Rolla, MO — Planting Guide for June
Free PDF, personalized for your town's frost dates & climate. Drop your email — we'll send the link.
June in Rolla, MO — your action list
June is a pivotal month for Rolla, MO gardens. Focus on these tasks first and you'll set up the rest of the season for success.
-
Fire up the seed-starting tray: peppers, pole beans, and tomatoes
Bottom-water once the first true leaves appear — it keeps stems dry and knocks back damping-off.
-
Basket week: basil, carrots, and cucumber
The more you pick, the more the plant produces. Letting fruit overripen tells the plant it's time to stop.
A few tasks this June that'll pay off in July
- First harvests: basil, carrots, and cucumber
Rolla has a classic four-season growing climate (Zone 6b). The last spring frost typically lands around April 9 and the first fall frost arrives around October 24 — a 198-day frost-free season that's long enough for tomatoes, peppers, melons, and a full succession of cool-weather crops on either side. The trick is timing: start warm-season seedlings indoors 6–8 weeks before last frost, harden them off, and plant out the week after your local frost date is statistically safe.
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 (15.3 weeks/year on average). Mulching and drip irrigation pay for themselves quickly.
🌡️ USDA Zone
6b (-5°F to 0°F min)
❄️ Avg. Last Frost
April 9
🍂 Avg. First Frost
October 24
📅 Growing Season
198 days
🌧️ Climate
Humid 42.6" annual
💨 Wind
Moderate 9.0 mph avg
🥶 Frost Tier
Regular 0% frost-free years
🏜️ Drought
15.3 wk/yr trend stable
📍 ZIP Codes
3 ZIPs
Monthly Watering Calendar for Rolla
When you'll need to water your garden — based on average monthly rainfall vs. the ~1 inch/week most gardens need.
What this means for you: In humid climates, watering is usually about timing (morning, not evening, to prevent disease) more than volume. In dry climates, it's about depth (water deep, less often) more than frequency. Rolla's 43" annual tells you which side you're on.
View detailed monthly data
| Month | Avg Rainfall | Rainy Days | Extra Water Needed | Watering Effort |
|---|---|---|---|---|
| Jan | 1.4 in | 8 days | — | None |
| Feb | 1.7 in | 7 days | — | None |
| Mar | 3 in | 8 days | 1.3 in | Moderate |
| Apr | 3.8 in | 10 days | 0.5 in | Low |
| May | 5.2 in | 9 days | — | Low |
| Jun | 4.9 in | 10 days | — | Low |
| Jul | 4.6 in | 10 days | — | Low |
| Aug | 4.7 in | 10 days | — | Low |
| Sep | 3.7 in | 7 days | 0.6 in | Moderate |
| Oct | 2.7 in | 9 days | 1.6 in | High |
| Nov | 3 in | 8 days | — | None |
| Dec | 2 in | 8 days | — | None |
Annual total: 40.7 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.
Rolla Soil Profile
Soil Type
Silt Loam
Soil pH
5.2-7
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) | Apr 22 | Nov 7 | 199 days |
| Cautious | Apr 15 | Oct 31 | 199 days |
| Average year | Apr 9 | Oct 24 | 198 days |
| Optimistic | Apr 5 | Oct 16 | 194 days |
| Aggressive (risky) | Mar 24 | Oct 7 | 197 days |
Not very — frost dates can vary by ±28 days year-to-year. Use the "Conservative" row in the table below, and keep row covers handy for surprise late frosts.
Gardening Difficulty Score
Phelps County offers good growing conditions. A little planning around frost dates goes a long way.
Local Gardening Help in Phelps 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 Phelps County's climate and soil.
County Extension Office
Phelps County University of Missouri Extension Extension Office
Phone: 573-882-7554
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 Phelps County
Finding local nurseries & garden centers in Phelps County
Why Buy Local
Local nurseries carry plants that are proven to grow in your area. Staff can give you advice specific to Phelps 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 Phelps County MO" or "garden center Phelps 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 Phelps County MO" or check your extension office and local parks department. Facebook groups like "Phelps County Gardeners" or "Missouri 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 Rolla
Monthly daylight hours and peak sun — critical for onion varieties, photoperiod-sensitive plants, and solar garden planning.
The practical takeaway: Plants use day length as their seasonal clock. Some crops flower when days lengthen (most flowers), some when days shorten (chrysanthemums, soybeans). Rolla's curve is the timing layer beneath everything you grow.
