Sinclair, ME — Planting Guide for June
Free PDF, personalized for your town's frost dates & climate. Drop your email — we'll send the link.
Your June planting checklist for Aroostook County, Maine
Each item below is timed to Aroostook County, Maine's frost dates and soil temperatures. Skip nothing, stress about nothing.
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Time to transplant basil, cucumber, and peppers
Bring a watering can to the bed. Each transplant gets a drink the moment it's in the ground, not ten minutes later.
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Plant cucumber, green beans, and peppers from seed, right in the garden
Succession planting is the secret here. Put in a row now, another in 2 weeks, a third in 4.
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Fire up the seed-starting tray: cucumber, kale, and lettuce
Your window is short. These crops want several weeks of indoor growth before they go outside.
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It's harvest week for lettuce, radish, and arugula
If you can't use it all right away, check the food-preservation section of your planner.
Before July arrives, get these ready
- Starting indoors: basil, pole beans, and thai basil
- First harvests: carrots, green beans, and kale
- Fall sowing: carrots, kale, and lettuce
Sinclair sits in Zone 4a — a short, intense growing season. Your last spring frost lands around May 18 and the first fall frost arrives by September 24, giving you roughly 129 frost-free days. Start warm-season crops indoors weeks before the calendar tells you to, prioritize cold-hardy varieties, and use row covers, cold frames, or low tunnels to stretch fall harvests deep into autumn. Brassicas, root crops, and short-season tomatoes are your reliable winners.
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 (10.3 weeks/year on average). Mulching and drip irrigation pay for themselves quickly.
🌡️ USDA Zone
4a (-30°F to -25°F min)
❄️ Avg. Last Frost
May 18
🍂 Avg. First Frost
September 24
📅 Growing Season
129 days
🌧️ Climate
Moderate 22.3" annual
💨 Wind
Moderate 9.3 mph avg
🥶 Frost Tier
Regular 0% frost-free years
🏜️ Drought
10.3 wk/yr trend stable
📍 ZIP Codes
1 ZIP
Monthly Watering Calendar for Sinclair
When you'll need to water your garden — based on average monthly rainfall vs. the ~1 inch/week most gardens need.
Why this matters: Over-watering kills more plants than under-watering. Sinclair's 22" annual rainfall changes the gardening playbook — humid-region gardeners often water by the calendar when they should water by the soil moisture.
View detailed monthly data
| Month | Avg Rainfall | Rainy Days | Extra Water Needed | Watering Effort |
|---|---|---|---|---|
| Jan | 2.8 in | 9 days | — | None |
| Feb | 2.7 in | 10 days | — | None |
| Mar | 3.3 in | 11 days | — | None |
| Apr | 3.5 in | 9 days | — | None |
| May | 3.3 in | 12 days | 1 in | Moderate |
| Jun | 3.7 in | 10 days | 0.6 in | Moderate |
| Jul | 3.6 in | 9 days | 0.7 in | Moderate |
| Aug | 3.6 in | 10 days | 0.7 in | Moderate |
| Sep | 3.9 in | 8 days | 0.4 in | Low |
| Oct | 3.2 in | 9 days | — | None |
| Nov | 2.9 in | 9 days | — | None |
| Dec | 3 in | 12 days | — | None |
Annual total: 39.5 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.
Sinclair Soil Profile
Soil Type
Silt Loam
Soil pH
4.9-6.3
Drainage
Well Drained
Frost Risk Probability
Based on 31 years of NOAA weather station data from 2 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 1 | Oct 5 | 126 days |
| Cautious | May 23 | Sep 30 | 130 days |
| Average year | May 18 | Sep 24 | 129 days |
| Optimistic | May 12 | Sep 18 | 129 days |
| Aggressive (risky) | May 6 | Sep 14 | 131 days |
Not very — frost dates can vary by ±26 days year-to-year. Use the "Conservative" row in the table below, and keep row covers handy for surprise late frosts.
Gardening Difficulty Score
Aroostook County offers good growing conditions. A little planning around frost dates goes a long way.
Local Gardening Help in Aroostook 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 Aroostook County's climate and soil.
