12 | Jun 2 | Jun 16 | Jun 26 | Jul 21 – Sep 22 | 35–50 |
| Squash (Summer) | May 12 | Jun 23 | Jun 30 | — | Aug 18 – Oct 20 | 45–65 |
| Squash (Winter) | May 12 | Jun 23 | Jun 30 | — | Sep 22 – Nov 17 | 80–120 |
| Sunchoke | — | — | Jun 30 | — | Oct 20 – Dec 15 | 110–150 |
| Sweet Corn | — | Jun 23 | — | — | Aug 25 – Oct 6 | 60–90 |
| Sweet Potatoes | Apr 21 | Jun 23 | Jun 30 | — | Sep 29 – Nov 17 | 90–120 |
| Tatsoi | May 12 | Jun 2 | Jun 16 | Jun 26 | Jul 21 – Aug 25 | 35–50 |
| Tomatillo | Apr 21 | Jun 23 | Jun 30 | — | Sep 1 – Nov 10 | 60–85 |
| Tomatoes | Apr 21 | Jun 23 | Jun 30 | — | Sep 1 – Nov 10 | 60–85 |
| Turnip | — | Jun 2 | — | Jun 26 | Jul 14 – Aug 18 | 40–60 |
| Watercress | May 12 | Jun 2 | Jun 16 | Jun 26 | Jul 28 – Sep 1 | 40–60 |
| Watermelon | May 12 | Jun 23 | Jun 30 | — | Sep 8 – Oct 27 | 70–100 |
| Wax Beans | — | Jun 23 | — | — | Aug 18 – Oct 13 | 50–65 |
| Winter Melon | Apr 21 | Jun 23 | Jun 30 | — | Sep 29 – Nov 17 | 90–120 |
| Yard Long Beans | Apr 21 | Jun 23 | Jun 30 | — | Aug 25 – Oct 6 | 55–80 |
| Zucchini | May 12 | Jun 23 | Jun 30 | — | Aug 18 – Oct 13 | 45–60 |
🍓 Fruits to Grow in Summit County
27 fruits that grow well in Zone 5a with planting dates for Summit County.
Show all 27 fruits with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Fall Plant | Harvest | Days to Maturity |
|---|---|---|---|---|---|---|
| Alpine Strawberries | — | — | Jul 7 | — | Oct 6 – Dec 22 | 90–180 |
| Aronia | — | — | Jul 7 | — | — | 730–1095 |
| Blackberries | — | — | Jul 7 | — | — | 365–730 |
| Blueberries | — | — | Jul 7 | — | — | 730–1095 |
| Boysenberries | — | — | Jul 7 | — | — | 365–730 |
| Cantaloupe | — | — | Jul 7 | — | Sep 15 – Oct 20 | 70–90 |
| Che Fruit | — | — | Jul 7 | — | — | 1095–1825 |
| Cranberries | — | — | Jul 7 | — | — | 730–1095 |
| Currants | — | — | Jul 7 | — | — | 730–1095 |
| Elderberries | — | — | Jul 7 | — | — | 730–1095 |
| Goji Berries | — | — | Jul 7 | — | — | 730–1095 |
| Gooseberries | — | — | Jul 7 | — | — | 730–1095 |
| Grapes | — | — | Jul 7 | — | — | 730–1095 |
| Ground Cherry | — | — | Jul 7 | — | Sep 15 – Nov 10 | 65–80 |
| Hardy Kiwi | — | — | Jul 7 | — | — | 1095–1825 |
| Haskaps | — | — | Jul 7 | — | — | 730–1095 |
| Honeydew | — | — | Jul 7 | — | Sep 29 – Nov 10 | 80–110 |
| Jostaberry | — | — | Jul 7 | — | — | 730–1095 |
| Lingonberries | — | — | Jul 7 | — | — | 730–1095 |
| Medlar | — | — | Jul 7 | — | — | 1095–1825 |
| Mulberries | — | — | Jul 7 | — | — | 730–1825 |
| Pawpaw | — | — | Jul 7 | — | — | 1095–2555 |
| Persimmon | — | — | Jul 7 | — | — | 1095–2555 |
| Quince | — | — | Jul 7 | — | — | 1095–1825 |
| Raspberries | — | — | Jul 7 | — | — | 365–730 |
| Serviceberries | — | — | Jul 7 | — | — | 730–1095 |
| Strawberries | — | — | Jul 7 | — | Oct 6 – Dec 22 | 90–365 |
🌿 Herbs to Grow in Summit County
34 herbs that grow well in Zone 5a with planting dates for Summit County.