Longest Day
14.6 hours
Summer solstice daylight
Shortest Day
9.4 hours
Winter solstice daylight
Peak Sun Hours
9.3 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 | 9.6 hr | 3.7 hr | Short day |
| February | 10.6 hr | 4.8 hr | Short day |
| March | 11.7 hr | 5.6 hr | Short day |
| April | 13 hr | 6.9 hr | Neutral |
| May | 14 hr | 8.4 hr | Long day |
| June | 14.6 hr | 8.8 hr | Long day |
| July | 14.4 hr | 9.3 hr | Long day |
| August | 13.5 hr | 8.5 hr | Neutral |
| September | 12.2 hr | 7.4 hr | Neutral |
| October | 11 hr | 5.4 hr | Short day |
| November | 9.9 hr | 4 hr | Short day |
| December | 9.4 hr | 3.7 hr | Short day |
Peak sun hours factor in typical cloud cover — use these for solar panel and shade-planning calculations.
Soil Temperature & Composting in Rolla
Monthly soil temps tell you when to plant warm-season crops, and when your compost pile is actively working.
Quick context: Lettuce germinates at 35°F. Beans want 60°F. Tomatoes 65°F+. Soil temp, not air temp, is what plants feel. Rolla's monthly curve tells you when each crop actually has the conditions to take off.
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 | 29°F | 40°F | ❄️ Dormant | ~36 weeks |
| Feb | 32°F | 39°F | ❄️ Dormant | ~36 weeks |
| Mar | 41°F | 42°F | 🐢 Slow | ~24 weeks |
| Apr | 51°F | 51°F | ♻️ Active | ~14 weeks |
| May | 65°F | 59°F | 🔥 Peak | ~8 weeks |
| Jun | 74°F | 70°F | 🔥 Peak | ~8 weeks |
| Jul | 82°F | 77°F | 🔥 Peak | ~8 weeks |
| Aug | 84°F | 79°F | 🔥 Peak | ~8 weeks |
| Sep | 76°F | 74°F | 🔥 Peak | ~8 weeks |
| Oct | 62°F | 67°F | ♻️ Active | ~14 weeks |
| Nov | 51°F | 56°F | ♻️ Active | ~14 weeks |
| Dec | 36°F | 46°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 Rolla
Computed from local climate patterns — warmer, humid conditions increase pest generations and fungal disease risk.
The practical takeaway: Two gardeners can grow identical seeds and get wildly different results based on pest pressure alone. Rolla's climate sets a floor on what's possible without intervention.
Insect Pest Pressure
Moderate — common pests appear but manageable with monitoring.
Disease Risk
Moderate — watch for mildew and blight during wet periods.
Seasonal Risk
View 6 common pests in your area
| Pest | Risk Level | Peak Months |
|---|---|---|
| Aphids | Moderate | Apr, May, Jun, Jul, Aug, Sep |
| Japanese beetles | High | Jun, Jul, Aug |
| Squash vine borers | Moderate | Jun, Jul |
| Tomato hornworms | Moderate | Jun, Jul, Aug |
| Cucumber beetles | Low | May, Jun, Jul |
| Stink bugs | Moderate | Jun, Jul, Aug, Sep |
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
Cover Crops for Rolla
Cover crops protect bare soil, fix nitrogen, suppress weeds, and improve soil structure — with planting dates calibrated for your area.
Why it matters: The "chop and drop" approach to cover crops: cut them down right before flowering, let them lay on the surface as mulch, plant your vegetables through the mulch. Less work, healthier soil.
Spring Cover Crops (3 options) — Build soil before the main growing season
| Crop | Plant By | Terminate | N-Fixing | Soil Benefit |
|---|---|---|---|---|
| Buckwheat | Apr 14 | Aug 29 | — | Rapid growth, attracts pollinators, suppresses weeds |
| Sorghum-sudan grass | Apr 20 | Aug 22 | — | Massive biomass, breaks compaction, suppresses nematodes |
| White clover | Mar 14 | Aug 29 | ✓ 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 | Apr 23 | Sep 26 | — | 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 17 | Mar 26 | ✓ Yes | Fixes nitrogen, good for heavy clay soils |
| Crimson clover | Aug 12 | Mar 19 | ✓ Yes | Fixes nitrogen, attracts pollinators in spring |
| Daikon radish | Sep 13 | Mar 19 | — | Deep taproot breaks compaction, excellent for clay soils |
| Hairy vetch | Aug 6 | Mar 26 | ✓ Yes | Excellent nitrogen fixer, good for depleted soils |
| Oats | Sep 28 | Mar 26 | — | Quick biomass, winterkills in cold zones — no spring tillage needed |
| Winter rye | Jul 20 | Mar 19 | — | Suppresses weeds, prevents erosion, breaks up compacted soil |
| Winter wheat | Jul 22 | Mar 26 | — | Erosion control, weed suppression, good biomass |
Wind & Microclimate in Rolla
Why this matters: Light wind is good (strengthens stems, aids pollination); strong wind is bad (snaps stems, dries leaves, scatters seeds). Rolla averages 9.0 mph. If you garden near coast, ridge, or open plains, you're likely above that — plan for it.