County Extension Office
Aroostook County University of Maine Cooperative Extension Extension Office
Phone: 207-581-3188
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 Aroostook County
Finding local nurseries & garden centers in Aroostook County
Why Buy Local
Local nurseries carry plants that are proven to grow in your area. Staff can give you advice specific to Aroostook 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 Aroostook County ME" or "garden center Aroostook 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 Aroostook County ME" or check your extension office and local parks department. Facebook groups like "Aroostook County Gardeners" or "Maine 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 Sinclair
Monthly daylight hours and peak sun — critical for onion varieties, photoperiod-sensitive plants, and solar garden planning.
The practical takeaway: Onion varieties are sold by "short-day," "intermediate-day," and "long-day." Sinclair's latitude determines which to buy — and getting it wrong is the difference between baseball-sized bulbs and marbles.
Longest Day
15.6 hours
Summer solstice daylight
Shortest Day
8.4 hours
Winter solstice daylight
Peak Sun Hours
8.8 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 | 8.8 hr | 3.3 hr | Short day |
| February | 10.1 hr | 4.1 hr | Short day |
| March | 11.6 hr | 5.2 hr | Short day |
| April | 13.3 hr | 6.6 hr | Neutral |
| May | 14.8 hr | 7.6 hr | Long day |
| June | 15.6 hr | 8.7 hr | Long day |
| July | 15.3 hr | 8.8 hr | Long day |
| August | 14 hr | 7.5 hr | Long day |
| September | 12.3 hr | 6.1 hr | Neutral |
| October | 10.6 hr | 5.2 hr | Short day |
| November | 9.1 hr | 3.4 hr | Short day |
| December | 8.4 hr | 2.9 hr | Short day |
Peak sun hours factor in typical cloud cover — use these for solar panel and shade-planning calculations.
Soil Temperature & Composting in Sinclair
Monthly soil temps tell you when to plant warm-season crops, and when your compost pile is actively working.
The practical takeaway: Lettuce germinates at 35°F. Beans want 60°F. Tomatoes 65°F+. Soil temp, not air temp, is what plants feel. Sinclair'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 Jun through Sep.
Best Month to Compost
Jul
Microbial activity peaks when soil is warm.
Active Composting
4 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 | 7°F | 16°F | ❄️ Dormant | ~36 weeks |
| Feb | 8°F | 17°F | ❄️ Dormant | ~36 weeks |
| Mar | 19°F | 22°F | ❄️ Dormant | ~36 weeks |
| Apr | 36°F | 33°F | ❄️ Dormant | ~36 weeks |
| May | 49°F | 47°F | 🐢 Slow | ~24 weeks |
| Jun | 61°F | 56°F | ♻️ Active | ~14 weeks |
| Jul | 67°F | 62°F | 🔥 Peak | ~8 weeks |
| Aug | 69°F | 65°F | 🔥 Peak | ~8 weeks |
| Sep | 62°F | 59°F | ♻️ Active | ~14 weeks |
| Oct | 46°F | 50°F | 🐢 Slow | ~24 weeks |
| Nov | 31°F | 37°F | ❄️ Dormant | ~36 weeks |
| Dec | 16°F | 27°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 Sinclair
Computed from local climate patterns — warmer, humid conditions increase pest generations and fungal disease risk.
For new gardeners: The most successful gardeners in high-pressure regions don't spray more — they design around the problem. Crop rotation, companion planting, and resistant varieties beat reactive spraying.
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 3 common pests in your area
| Pest | Risk Level | Peak Months |
|---|---|---|
| Aphids | Low | Jun, Jul, Aug |
| Cabbage worms | Moderate | Jun, Jul, Aug |
| Slugs | Moderate | May, Jun, 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
Cover Crops for Sinclair
Cover crops protect bare soil, fix nitrogen, suppress weeds, and improve soil structure — with planting dates calibrated for your area.
Why it matters: Cover crops protect microbial life through winter and summer. Bare soil bakes; covered soil stays cooler, moister, and biologically active. The difference shows up in next year's crops.
