Frost Dates for Stevensville, MD 21666
Last spring frost April 6 · First fall frost October 31 · 208 frost-free days · USDA Zone 8a
ZIP 21666 has about 14,400 people.
Long season: 208 frost-free days. Spring frost risk spans March 27–April 16 (20 days). Fall frost risk spans October 14–November 18 (35 days).
Frost probability for 21666
| Frost | 10% | 50% | 90% |
|---|---|---|---|
| Spring (last frost) | April 16 | April 6 | March 27 |
| Fall (first frost) | October 14 | October 31 | November 18 |
Dates come from NOAA 1971–2000 freeze probabilities at ANNAPOLIS POLICE BRKS (16.3 km away); the 50% date is the median year.
Which crops fit a 208-day season in Stevensville
In Stevensville (208 frost-free days, a long season), 30 of 56 planner crops fit outright, 25 get two plantings, 1 crop is perennial.
| Crop | Start indoors | Plant out / sow | Days you have | Verdict | Last sow date |
|---|---|---|---|---|---|
| Tomato | Mar 2 | Apr 20–Apr 27 | 166 | fits: 80 days to maturity, 166 available after Apr 20. | Jul 1 |
| Pepper | Feb 23 | Apr 20–Apr 27 | 166 | fits: 75 days to maturity, 166 available after Apr 20. | Jul 6 |
| Lettuce | Feb 9 | Mar 9–Mar 16 | 243 | two-plantings: Plant Mar 9 and again by Sep 9; both mature before Nov 7. | Sep 9 |
| Carrots | — | Mar 16–Mar 23 | 250 | fits: 70 days to maturity, 250 available after Mar 16. | Aug 29 |
| Cucumber | Mar 16 | Apr 20–Apr 27 | 180 | two-plantings: Plant Apr 20 and again by Aug 4; both mature before Oct 17. | Aug 4 |
| Beans | — | Apr 13–Apr 27 | 194 | two-plantings: Plant Apr 13 and again by Aug 11; both mature before Oct 24. | Aug 11 |
| Peas | — | Feb 9–Apr 20 | 271 | fits: 65 days to maturity, 271 available after Feb 9. | Aug 20 |
| Zucchini | Mar 23 | Apr 20–Apr 27 | 180 | two-plantings: Plant Apr 20 and again by Aug 9; both mature before Oct 17. | Aug 9 |
| Onion | Jan 12 | Mar 9–Mar 23 | 243 | fits: 100 days to maturity, 243 available after Mar 9. | — |
| Spinach | — | Feb 9–Mar 30 | 285 | two-plantings: Plant Feb 9 and again by Sep 28; both mature before Nov 21. | Sep 28 |
| Kale | Jan 26 | Mar 9–Mar 23 | 257 | two-plantings: Plant Mar 9 and again by Sep 13; both mature before Nov 21. | Sep 13 |
| Broccoli | Feb 9 | Mar 9–Mar 23 | 243 | fits: 80 days to maturity, 243 available after Mar 9. | Aug 5 |
| Cabbage | Feb 9 | Mar 9–Mar 23 | 257 | fits: 70 days to maturity, 257 available after Mar 9. | Aug 29 |
| Radish | — | Feb 9–May 4 | 271 | two-plantings: Plant Feb 9 and again by Sep 29; both mature before Nov 7. | Sep 29 |
| Beets | — | Feb 9–May 4 | 271 | two-plantings: Plant Feb 9 and again by Aug 30; both mature before Nov 7. | Aug 30 |
| Potatoes | — | Mar 23–Mar 30 | 229 | fits: 90 days to maturity, 229 available after Mar 23. | — |
| Garlic | — | Oct 31 | 313 | overwinter: Plant Oct 31 to Nov 21; harvest the following summer. | Nov 21 |
| Strawberry | — | Mar 2–Apr 27 | 264 | perennial: A perennial: plant Mar 2; it fruits from the following year and keeps producing for several years. | — |
| Corn | Mar 9 | Apr 13–Apr 20 | 180 | fits: 75 days to maturity, 180 available after Apr 13. | Jul 13 |
| Pumpkin | Mar 23 | Apr 20–Apr 20 | 173 | fits: 100 days to maturity, 173 available after Apr 20. | Jun 18 |
| Cauliflower | Feb 23 | Mar 30–Apr 13 | 222 | fits: 75 days to maturity, 222 available after Mar 30. | Aug 10 |
| Swiss Chard | Feb 9 | Mar 23–Mar 23 | 229 | two-plantings: Plant Mar 23 and again by Aug 30; both mature before Nov 7. | Aug 30 |
| Arugula | — | Feb 9–May 4 | 285 | two-plantings: Plant Feb 9 and again by Sep 28; both mature before Nov 21. | Sep 28 |
| Brussel Sprouts | Feb 9 | Mar 9–Mar 23 | 257 | fits: 100 days to maturity, 257 available after Mar 9. | Jul 30 |
| Butternut Squash | Mar 23 | Apr 20–Apr 27 | 173 | fits: 100 days to maturity, 173 available after Apr 20. | Jun 18 |