Wind dries soil, stresses plants, and affects frost patterns. Understanding your exposure helps with garden placement.
Seasonal Wind Speed
Spring: 11 mph Summer: 10 mph
Fall: 10 mph Winter: 13 mph
Prevailing wind: SW. Moderate wind — consider a temporary windbreak for young seedlings.
Windbreak Benefit
5.4/10
Moderately beneficial — a simple fence or trellis can protect delicate crops from wind stress.
Frost Pocket Risk
Low
Relatively flat terrain (130 ft range). Frost pocket risk is minimal — garden placement is flexible.
Rainwater Harvesting in Rolla
How much water you can collect, when to collect it, and what size system you need for your garden.
What this means for you: Building a rainwater system is mostly about doing the math: roof area × annual rainfall × 0.6 = gallons you could realistically capture. For Rolla, that's your 43" times your roof.
Annual Collection
20,284 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 1,500 gal tank.
Legal Status
Unrestricted
Rainwater harvesting is fully legal in your state with no restrictions.
Best Collection Months
May, Jun, Jul, Aug
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 40.7 inches of rain per year
- A 1,000 sq ft roof can collect roughly 20,284 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 Rolla
107 vegetables matched to Zone 6b with planting dates calibrated for Rolla.
Show all 107 vegetables with dates
| Plant | Start Indoors | Direct Sow | Transplant | Fall Plant | Harvest | Days to Maturity |
|---|---|---|---|---|---|---|
| Acorn Squash | Mar 5 | Apr 16 | Apr 23 | — | Jul 16 – Aug 20 | 80–100 |
| Amaranth | Feb 12 | Apr 16 | Apr 23 | — | Jul 23 – Sep 10 | 90–120 |
| Arugula | Mar 5 | Mar 26 | Apr 9 | Aug 15 | May 14 – Jul 16 | 30–50 |
| Asparagus | — | — | Apr 23 | — | — | 730–1095 |
| Beets | — | Mar 26 | — | Aug 15 | May 21 – Jun 18 | 50–70 |
| Belgian Endive | Mar 5 | Mar 26 | Apr 9 | Aug 15 | Jul 30 – Sep 24 | 110–150 |
| Bitter Melon | Feb 12 | Apr 16 | Apr 23 | — | Jun 25 – Aug 6 | 60–90 |
| Black Beans | — | Apr 16 | — | — | Jul 16 – Sep 3 | 90–120 |
| Bok Choy | Mar 5 | Mar 26 | Apr 9 | Aug 15 | May 21 – Jun 25 | 40–60 |
| Broccoli | Mar 5 | Mar 26 | Apr 9 | Aug 15 | Jun 11 – Jul 23 | 60–90 |
| Broccoli Rabe | Mar 5 | Mar 26 | Apr 9 | Aug 15 | May 21 – Jun 25 | 40–60 |
| Brussels Sprouts | Mar 5 | Mar 26 | Apr 9 | Aug 15 | Jul 9 – Sep 3 | 90–130 |
| Butternut Squash | Mar 5 | Apr 16 | Apr 23 | — | Jul 23 – Aug 27 | 85–110 |
| Cabbage | Mar 5 | Mar 26 | Apr 9 | Aug 15 | Jun 11 – Aug 6 | 60–100 |
| Calabash | Feb 12 | Apr 16 | Apr 23 | — | Jul 16 – Sep 10 | 80–120 |
| Carrots | — | Mar 26 | — | Aug 15 | May 28 – Jul 2 | 60–80 |
| Cauliflower | Mar 5 | Mar 26 | Apr 9 | Aug 15 | Jun 4 – Aug 6 | 55–100 |
| Celeriac | Mar 5 | Mar 26 | Apr 9 | Aug 15 | Jul 23 – Aug 27 | 100–120 |
| Celery | Mar 5 | Mar 26 | Apr 9 | Aug 15 | Jul 2 – Aug 27 | 80–120 |
| Celtuce | Mar 5 | Mar 26 | Apr 9 | Aug 15 | Jun 11 – Jul 23 | 60–90 |
| Chard | Mar 5 | Mar 26 | Apr 9 | Aug 15 | Jun 4 – Jul 23 | 50–60 |