Spring Cover Crops (2 options) — Build soil before the main growing season
| Crop | Plant By | Terminate | N-Fixing | Soil Benefit |
|---|---|---|---|---|
| Buckwheat | May 21 | Jul 30 | — | Rapid growth, attracts pollinators, suppresses weeds |
| White clover | Apr 17 | Jul 30 | ✓ 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 | Jun 11 | Sep 3 | — | Deep roots break compaction, attract pollinators and beneficial insects |
Fall Cover Crops (3 options) — Plant after harvest to protect soil over winter
| Crop | Plant By | Terminate | N-Fixing | Soil Benefit |
|---|---|---|---|---|
| Oats | Aug 12 | Apr 27 | — | Quick biomass, winterkills in cold zones — no spring tillage needed |
| Winter rye | Jul 1 | May 4 | — | Suppresses weeds, prevents erosion, breaks up compacted soil |
| Winter wheat | Jun 22 | Apr 27 | — | Erosion control, weed suppression, good biomass |
Wind & Microclimate in Sinclair
Quick context: A 10 mph wind doesn't feel like much, but it triples leaf transpiration vs. still air. Sinclair's 9.3 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: 14 mph Summer: 10 mph
Fall: 11 mph Winter: 17 mph
Prevailing wind: W. Windy area — plant a windbreak hedge on the W side of your garden.
Windbreak Benefit
6.8/10
Moderately beneficial — a simple fence or trellis can protect delicate crops from wind stress.
Frost Pocket Risk
Low
Relatively flat terrain (280 ft range). Frost pocket risk is minimal — garden placement is flexible.
Rainwater Harvesting in Sinclair
How much water you can collect, when to collect it, and what size system you need for your garden.
Why it matters: A gravity-fed rain barrel ($75) is the easy entry. A larger cistern ($500-1500) covers a whole growing season. Sinclair's 22" annual rainfall determines whether the larger system is overkill or essential.
Annual Collection
19,686 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
Jun, Jul, Aug, Sep
Highest rainfall months — your barrels will fill up quickly during these months.
Months to Draw From Storage
Jan, Feb, Nov
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 39.5 inches of rain per year
- A 1,000 sq ft roof can collect roughly 19,686 gallons annually
- Rainwater harvesting is fully legal in your state
- Stock up on stored water before your dry season (Jan, Feb, Nov)
- Use a first-flush diverter to keep roof debris out of your collection
🥬 Vegetables to Grow in Sinclair
95 vegetables matched to Zone 4a with planting dates calibrated for Sinclair.
Show all 95 vegetables with dates
| Plant | Start Indoors | Direct Sow | Transplant | Fall Plant | Harvest | Days to Maturity |
|---|---|---|---|---|---|---|
| Acorn Squash | Apr 6 | Jun 1 | Jun 8 | — | Aug 31 – Oct 5 | 80–100 |
| Amaranth | Mar 16 | Jun 1 | Jun 8 | — | Sep 7 – Oct 26 | 90–120 |
| Arugula | Apr 6 | May 11 | May 18 | Jul 2 | Jun 22 – Aug 24 | 30–50 |
| Asparagus | — | — | Jun 1 | — | — | 730–1095 |
| Beets | — | May 11 | — | Jul 2 | Jul 6 – Aug 3 | 50–70 |
| Belgian Endive | Apr 6 | May 11 | May 18 | Jul 2 | Sep 7 – Oct 12 | 110–150 |
| Black Beans | — | Jun 1 | — | — | Aug 31 – Oct 19 | 90–120 |