Show all 34 herbs with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Fall Plant | Harvest | Days to Maturity |
|---|---|---|---|---|---|---|
| Angelica | May 12 | Jun 2 | Jun 9 | Jun 26 | — | 365–730 |
| Anise | May 12 | Jun 2 | Jun 9 | Jun 26 | Sep 8 – Nov 24 | 90–120 |
| Basil | Apr 28 | Jun 23 | Jun 30 | — | Aug 25 – Oct 27 | 50–75 |
| Bee Balm | — | — | Jun 23 | — | Sep 22 – Dec 8 | 90–120 |
| Borage | May 12 | Jun 2 | Jun 9 | Jun 26 | Aug 4 – Sep 22 | 50–60 |
| Caraway | May 12 | Jun 2 | Jun 9 | Jun 26 | — | 365–450 |
| Catnip | — | — | Jun 23 | — | Aug 25 – Oct 27 | 60–80 |
| Chamomile | May 12 | Jun 2 | Jun 9 | Jun 26 | Aug 11 – Oct 20 | 60–90 |
| Chervil | May 12 | Jun 2 | Jun 9 | Jun 26 | Jul 21 – Sep 22 | 40–60 |
| Chives | — | — | Jun 23 | — | Aug 25 – Nov 3 | 60–90 |
| Cilantro | May 12 | Jun 2 | Jun 9 | Jun 26 | Jul 21 – Sep 22 | 40–60 |
| Comfrey | — | — | Jun 23 | — | Aug 25 – Nov 3 | 60–90 |
| Cumin | May 12 | Jun 2 | Jun 9 | Jun 26 | Sep 22 – Nov 24 | 100–120 |
| Dill | May 12 | Jun 2 | Jun 9 | Jun 26 | Jul 21 – Sep 22 | 40–60 |
| Epazote | Apr 28 | Jun 23 | Jun 30 | — | Aug 18 – Oct 13 | 45–60 |
| Fennel (herb) | May 12 | Jun 2 | Jun 9 | Jun 26 | Aug 11 – Oct 20 | 60–90 |
| Feverfew | — | — | Jun 23 | — | Sep 22 – Dec 8 | 90–120 |
| Garlic Chives | — | — | Jun 23 | — | Aug 25 – Nov 3 | 60–90 |
| Horehound | — | — | Jun 23 | — | Sep 8 – Nov 3 | 75–90 |
| Hyssop | — | — | Jun 23 | — | Sep 1 – Nov 3 | 70–90 |
| Lemon Balm | — | — | Jun 23 | — | Aug 25 – Oct 13 | 60–70 |
| Lemon Thyme | — | — | Jun 23 | — | Sep 1 – Nov 3 | 70–90 |
| Lovage | — | — | Jun 23 | — | Sep 1 – Nov 3 | 70–90 |
| Mint | — | — | Jun 23 | — | Aug 25 – Nov 3 | 60–90 |
| Oregano | — | — | Jun 23 | — | Aug 25 – Nov 3 | 60–90 |
| Parsley | May 12 | Jun 2 | Jun 9 | Jun 26 | Aug 11 – Oct 13 | 60–80 |
| Rue | — | — | Jun 23 | — | Sep 1 – Nov 3 | 70–90 |
| Sage | — | — | Jun 23 | — | Sep 8 – Nov 3 | 75–90 |
| Savory | — | — | Jun 23 | — | Aug 18 – Oct 13 | 50–70 |
| Sorrel | May 12 | Jun 2 | Jun 9 | Jun 26 | Jul 21 – Sep 22 | 40–60 |
| Tarragon | — | — | Jun 23 | — | Aug 25 – Nov 3 | 60–90 |
| Thai Basil | Apr 28 | Jun 23 | Jun 30 | — | Aug 25 – Oct 27 | 50–75 |
| Thyme | — | — | Jun 23 | — | Sep 1 – Nov 3 | 70–90 |
| Valerian | — | — | Jun 23 | — | Oct 27 – Dec 8 | 120–180 |
🌸 Flowers to Grow in Summit County
51 flowers that grow well in Zone 5a with planting dates for Summit County.