| Chickpeas | Mar 5 | Mar 26 | Apr 9 | Aug 15 | Jul 2 – Aug 13 | 80–110 |
| Chicory | Mar 5 | Mar 26 | Apr 9 | Aug 15 | Jun 11 – Jul 23 | 60–85 |
| Chinese Cabbage | Mar 5 | Mar 26 | Apr 9 | Aug 15 | Jun 4 – Jul 2 | 50–70 |
| Christmas Lima Beans | Feb 12 | Apr 16 | Apr 23 | — | Jul 16 – Aug 20 | 80–100 |
| Collard Greens | Mar 5 | Mar 26 | Apr 9 | Aug 15 | Jun 4 – Aug 6 | 55–75 |
| Corn | — | Apr 16 | — | — | Jun 18 – Aug 13 | 60–100 |
| Cowpeas | — | Apr 16 | — | — | Jun 18 – Jul 30 | 60–90 |
| Cress | Mar 5 | Mar 26 | Apr 9 | Aug 15 | Apr 23 – May 14 | 14–21 |
| Crookneck Squash | Mar 5 | Apr 16 | Apr 23 | — | Jun 11 – Jul 9 | 45–60 |
| Crosne | — | Mar 26 | — | Aug 15 | Aug 27 – Oct 8 | 150–200 |
| Cucumber | Mar 5 | Apr 16 | Apr 23 | — | Jun 18 – Aug 13 | 50–70 |
| Daikon | — | Mar 26 | — | Aug 15 | May 21 – Jun 18 | 50–70 |
| Delicata Squash | Mar 5 | Apr 16 | Apr 23 | — | Jul 16 – Aug 20 | 80–100 |
| Edamame | — | Apr 16 | — | — | Jul 2 – Aug 13 | 75–100 |
| Eggplant | Jan 29 | Apr 16 | Apr 23 | — | Jul 2 – Sep 3 | 65–85 |
| Endive | Mar 5 | Mar 26 | Apr 9 | Aug 15 | May 28 – Jul 2 | 45–65 |
| Escarole | Mar 5 | Mar 26 | Apr 9 | Aug 15 | Jun 4 – Jul 2 | 50–70 |
| Fava Beans | Mar 5 | Mar 26 | Apr 9 | Aug 15 | Jun 25 – Aug 6 | 75–100 |
| Fennel | Feb 12 | Apr 16 | Apr 23 | — | Jun 25 – Aug 6 | 60–90 |
| Garlic | — | — | — | Sep 12 | Dec 12 – Mar 27 | 90–240 |
| Green Beans | — | Apr 16 | — | — | Jun 11 – Aug 6 | 50–65 |
| Horseradish | — | — | Apr 23 | — | Aug 27 – Nov 5 | 120–180 |
| Hot Peppers | Jan 29 | Apr 16 | Apr 23 | — | Jul 2 – Oct 8 | 70–120 |
| Hubbard Squash | Mar 5 | Apr 16 | Apr 23 | — | Aug 6 – Sep 10 | 100–120 |
| Kabocha | Mar 5 | Apr 16 | Apr 23 | — | Jul 23 – Aug 20 | 85–100 |
| Kai Lan | Mar 5 | Mar 26 | Apr 9 | Aug 15 | May 28 – Jun 25 | 45–60 |
| Kale | Mar 5 | Mar 26 | Apr 9 | Aug 15 | Jun 4 – Jul 30 | 50–70 |
| Kidney Beans | — | Apr 16 | — | — | Jul 16 – Aug 20 | 85–110 |
| Kohlrabi | Mar 5 | Mar 26 | Apr 9 | Aug 15 | May 28 – Jul 2 | 45–65 |
| Komatsuna | Mar 5 | Mar 26 | Apr 9 | Aug 15 | May 14 – Jun 18 | 35–50 |
| Leeks | Mar 5 | Mar 26 | Apr 9 | Aug 15 | Jul 9 – Sep 24 | 90–150 |
| Lentils | Mar 5 | Mar 26 | Apr 9 | Aug 15 | Jul 2 – Aug 13 | 80–110 |
| Lettuce | Mar 5 | Mar 26 | Apr 9 | Aug 15 | May 14 – Jul 23 | 30–60 |
| Lima Beans | — | Apr 16 | — | — | Jun 18 – Jul 30 | 60–90 |
| Loofah | Feb 12 | Apr 16 | Apr 23 | — | Aug 6 – Oct 8 | 100–150 |
| Luffa | Feb 12 | Apr 16 | Apr 23 | — | Jul 23 – Oct 8 | 90–150 |
| Mache | Mar 5 | Mar 26 | Apr 9 | Aug 15 | May 21 – Jun 25 | 40–60 |
| Melon | Mar 5 | Apr 16 | Apr 23 | — | Jul 2 – Aug 20 | 70–100 |
| Microgreens | Mar 5 | Mar 26 | Apr 9 | Aug 15 | Apr 16 – May 14 | 7–21 |
| Mitsuba | Mar 5 | Mar 26 | Apr 2 | Aug 15 | May 28 – Jul 23 | 50–70 |
| Mizuna | Mar 5 | Mar 26 | Apr 9 | Aug 15 | May 14 – Jun 11 | 30–45 |
| Mustard Greens | Mar 5 | Mar 26 | Apr 9 | Aug 15 | May 14 – Jul 16 | 30–50 |
| Napa Cabbage | Mar 5 | Mar 26 | Apr 9 | Aug 15 | Jun 4 – Jul 9 | 55–75 |
| New Zealand Spinach | Feb 12 | Apr 16 | Apr 23 | — | Jun 18 – Jul 16 | 55–70 |