| Bok Choy | Apr 6 | May 11 | May 18 | Jul 2 | Jun 29 – Aug 3 | 40–60 |
| Broccoli | Apr 6 | May 11 | May 18 | Jul 2 | Jul 20 – Aug 31 | 60–90 |
| Broccoli Rabe | Apr 6 | May 11 | May 18 | Jul 2 | Jun 29 – Aug 3 | 40–60 |
| Brussels Sprouts | Apr 6 | May 11 | May 18 | Jul 2 | Aug 17 – Oct 12 | 90–130 |
| Butternut Squash | Apr 6 | Jun 1 | Jun 8 | — | Sep 7 – Oct 12 | 85–110 |
| Cabbage | Apr 6 | May 11 | May 18 | Jul 2 | Jul 20 – Sep 14 | 60–100 |
| Carrots | — | May 11 | — | Jul 2 | Jul 13 – Aug 17 | 60–80 |
| Cauliflower | Apr 6 | May 11 | May 18 | Jul 2 | Jul 13 – Sep 14 | 55–100 |
| Celeriac | Apr 6 | May 11 | May 18 | Jul 2 | Aug 31 – Oct 5 | 100–120 |
| Celery | Apr 6 | May 11 | May 18 | Jul 2 | Aug 10 – Oct 5 | 80–120 |
| Celtuce | Apr 6 | May 11 | May 18 | Jul 2 | Jul 20 – Aug 31 | 60–90 |
| Chard | Apr 6 | May 11 | May 18 | Jul 2 | Jul 13 – Aug 31 | 50–60 |
| Chickpeas | Apr 6 | May 11 | May 18 | Jul 2 | Aug 10 – Sep 21 | 80–110 |
| Chicory | Apr 6 | May 11 | May 18 | Jul 2 | Jul 20 – Aug 31 | 60–85 |
| Chinese Cabbage | Apr 6 | May 11 | May 18 | Jul 2 | Jul 13 – Aug 10 | 50–70 |
| Christmas Lima Beans | Mar 16 | Jun 1 | Jun 8 | — | Aug 31 – Oct 5 | 80–100 |
| Collard Greens | Apr 6 | May 11 | May 18 | Jul 2 | Jul 13 – Sep 14 | 55–75 |
| Corn | — | Jun 1 | — | — | Aug 3 – Sep 28 | 60–100 |
| Cress | Apr 6 | May 11 | May 18 | Jul 2 | Jun 1 – Jun 22 | 14–21 |
| Crookneck Squash | Apr 6 | Jun 1 | Jun 8 | — | Jul 27 – Aug 24 | 45–60 |
| Crosne | — | May 11 | — | Jul 2 | Oct 12 – Oct 5 | 150–200 |
| Cucumber | Apr 6 | Jun 1 | Jun 8 | — | Aug 3 – Sep 28 | 50–70 |
| Daikon | — | May 11 | — | Jul 2 | Jul 6 – Aug 3 | 50–70 |
| Delicata Squash | Apr 6 | Jun 1 | Jun 8 | — | Aug 31 – Oct 5 | 80–100 |
| Edamame | — | Jun 1 | — | — | Aug 17 – Sep 28 | 75–100 |
| Endive | Apr 6 | May 11 | May 18 | Jul 2 | Jul 6 – Aug 10 | 45–65 |
| Escarole | Apr 6 | May 11 | May 18 | Jul 2 | Jul 13 – Aug 10 | 50–70 |
| Fava Beans | Apr 6 | May 11 | May 18 | Jul 2 | Aug 3 – Sep 14 | 75–100 |
| Fennel | Mar 16 | Jun 1 | Jun 8 | — | Aug 10 – Sep 21 | 60–90 |
| Garlic | — | — | — | Aug 13 | Nov 12 – Jan 7 | 90–240 |
| Green Beans | — | Jun 1 | — | — | Jul 27 – Sep 21 | 50–65 |
| Horseradish | — | — | Jun 1 | — | Oct 5 – Oct 26 | 120–180 |
| Hubbard Squash | Apr 6 | Jun 1 | Jun 8 | — | Sep 21 – Oct 26 | 100–120 |
| Kabocha | Apr 6 | Jun 1 | Jun 8 | — | Sep 7 – Oct 5 | 85–100 |
| Kai Lan | Apr 6 | May 11 | May 18 | Jul 2 | Jul 6 – Aug 3 | 45–60 |
| Kale | Apr 6 | May 11 | May 18 | Jul 2 | Jul 13 – Sep 7 | 50–70 |
| Kidney Beans | — | Jun 1 | — | — | Aug 31 – Oct 5 | 85–110 |
| Kohlrabi | Apr 6 | May 11 | May 18 | Jul 2 | Jul 6 – Aug 10 | 45–65 |
| Komatsuna | Apr 6 | May 11 | May 18 | Jul 2 | Jun 22 – Jul 27 | 35–50 |
| Leeks | Apr 6 | May 11 | May 18 | Jul 2 | Aug 17 – Oct 12 | 90–150 |
| Lentils | Apr 6 | May 11 | May 18 | Jul 2 | Aug 10 – Sep 21 | 80–110 |
| Lettuce | Apr 6 | May 11 | May 18 | Jul 2 | Jun 22 – Aug 31 | 30–60 |
| Lima Beans | — | Jun 1 | — | — | Aug 3 – Sep 14 | 60–90 |
| Mache | Apr 6 | May 11 | May 18 | Jul 2 | Jun 29 – Aug 3 | 40–60 |