Show all 51 flowers with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Fall Plant | Bloom | Days to Maturity |
|---|---|---|---|---|---|---|
| Ageratum | Apr 28 | Jun 23 | Jun 23 | — | Aug 18 – Nov 10 | 60–75 |
| Alliums | — | — | — | Jul 24 | Aug 28 – Sep 25 | 28–42 |
| Anemones | May 19 | — | Jun 16 | — | Jul 28 – Aug 25 | 90–120 |
| Astilbe | Apr 14 | — | Jun 30 | — | Sep 15 – Nov 17 | 70–100 |
| Bachelor's Button | May 5 | May 26 | Jun 16 | — | Aug 18 – Oct 27 | 60–90 |
| Begonias | Apr 7 | — | Jun 23 | — | Sep 1 – Nov 24 | 70–90 |
| Black-eyed Susan | Apr 14 | Jun 16 | Jun 30 | — | Sep 15 – Dec 15 | 60–80 |
| Bleeding Hearts | Apr 14 | — | Jun 30 | — | Aug 25 – Oct 6 | 60–90 |
| Calendula | May 5 | May 26 | Jun 16 | — | Aug 4 – Oct 27 | 50–70 |
| Celosia | May 12 | Jun 30 | Jun 30 | — | Sep 1 – Dec 1 | 60–90 |
| Columbine | Apr 14 | Jun 30 | Jun 30 | — | Aug 25 – Oct 6 | 70–100 |
| Coreopsis | Apr 14 | Jun 23 | Jun 30 | — | Sep 8 – Dec 15 | 60–80 |
| Cosmos | May 19 | Jun 23 | Jun 23 | — | Sep 1 – Nov 24 | 60–90 |
| Crocus | — | — | — | Jul 24 | Jun 5 – Jun 26 | 10–20 |
| Daffodils | — | — | — | Jul 24 | Jun 12 – Jul 3 | 20–40 |
| Dahlias | May 19 | Jun 23 | Jun 23 | — | Sep 15 – Dec 8 | 70–120 |
| Daylily | Apr 14 | — | Jun 30 | — | Sep 22 – Dec 15 | 60–90 |
| Dianthus | Apr 14 | May 19 | Jun 2 | — | Jul 21 – Oct 6 | 60–80 |
| Echinacea (Purple Coneflower) | Apr 14 | Jun 30 | Jun 30 | — | Sep 22 – Dec 15 | 70–90 |
| Foxglove | Apr 14 | Jun 30 | Jun 30 | — | Aug 25 – Oct 6 | 80–120 |
| Gaillardia (Blanket Flower) | Apr 21 | Jun 30 | Jun 30 | — | Sep 8 – Dec 29 | 70–100 |
| Geraniums | Apr 7 | — | Jun 23 | — | Sep 1 – Nov 24 | 70–100 |
| Gladiolus | — | Jun 23 | Jun 23 | — | Sep 15 – Dec 8 | 70–100 |
| Hostas | Apr 7 | — | Jun 30 | — | Sep 22 – Dec 15 | 60–90 |
| Hyacinths | — | — | — | Jul 24 | Jul 3 – Jul 31 | 14–28 |
| Hydrangeas | Apr 7 | — | Jun 30 | — | Sep 15 – Dec 1 | 90–150 |
| Impatiens | Apr 21 | — | Jun 23 | — | Sep 1 – Nov 24 | 60–75 |
| Irises | — | Division | Jun 30 | — | Aug 25 – Sep 29 | 60–100 |
| Larkspur | — | May 19 | — | — | Jul 28 – Sep 22 | 60–90 |
| Lavender | Apr 7 | — | Jul 7 | — | Sep 15 – Oct 27 | 90–120 |
| Lilies | — | Division | Jun 30 | — | Sep 8 – Dec 1 | 70–120 |
| Lobelia | Apr 7 | — | Jun 9 | — | Aug 4 – Oct 13 | 70–80 |
| Lupine | Apr 14 | Jun 30 | Jun 30 | — | Aug 25 – Oct 6 | 75–100 |
| Marigolds | May 5 | Jun 23 | Jun 23 | — | Aug 18 – Nov 10 | 50–70 |
| Nasturtium | May 19 | Jun 23 | Jun 23 | — | Aug 18 – Nov 24 | 55–65 |
| Pansy | Apr 7 | — | Jun 16 | — | Aug 11 – Oct 6 | 70–90 |
| Peonies | — | Division | Jun 30 | — | Sep 8 – Oct 20 | 90–120 |
| Petunia | Apr 21 | — | Jun 23 | — | Sep 1 – Nov 24 | 70–90 |
| Phlox | Apr 14 | Jun 30 | Jun 30 | — | Sep 15 – Dec 1 | 80–110 |
| Portulaca | May 12 | Jun 30 | Jun 30 | — | Aug 18 – Nov 17 | 50–70 |
| Roses | Apr 7 | — | Jun 30 | — | Sep 15 – Dec 15 | 90–180 |
| Salvia | Apr 14 | — | Jun 23 | — | Sep 1 – Nov 24 | 70–90 |
| Sedum (Stonecrop) | Apr 14 | — | Jun 30 | — | Oct 27 – Dec 29 | 60–90 |
| Snapdragon | Apr 7 | Jun 2 | Jun 16 | — | Aug 25 – Oct 27 | 70–100 |
| Sunflower | May 26 | Jun 23 | Jun 23 | — | Sep 15 – Nov 24 | 70–100 |
| Sweet Alyssum | Apr 28 | Jun 2 | Jun 16 | — | Jul 28 – Oct 6 | 45–60 |
| Sweet Pea | May 5 | May 12 | Jun 16 | — | Sep 1 – Nov 3 | 65–85 |
| Tulips | — | — | — | Jul 24 | Jun 26 – Jul 17 | 15–30 |
| Vinca (Annual) | Mar 31 | — | Jun 30 | — | Sep 8 – Nov 24 | 70–90 |
| Yarrow | Apr 14 | Jun 16 | Jun 30 | — | Sep 8 – Dec 15 | 60–90 |
| Zinnia | May 19 | Jun 23 | Jun 23 | — | Sep 1 – Nov 24 | 60–70 |