| Okra | Feb 12 | Apr 16 | Apr 23 | — | Jun 18 – Aug 13 | 50–65 |
| Onion | Mar 5 | Mar 26 | Apr 9 | Aug 15 | Jul 9 – Aug 27 | 90–120 |
| Pac Choi | Mar 5 | Mar 26 | Apr 9 | Aug 15 | May 21 – Jun 18 | 40–55 |
| Parsnip | — | Mar 26 | — | Aug 15 | Jul 9 – Aug 20 | 100–130 |
| Patty Pan Squash | Mar 5 | Apr 16 | Apr 23 | — | Jun 11 – Jul 9 | 45–60 |
| Peas | Mar 5 | Mar 26 | Apr 9 | Aug 15 | Jun 4 – Jul 30 | 55–70 |
| Peppers | Jan 29 | Apr 16 | Apr 23 | — | Jun 25 – Sep 3 | 60–90 |
| Pole Beans | Feb 12 | Apr 16 | Apr 23 | — | Jun 18 – Aug 13 | 55–70 |
| Potatoes | Feb 12 | Apr 16 | Apr 23 | — | Jul 2 – Sep 10 | 70–120 |
| Pumpkin | Mar 5 | Apr 16 | Apr 23 | — | Jul 23 – Sep 10 | 85–120 |
| Purslane | Mar 5 | Mar 26 | Apr 9 | Aug 15 | May 21 – Jun 25 | 40–60 |
| Radicchio | Mar 5 | Mar 26 | Apr 9 | Aug 15 | Jun 11 – Jul 16 | 60–80 |
| Radish | — | Mar 26 | — | Aug 15 | Apr 23 – May 14 | 22–35 |
| Rhubarb | — | — | Apr 30 | — | — | 365–730 |
| Romanesco | Mar 5 | Mar 26 | Apr 9 | Aug 15 | Jun 25 – Aug 6 | 75–100 |
| Rutabaga | — | Mar 26 | — | Aug 15 | Jun 18 – Jul 23 | 80–100 |
| Salsify | — | Mar 26 | — | Aug 15 | Jul 9 – Aug 20 | 100–130 |
| Savoy Cabbage | Mar 5 | Mar 26 | Apr 9 | Aug 15 | Jun 18 – Aug 13 | 70–110 |
| Scallions | Mar 5 | Mar 26 | Apr 9 | Aug 15 | Jun 4 – Jul 2 | 50–70 |
| Scarlet Runner Beans | Feb 12 | Apr 16 | Apr 23 | — | Jun 25 – Jul 30 | 60–80 |
| Shallot | Mar 5 | Mar 26 | Apr 9 | Aug 15 | Jul 9 – Aug 27 | 90–120 |
| Shiso | Feb 19 | Apr 16 | Apr 23 | — | Jun 18 – Aug 13 | 50–70 |
| Snap Peas | Feb 12 | Apr 16 | Apr 23 | — | Jun 18 – Aug 13 | 55–70 |
| Snow Peas | Mar 5 | Mar 26 | Apr 9 | Aug 15 | Jun 4 – Jul 30 | 50–65 |
| Soybeans | — | Apr 16 | — | — | Jul 9 – Sep 3 | 80–120 |
| Spaghetti Squash | Mar 5 | Apr 16 | Apr 23 | — | Jul 23 – Aug 20 | 85–100 |
| Spinach | Mar 5 | Mar 26 | Apr 9 | Aug 15 | May 14 – Jul 16 | 35–50 |
| Squash (Summer) | Mar 5 | Apr 16 | Apr 23 | — | Jun 11 – Aug 13 | 45–65 |
| Squash (Winter) | Mar 5 | Apr 16 | Apr 23 | — | Jul 16 – Sep 10 | 80–120 |
| Sunchoke | — | — | Apr 23 | — | Aug 13 – Oct 8 | 110–150 |
| Sweet Corn | — | Apr 16 | — | — | Jun 18 – Jul 30 | 60–90 |
| Sweet Potatoes | Feb 12 | Apr 16 | Apr 23 | — | Jul 23 – Sep 10 | 90–120 |
| Tatsoi | Mar 5 | Mar 26 | Apr 9 | Aug 15 | May 14 – Jun 18 | 35–50 |
| Tomatillo | Feb 12 | Apr 16 | Apr 23 | — | Jun 25 – Sep 3 | 60–85 |
| Tomatoes | Feb 12 | Apr 16 | Apr 23 | — | Jun 25 – Sep 3 | 60–85 |
| Turnip | — | Mar 26 | — | Aug 15 | May 7 – Jun 11 | 40–60 |
| Watercress | Mar 5 | Mar 26 | Apr 9 | Aug 15 | May 21 – Jun 25 | 40–60 |
| Watermelon | Mar 5 | Apr 16 | Apr 23 | — | Jul 2 – Aug 20 | 70–100 |
| Wax Beans | — | Apr 16 | — | — | Jun 11 – Aug 6 | 50–65 |
| Winter Melon | Feb 12 | Apr 16 | Apr 23 | — | Jul 23 – Sep 10 | 90–120 |
| Yard Long Beans | Feb 12 | Apr 16 | Apr 23 | — | Jun 18 – Jul 30 | 55–80 |
| Zucchini | Mar 5 | Apr 16 | Apr 23 | — | Jun 11 – Aug 6 | 45–60 |
🍓 Fruits to Grow in Rolla
27 fruits matched to Zone 6b with planting dates calibrated for Rolla.