| Melon | Apr 6 | Jun 1 | Jun 8 | — | Aug 17 – Oct 5 | 70–100 |
| Microgreens | Apr 6 | May 11 | May 18 | Jul 2 | May 25 – Jun 22 | 7–21 |
| Mitsuba | Apr 6 | May 11 | May 11 | Jul 2 | Jul 6 – Aug 31 | 50–70 |
| Mizuna | Apr 6 | May 11 | May 18 | Jul 2 | Jun 22 – Jul 20 | 30–45 |
| Mustard Greens | Apr 6 | May 11 | May 18 | Jul 2 | Jun 22 – Aug 24 | 30–50 |
| Napa Cabbage | Apr 6 | May 11 | May 18 | Jul 2 | Jul 13 – Aug 17 | 55–75 |
| Onion | Apr 6 | May 11 | May 18 | Jul 2 | Aug 17 – Oct 5 | 90–120 |
| Pac Choi | Apr 6 | May 11 | May 18 | Jul 2 | Jun 29 – Jul 27 | 40–55 |
| Parsnip | — | May 11 | — | Jul 2 | Aug 24 – Oct 5 | 100–130 |
| Patty Pan Squash | Apr 6 | Jun 1 | Jun 8 | — | Jul 27 – Aug 24 | 45–60 |
| Peas | Apr 6 | May 11 | May 18 | Jul 2 | Jul 13 – Sep 7 | 55–70 |
| Peppers | Mar 2 | Jun 1 | Jun 8 | — | Aug 10 – Oct 19 | 60–90 |
| Pole Beans | Mar 16 | Jun 1 | Jun 8 | — | Aug 3 – Sep 28 | 55–70 |
| Potatoes | Mar 16 | Jun 1 | Jun 8 | — | Aug 17 – Oct 26 | 70–120 |
| Pumpkin | Apr 6 | Jun 1 | Jun 8 | — | Sep 7 – Oct 26 | 85–120 |
| Purslane | Apr 6 | May 11 | May 18 | Jul 2 | Jun 29 – Aug 3 | 40–60 |
| Radicchio | Apr 6 | May 11 | May 18 | Jul 2 | Jul 20 – Aug 24 | 60–80 |
| Radish | — | May 11 | — | Jul 2 | Jun 8 – Jun 29 | 22–35 |
| Rhubarb | — | — | Jun 15 | — | — | 365–730 |
| Romanesco | Apr 6 | May 11 | May 18 | Jul 2 | Aug 3 – Sep 14 | 75–100 |
| Rutabaga | — | May 11 | — | Jul 2 | Aug 3 – Sep 7 | 80–100 |
| Salsify | — | May 11 | — | Jul 2 | Aug 24 – Oct 5 | 100–130 |
| Savoy Cabbage | Apr 6 | May 11 | May 18 | Jul 2 | Jul 27 – Sep 21 | 70–110 |
| Scallions | Apr 6 | May 11 | May 18 | Jul 2 | Jul 13 – Aug 10 | 50–70 |
| Scarlet Runner Beans | Mar 16 | Jun 1 | Jun 8 | — | Aug 10 – Sep 14 | 60–80 |
| Shallot | Apr 6 | May 11 | May 18 | Jul 2 | Aug 17 – Oct 5 | 90–120 |
| Shiso | Mar 23 | May 25 | Jun 8 | — | Aug 3 – Sep 28 | 50–70 |
| Snap Peas | Mar 16 | Jun 1 | Jun 8 | — | Aug 3 – Sep 28 | 55–70 |
| Snow Peas | Apr 6 | May 11 | May 18 | Jul 2 | Jul 13 – Sep 7 | 50–65 |
| Soybeans | — | Jun 1 | — | — | Aug 24 – Oct 19 | 80–120 |
| Spaghetti Squash | Apr 6 | Jun 1 | Jun 8 | — | Sep 7 – Oct 5 | 85–100 |
| Spinach | Apr 6 | May 11 | May 18 | Jul 2 | Jun 22 – Aug 24 | 35–50 |
| Squash (Summer) | Apr 6 | Jun 1 | Jun 8 | — | Jul 27 – Sep 28 | 45–65 |
| Squash (Winter) | Apr 6 | Jun 1 | Jun 8 | — | Aug 31 – Oct 26 | 80–120 |
| Sunchoke | — | — | Jun 1 | — | Sep 21 – Oct 26 | 110–150 |
| Sweet Corn | — | Jun 1 | — | — | Aug 3 – Sep 14 | 60–90 |
| Tatsoi | Apr 6 | May 11 | May 18 | Jul 2 | Jun 22 – Jul 27 | 35–50 |
| Tomatillo | Mar 16 | Jun 1 | Jun 8 | — | Aug 10 – Oct 19 | 60–85 |
| Tomatoes | Mar 16 | Jun 1 | Jun 8 | — | Aug 10 – Oct 19 | 60–85 |
| Turnip | — | May 11 | — | Jul 2 | Jun 22 – Jul 27 | 40–60 |
| Watercress | Apr 6 | May 11 | May 18 | Jul 2 | Jun 29 – Aug 3 | 40–60 |
| Watermelon | Apr 6 | Jun 1 | Jun 8 | — | Aug 17 – Oct 5 | 70–100 |
| Wax Beans | — | Jun 1 | — | — | Jul 27 – Sep 21 | 50–65 |
| Zucchini | Apr 6 | Jun 1 | Jun 8 | — | Jul 27 – Sep 21 | 45–60 |
🍓 Fruits to Grow in Sinclair
22 fruits matched to Zone 4a with planting dates calibrated for Sinclair.
Show all 22 fruits with dates
| Plant | Start Indoors | Direct Sow | Transplant | Fall Plant | Harvest | Days to Maturity |
|---|---|---|---|---|---|---|
| Alpine Strawberries | — | — | Jun 15 | — | Sep 14 – Nov 9 | 90–180 |
| Aronia | — | — | Jun 15 | — | — | 730–1095 |
| Blueberries | — | — | Jun 15 | — | — | 730–1095 |
| Cantaloupe | — | — | Jun 15 | — | Aug 24 – Sep 28 | 70–90 |
| Cranberries | — | — | Jun 15 | — | — | 730–1095 |
| Currants | — | — | Jun 15 | — | — | 730–1095 |
| Elderberries | — | — | Jun 15 | — | — | 730–1095 |
| Goji Berries | — | — | Jun 15 | — | — | 730–1095 |
| Gooseberries | — | — | Jun 15 | — | — | 730–1095 |
| Grapes | — | — | Jun 15 | — | — | 730–1095 |
| Ground Cherry | — | — | Jun 15 | — | Aug 24 – Oct 19 | 65–80 |
| Hardy Kiwi | — | — | Jun 15 | — | — | 1095–1825 |
| Haskaps | — | — | Jun 15 | — | — | 730–1095 |
| Honeydew | — | — | Jun 15 | — | Sep 7 – Oct 19 | 80–110 |
| Jostaberry | — | — | Jun 15 | — | — | 730–1095 |
| Lingonberries | — | — | Jun 15 | — | — | 730–1095 |
| Medlar | — | — | Jun 15 | — | — | 1095–1825 |
| Mulberries | — | — | Jun 15 | — | — | 730–1825 |
| Persimmon | — | — | Jun 15 | — | — | 1095–2555 |
| Raspberries | — | — | Jun 15 | — | — | 365–730 |
| Serviceberries | — | — | Jun 15 | — | — | 730–1095 |
| Strawberries | — | — | Jun 15 | — | Sep 14 – Nov 9 | 90–365 |
🌿 Herbs to Grow in Sinclair
30 herbs matched to Zone 4a with planting dates calibrated for Sinclair.