Show all 27 fruits with dates
| Plant | Start Indoors | Direct Sow | Transplant | Fall Plant | Harvest | Days to Maturity |
|---|---|---|---|---|---|---|
| Alpine Strawberries | — | — | Apr 30 | — | Jul 30 – Nov 12 | 90–180 |
| Aronia | — | — | Apr 30 | — | — | 730–1095 |
| Blackberries | — | — | Apr 30 | — | — | 365–730 |
| Blueberries | — | — | Apr 30 | — | — | 730–1095 |
| Boysenberries | — | — | Apr 30 | — | — | 365–730 |
| Cantaloupe | — | — | Apr 30 | — | Jul 9 – Aug 13 | 70–90 |
| Che Fruit | — | — | Apr 30 | — | — | 1095–1825 |
| Cranberries | — | — | Apr 30 | — | — | 730–1095 |
| Currants | — | — | Apr 30 | — | — | 730–1095 |
| Elderberries | — | — | Apr 30 | — | — | 730–1095 |
| Goji Berries | — | — | Apr 30 | — | — | 730–1095 |
| Gooseberries | — | — | Apr 30 | — | — | 730–1095 |
| Grapes | — | — | Apr 30 | — | — | 730–1095 |
| Ground Cherry | — | — | Apr 30 | — | Jul 9 – Sep 3 | 65–80 |
| Hardy Kiwi | — | — | Apr 30 | — | — | 1095–1825 |
| Haskaps | — | — | Apr 30 | — | — | 730–1095 |
| Honeydew | — | — | Apr 30 | — | Jul 23 – Sep 3 | 80–110 |
| Jostaberry | — | — | Apr 30 | — | — | 730–1095 |
| Lingonberries | — | — | Apr 30 | — | — | 730–1095 |
| Medlar | — | — | Apr 30 | — | — | 1095–1825 |
| Mulberries | — | — | Apr 30 | — | — | 730–1825 |
| Pawpaw | — | — | Apr 30 | — | — | 1095–2555 |
| Persimmon | — | — | Apr 30 | — | — | 1095–2555 |
| Quince | — | — | Apr 30 | — | — | 1095–1825 |
| Raspberries | — | — | Apr 30 | — | — | 365–730 |
| Serviceberries | — | — | Apr 30 | — | — | 730–1095 |
| Strawberries | — | — | Apr 30 | — | Jul 30 – Nov 12 | 90–365 |
🌿 Herbs to Grow in Rolla
35 herbs matched to Zone 6b with planting dates calibrated for Rolla.
Show all 35 herbs with dates
| Plant | Start Indoors | Direct Sow | Transplant | Fall Plant | Harvest | Days to Maturity |
|---|---|---|---|---|---|---|
| Angelica | Mar 5 | Mar 26 | Apr 2 | Aug 15 | — | 365–730 |
| Anise | Mar 5 | Mar 26 | Apr 2 | Aug 15 | Jul 2 – Sep 17 | 90–120 |
| Basil | Feb 19 | Apr 16 | Apr 23 | — | Jun 18 – Aug 20 | 50–75 |
| Bee Balm | — | — | Apr 16 | — | Jul 16 – Oct 1 | 90–120 |
| Borage | Mar 5 | Mar 26 | Apr 2 | Aug 15 | May 28 – Jul 16 | 50–60 |
| Caraway | Mar 5 | Mar 26 | Apr 2 | Aug 15 | — | 365–450 |
| Catnip | — | — | Apr 16 | — | Jun 18 – Aug 20 | 60–80 |
| Chamomile | Mar 5 | Mar 26 | Apr 2 | Aug 15 | Jun 4 – Aug 13 | 60–90 |
| Chervil | Mar 5 | Mar 26 | Apr 2 | Aug 15 | May 14 – Jul 16 | 40–60 |
| Chives | — | — | Apr 16 | — | Jun 18 – Aug 27 | 60–90 |
| Cilantro | Mar 5 | Mar 26 | Apr 2 | Aug 15 | May 14 – Jul 16 | 40–60 |
| Comfrey | — | — | Apr 16 | — | Jun 18 – Aug 27 | 60–90 |
| Cumin | Mar 5 | Mar 26 | Apr 2 | Aug 15 | Jul 16 – Sep 17 | 100–120 |