Show all 30 herbs with dates
| Plant | Start Indoors | Direct Sow | Transplant | Fall Plant | Harvest | Days to Maturity |
|---|---|---|---|---|---|---|
| Angelica | Apr 6 | May 11 | May 11 | Jul 2 | — | 365–730 |
| Anise | Apr 6 | May 11 | May 11 | Jul 2 | Aug 10 – Oct 5 | 90–120 |
| Basil | Mar 23 | May 25 | Jun 8 | — | Aug 3 – Oct 5 | 50–75 |
| Bee Balm | — | — | May 25 | — | Aug 24 – Oct 19 | 90–120 |
| Borage | Apr 6 | May 11 | May 11 | Jul 2 | Jul 6 – Aug 24 | 50–60 |
| Caraway | Apr 6 | May 11 | May 11 | Jul 2 | — | 365–450 |
| Catnip | — | — | May 25 | — | Jul 27 – Sep 28 | 60–80 |
| Chamomile | Apr 6 | May 11 | May 11 | Jul 2 | Jul 13 – Sep 21 | 60–90 |
| Chervil | Apr 6 | May 11 | May 11 | Jul 2 | Jun 22 – Aug 24 | 40–60 |
| Chives | — | — | May 25 | — | Jul 27 – Oct 5 | 60–90 |
| Cilantro | Apr 6 | May 11 | May 11 | Jul 2 | Jun 22 – Aug 24 | 40–60 |
| Comfrey | — | — | May 25 | — | Jul 27 – Oct 5 | 60–90 |
| Dill | Apr 6 | May 11 | May 11 | Jul 2 | Jun 22 – Aug 24 | 40–60 |
| Fennel (herb) | Apr 6 | May 11 | May 11 | Jul 2 | Jul 13 – Sep 21 | 60–90 |
| Garlic Chives | — | — | May 25 | — | Jul 27 – Oct 5 | 60–90 |
| Horehound | — | — | May 25 | — | Aug 10 – Oct 5 | 75–90 |
| Hyssop | — | — | May 25 | — | Aug 3 – Oct 5 | 70–90 |
| Lemon Balm | — | — | May 25 | — | Jul 27 – Sep 14 | 60–70 |
| Lovage | — | — | May 25 | — | Aug 3 – Oct 5 | 70–90 |
| Mint | — | — | May 25 | — | Jul 27 – Oct 5 | 60–90 |
| Oregano | — | — | May 25 | — | Jul 27 – Oct 5 | 60–90 |
| Parsley | Apr 6 | May 11 | May 11 | Jul 2 | Jul 13 – Sep 14 | 60–80 |
| Rue | — | — | May 25 | — | Aug 3 – Oct 5 | 70–90 |
| Sage | — | — | May 25 | — | Aug 10 – Oct 5 | 75–90 |
| Savory | — | — | May 25 | — | Jul 20 – Sep 14 | 50–70 |
| Sorrel | Apr 6 | May 11 | May 11 | Jul 2 | Jun 22 – Aug 24 | 40–60 |
| Tarragon | — | — | May 25 | — | Jul 27 – Oct 5 | 60–90 |
| Thai Basil | Mar 23 | May 25 | Jun 8 | — | Aug 3 – Oct 5 | 50–75 |
| Thyme | — | — | May 25 | — | Aug 3 – Oct 5 | 70–90 |
| Valerian | — | — | May 25 | — | Sep 28 – Oct 19 | 120–180 |
🌸 Flowers to Grow in Sinclair
49 flowers matched to Zone 4a with planting dates calibrated for Sinclair.
Show all 49 flowers with dates
| Plant | Start Indoors | Direct Sow | Transplant | Fall Plant | Bloom | Days to Maturity |
|---|---|---|---|---|---|---|
| Ageratum | Mar 23 | May 25 | May 25 | — | Jul 20 – Sep 28 | 60–75 |
| Alliums | — | — | — | Aug 13 | Sep 24 – Oct 15 | 28–42 |
| Astilbe | Mar 9 | — | Jun 1 | — | Aug 24 – Oct 19 | 70–100 |
| Bachelor's Button | Mar 30 | May 4 | May 18 | — | Jul 20 – Sep 21 | 60–90 |
| Begonias | Mar 2 | — | Jun 1 | — | Aug 10 – Oct 12 | 70–90 |
| Black-eyed Susan | Mar 9 | May 18 | Jun 1 | — | Aug 24 – Nov 2 | 60–80 |
| Bleeding Hearts | Mar 9 | — | Jun 1 | — | Jul 27 – Sep 7 | 60–90 |
| Calendula | Mar 30 | May 4 | May 18 | — | Jul 6 – Sep 21 | 50–70 |
| Celosia | Apr 6 | Jun 1 | Jun 1 | — | Aug 3 – Oct 19 | 60–90 |
| Columbine | Mar 9 | Jun 1 | Jun 1 | — | Jul 27 – Sep 7 | 70–100 |
| Coreopsis | Mar 9 | May 25 | Jun 1 | — | Aug 17 – Nov 2 | 60–80 |
| Cosmos | Apr 20 | May 25 | May 25 | — | Aug 3 – Oct 19 | 60–90 |
| Crocus | — | — | — | Aug 13 | Jun 18 – Jul 9 | 10–20 |
| Daffodils | — | — | — | Aug 13 | Jun 25 – Jul 16 | 20–40 |
| Dahlias | Apr 20 | Jun 1 | Jun 1 | — | Aug 31 – Nov 2 | 70–120 |
| Daylily | Mar 9 | — | Jun 1 | — | Aug 31 – Nov 2 | 60–90 |
| Dianthus | Mar 16 | Apr 27 | May 11 | — | Jun 29 – Aug 31 | 60–80 |
| Echinacea (Purple Coneflower) | Mar 9 | Jun 1 | Jun 1 | — | Aug 31 – Nov 2 | 70–90 |
| Foxglove | Mar 9 | Jun 1 | Jun 1 | — | Jul 27 – Sep 7 | 80–120 |
| Gaillardia (Blanket Flower) | Mar 23 | Jun 1 | Jun 1 | — | Aug 10 – Nov 9 | 70–100 |
| Geraniums | Mar 2 | — | Jun 1 | — | Aug 10 – Oct 12 | 70–100 |
| Gladiolus | — | May 25 | May 25 | — | Aug 24 – Oct 26 | 70–100 |
| Hostas | Mar 2 | — | Jun 1 | — | Aug 31 – Nov 2 | 60–90 |
| Hyacinths | — | — | — | Aug 13 | Jul 16 – Aug 6 | 14–28 |
| Hydrangeas | Mar 2 | — | Jun 1 | — | Aug 24 – Oct 19 | 90–150 |
| Impatiens | Mar 16 | — | Jun 1 | — | Aug 17 – Oct 12 | 60–75 |
| Irises | — | Division | Jun 1 | — | Jul 27 – Aug 24 | 60–100 |
| Larkspur | — | Apr 13 | — | — | Jun 22 – Aug 3 | 60–90 |
| Lilies | — | Division | Jun 1 | — | Aug 24 – Oct 26 | 70–120 |
| Lobelia | Mar 9 | — | May 18 | — | Jul 13 – Sep 7 | 70–80 |
| Lupine | Mar 9 | Jun 1 | Jun 1 | — | Jul 27 – Sep 7 | 75–100 |
| Marigolds | Apr 6 | Jun 1 | Jun 1 | — | Jul 27 – Oct 12 | 50–70 |
| Nasturtium | Apr 20 | Jun 1 | Jun 1 | — | Jul 27 – Oct 12 | 55–65 |
| Pansy | Mar 2 | — | May 18 | — | Jul 13 – Aug 31 | 70–90 |
| Peonies | — | Division | Jun 1 | — | Aug 10 – Sep 14 | 90–120 |
| Petunia | Mar 16 | — | Jun 1 | — | Aug 17 – Oct 19 | 70–90 |
| Phlox | Mar 9 | Jun 1 | Jun 1 | — | Aug 24 – Oct 26 | 80–110 |
| Portulaca | Apr 6 | Jun 1 | Jun 1 | — | Jul 20 – Sep 28 | 50–70 |
| Roses | Mar 2 | — | Jun 1 | — | Aug 24 – Nov 2 | 90–180 |
| Salvia | Mar 9 | — | Jun 1 | — | Aug 10 – Oct 12 | 70–90 |
| Sedum (Stonecrop) | Mar 9 | — | Jun 1 | — | Oct 5 – Nov 23 | 60–90 |
| Snapdragon | Mar 2 | — | May 18 | — | Jul 27 – Sep 21 | 70–100 |
| Sunflower | Apr 27 | Jun 1 | Jun 1 | — | Aug 24 – Oct 19 | 70–100 |
| Sweet Alyssum | Mar 23 | May 11 | May 18 | — | Jun 29 – Aug 31 | 45–60 |
| Sweet Pea | Mar 30 | Apr 13 | May 18 | — | Aug 10 – Sep 21 | 65–85 |
| Tulips | — | — | — | Aug 13 | Jul 9 – Jul 30 | 15–30 |
| Vinca (Annual) | Mar 2 | — | Jun 1 | — | Aug 10 – Oct 12 | 70–90 |
| Yarrow | Mar 9 | May 18 | Jun 1 | — | Aug 17 – Nov 2 | 60–90 |
| Zinnia | Apr 20 | Jun 1 | Jun 1 | — | Aug 10 – Oct 19 | 60–70 |
Monthly Planting Guide for Sinclair
ZIP Codes in Sinclair
Click any ZIP to see its specific frost, soil, and climate measurements (some ZIPs differ noticeably from the town aggregate):