| Dill | Mar 5 | Mar 26 | Apr 2 | Aug 15 | May 14 – Jul 16 | 40–60 |
| Epazote | Feb 19 | Apr 16 | Apr 23 | — | Jun 11 – Aug 6 | 45–60 |
| Fennel (herb) | Mar 5 | Mar 26 | Apr 2 | Aug 15 | Jun 4 – Aug 13 | 60–90 |
| Feverfew | — | — | Apr 16 | — | Jul 16 – Oct 1 | 90–120 |
| Garlic Chives | — | — | Apr 16 | — | Jun 18 – Aug 27 | 60–90 |
| Horehound | — | — | Apr 16 | — | Jul 2 – Aug 27 | 75–90 |
| Hyssop | — | — | Apr 16 | — | Jun 25 – Aug 27 | 70–90 |
| Lemon Balm | — | — | Apr 16 | — | Jun 18 – Aug 6 | 60–70 |
| Lemon Thyme | — | — | Apr 16 | — | Jun 25 – Aug 27 | 70–90 |
| Lovage | — | — | Apr 16 | — | Jun 25 – Aug 27 | 70–90 |
| Marjoram | — | — | Apr 16 | — | Jun 18 – Aug 27 | 60–90 |
| Mint | — | — | Apr 16 | — | Jun 18 – Aug 27 | 60–90 |
| Oregano | — | — | Apr 16 | — | Jun 18 – Aug 27 | 60–90 |
| Parsley | Mar 5 | Mar 26 | Apr 2 | Aug 15 | Jun 4 – Aug 6 | 60–80 |
| Rue | — | — | Apr 16 | — | Jun 25 – Aug 27 | 70–90 |
| Sage | — | — | Apr 16 | — | Jul 2 – Aug 27 | 75–90 |
| Savory | — | — | Apr 16 | — | Jun 11 – Aug 6 | 50–70 |
| Sorrel | Mar 5 | Mar 26 | Apr 2 | Aug 15 | May 14 – Jul 16 | 40–60 |
| Tarragon | — | — | Apr 16 | — | Jun 18 – Aug 27 | 60–90 |
| Thai Basil | Feb 19 | Apr 16 | Apr 23 | — | Jun 18 – Aug 20 | 50–75 |
| Thyme | — | — | Apr 16 | — | Jun 25 – Aug 27 | 70–90 |
| Valerian | — | — | Apr 16 | — | Aug 20 – Oct 29 | 120–180 |
🌸 Flowers to Grow in Rolla
53 flowers matched to Zone 6b with planting dates calibrated for Rolla.
Show all 53 flowers with dates
| Plant | Start Indoors | Direct Sow | Transplant | Fall Plant | Bloom | Days to Maturity |
|---|---|---|---|---|---|---|
| Ageratum | Feb 19 | Apr 9 | Apr 9 | — | Jun 4 – Sep 17 | 60–75 |
| Alliums | — | — | — | Sep 12 | Oct 10 – Nov 7 | 28–42 |
| Anemones | Mar 12 | — | Apr 9 | — | May 7 – Jun 4 | 90–120 |
| Astilbe | Feb 5 | — | Apr 16 | — | Jun 25 – Sep 3 | 70–100 |
| Bachelor's Button | Feb 26 | Mar 12 | Apr 9 | Sep 12 | Jun 11 – Sep 3 | 60–90 |
| Begonias | Jan 29 | — | Apr 16 | — | Jun 25 – Oct 1 | 70–90 |
| Black-eyed Susan | Feb 5 | Apr 9 | Apr 16 | — | Jul 2 – Oct 22 | 60–80 |
| Bleeding Hearts | Feb 5 | — | Apr 16 | — | Jun 11 – Jul 16 | 60–90 |
| Calendula | Feb 26 | Mar 12 | Apr 9 | — | May 28 – Sep 3 | 50–70 |
| California Poppy | — | Mar 12 | — | — | May 21 – Jul 16 | 60–90 |
| Celosia | Mar 5 | Apr 16 | Apr 16 | — | Jun 18 – Oct 8 | 60–90 |
| Columbine | Feb 5 | Apr 16 | Apr 16 | — | Jun 11 – Jul 16 | 70–100 |
| Coreopsis | Feb 5 | Apr 9 | Apr 16 | — | Jun 25 – Oct 22 | 60–80 |
| Cosmos | Mar 12 | Apr 9 | Apr 9 | — | Jun 18 – Oct 1 | 60–90 |
| Crocus | — | — | — | Sep 12 | Aug 1 – Aug 22 | 10–20 |
| Daffodils | — | — | — | Sep 12 | Aug 8 – Aug 29 | 20–40 |
| Dahlias | Mar 12 | Apr 16 | Apr 16 | — | Jul 2 – Oct 22 | 70–120 |
| Daylily | Feb 5 | — | Apr 16 | — | Jul 2 – Oct 22 | 60–90 |
| Dianthus | Feb 12 | Mar 12 | Mar 19 | — | May 7 – Aug 6 | 60–80 |
| Echinacea (Purple Coneflower) | Feb 5 | Apr 16 | Apr 16 | — | Jul 2 – Oct 22 | 70–90 |
| Foxglove | Feb 5 | Apr 16 | Apr 16 | — | Jun 11 – Jul 16 | 80–120 |
| Gaillardia (Blanket Flower) | Feb 19 | Apr 16 | Apr 16 | — | Jun 25 – Oct 29 | 70–100 |
| Geraniums | Jan 29 | — | Apr 16 | — | Jun 25 – Oct 1 | 70–100 |
| Gladiolus | — | Apr 9 | Apr 9 | — | Jun 25 – Oct 15 | 70–100 |
| Hostas | Jan 29 | — | Apr 16 | — | Jul 2 – Oct 22 | 60–90 |
| Hyacinths | — | — | — | Sep 12 | Aug 29 – Sep 19 | 14–28 |
| Hydrangeas | Jan 29 | — | Apr 16 | — | Jun 25 – Oct 8 | 90–150 |
| Impatiens | Feb 12 | — | Apr 16 | — | Jun 25 – Oct 8 | 60–75 |
| Irises | — | Division | Apr 16 | — | Jun 11 – Jul 9 | 60–100 |
| Larkspur | — | Mar 12 | — | — | May 21 – Jul 16 | 60–90 |
| Lavender | Jan 29 | — | Apr 23 | — | Jul 2 – Aug 27 | 90–120 |
| Lilies | — | Division | Apr 16 | — | Jun 25 – Oct 1 | 70–120 |
| Lobelia | Feb 5 | — | Mar 26 | — | May 21 – Aug 13 | 70–80 |
| Lupine | Feb 5 | Apr 16 | Apr 16 | — | Jun 11 – Jul 16 | 75–100 |
| Marigolds | Feb 26 | Apr 9 | Apr 9 | — | Jun 4 – Sep 10 | 50–70 |
| Nasturtium | Mar 12 | Apr 9 | Apr 9 | — | Jun 4 – Oct 1 | 55–65 |
| Pansy | Jan 29 | — | Apr 9 | Aug 29 | Jun 4 – Aug 13 | 70–90 |
| Peonies | — | Division | Apr 16 | — | Jun 18 – Jul 23 | 90–120 |
| Petunia | Feb 12 | — | Apr 16 | — | Jun 25 – Oct 8 | 70–90 |
| Phlox | Feb 5 | Apr 16 | Apr 16 | — | Jun 25 – Sep 17 | 80–110 |
| Portulaca | Mar 5 | Apr 16 | Apr 16 | — | Jun 4 – Sep 24 | 50–70 |
| Ranunculus | Feb 26 | — | Apr 9 | — | May 14 – Jun 11 | 90–120 |
| Roses | Jan 29 | — | Apr 16 | — | Jun 25 – Oct 22 | 90–180 |
| Salvia | Feb 5 | — | Apr 9 | — | Jun 18 – Oct 1 | 70–90 |
| Sedum (Stonecrop) | Feb 5 | — | Apr 16 | — | Aug 6 – Oct 29 | 60–90 |
| Snapdragon | Jan 29 | Mar 19 | Apr 9 | — | Jun 18 – Sep 3 | 70–100 |
| Sunflower | Mar 19 | Apr 9 | Apr 9 | — | Jul 2 – Oct 1 | 70–100 |
| Sweet Alyssum | Feb 26 | Mar 19 | Apr 9 | — | May 21 – Aug 6 | 45–60 |
| Sweet Pea | Feb 26 | Mar 5 | Apr 9 | — | Jun 25 – Sep 3 | 65–85 |
| Tulips | — | — | — | Sep 19 | Aug 29 – Sep 26 | 15–30 |
| Vinca (Annual) | Jan 29 | — | Apr 16 | — | Jun 25 – Oct 8 | 70–90 |
| Yarrow | Feb 5 | Apr 9 | Apr 16 | — | Jun 25 – Oct 22 | 60–90 |
| Zinnia | Mar 12 | Apr 9 | Apr 9 | — | Jun 18 – Sep 24 | 60–70 |
Monthly Planting Guide for Rolla
ZIP Codes in Rolla
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 Phelps County.
Your Phelps County Garden Planner — Free
A 22-page printable planner built for Phelps County (Zone 6b). 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