| Eggplant | Feb 16 | Apr 20–Apr 27 | 166 | fits: 70 days to maturity, 166 available after Apr 20. | Jul 11 |
| Okra | Mar 9 | Apr 13–Apr 20 | 187 | two-plantings: Plant Apr 13 and again by Aug 9; both mature before Oct 17. | Aug 9 |
| Basil | Mar 2 | Apr 27–Apr 27 | 173 | two-plantings: Plant Apr 27 and again by Aug 4; both mature before Oct 17. | Aug 4 |
| Cilantro | — | Mar 9–Mar 30 | 243 | two-plantings: Plant Mar 9 and again by Sep 4; both mature before Nov 7. | Sep 4 |
| Parsley | Jan 26 | Apr 13–Apr 20 | 208 | fits: 70 days to maturity, 208 available after Apr 13. | Aug 15 |
| Celery | Jan 26 | Apr 13–Apr 27 | 208 | fits: 120 days to maturity, 208 available after Apr 13. | Jun 26 |
| Scallions | Jan 26 | Mar 9–Mar 23 | 257 | two-plantings: Plant Mar 9 and again by Sep 8; both mature before Nov 21. | Sep 8 |
| Turnip | — | Mar 9–Mar 23 | 257 | two-plantings: Plant Mar 9 and again by Sep 18; both mature before Nov 21. | Sep 18 |
| Kohlrabi | — | Feb 23–Mar 9 | 271 | two-plantings: Plant Feb 23 and again by Sep 13; both mature before Nov 21. | Sep 13 |
| Bok Choy | Mar 9 | Mar 30–Apr 6 | 222 | two-plantings: Plant Mar 30 and again by Sep 9; both mature before Nov 7. | Sep 9 |
| Collards | Jan 26 | Mar 9–Mar 23 | 257 | two-plantings: Plant Mar 9 and again by Sep 8; both mature before Nov 21. | Sep 8 |
| Cantaloupe | Mar 23 | Apr 20–Apr 27 | 166 | fits: 85 days to maturity, 166 available after Apr 20. | Jun 26 |
| Chives | Jan 12 | Apr 13–Apr 20 | 222 | fits: 90 days to maturity, 222 available after Apr 13. | — |
| Dill | — | Feb 9–May 4 | 271 | two-plantings: Plant Feb 9 and again by Aug 30; both mature before Nov 7. | Aug 30 |
| Oregano | Jan 26 | Apr 13–Apr 20 | 222 | fits: 80 days to maturity, 222 available after Apr 13. | — |
| Rosemary | Jan 12 | Apr 13–Apr 20 | 208 | fits: 80 days to maturity, 208 available after Apr 13. | — |
| Sage | Feb 9 | Apr 13–Apr 20 | 222 | fits: 75 days to maturity, 222 available after Apr 13. | — |
| Thyme | Jan 26 | Apr 13–Apr 20 | 222 | fits: 90 days to maturity, 222 available after Apr 13. | — |
| Calendula | Feb 23 | Mar 23–Apr 6 | 229 | two-plantings: Plant Mar 23 and again by Sep 4; both mature before Nov 7. | Sep 4 |
| Cosmos | Mar 9 | Apr 6–Apr 20 | 194 | two-plantings: Plant Apr 6 and again by Aug 4; both mature before Oct 17. | Aug 4 |
| Lavender | Jan 12 | Apr 6–Apr 20 | 229 | fits: 90 days to maturity, 229 available after Apr 6. | — |
| Marigolds | Feb 23 | Apr 6–Apr 13 | 194 | two-plantings: Plant Apr 6 and again by Aug 14; both mature before Oct 17. | Aug 14 |
| Melons | Mar 23 | Apr 20–Apr 27 | 166 | fits: 85 days to maturity, 166 available after Apr 20. | Jun 26 |
| Mint | — | Apr 6–Apr 20 | 229 | fits: 90 days to maturity, 229 available after Apr 6. | — |
| Nasturtiums | Mar 9 | Apr 6–Apr 13 | 194 | two-plantings: Plant Apr 6 and again by Aug 9; both mature before Oct 17. | Aug 9 |
| Pole Beans | — | Apr 13–Apr 27 | 187 | fits: 65 days to maturity, 187 available after Apr 13. | Jul 30 |
| Spaghetti Squash | Mar 23 | Apr 20–Apr 27 | 173 | fits: 90 days to maturity, 173 available after Apr 20. | Jun 28 |
| Sunflowers | — | Apr 6–Apr 20 | 194 | fits: 70 days to maturity, 194 available after Apr 6. | Jul 25 |
| Tomatillos | Feb 9 | Apr 13–Apr 20 | 173 | fits: 75 days to maturity, 173 available after Apr 13. | Jul 6 |
| Watermelon | Mar 23 | Apr 13–Apr 20 | 173 | fits: 80 days to maturity, 173 available after Apr 13. | Jul 1 |
| Yellow Squash | Mar 23 | Apr 20–Apr 27 | 180 | two-plantings: Plant Apr 20 and again by Aug 9; both mature before Oct 17. | Aug 9 |
| Zinnias | Mar 9 | Apr 6–Apr 20 | 194 | two-plantings: Plant Apr 6 and again by Aug 4; both mature before Oct 17. | Aug 4 |
Month by month in Stevensville
| Month | What to do |
|---|---|
| January | Start indoors: Chives (Jan 12), Lavender (Jan 12), Onion (Jan 12), Rosemary (Jan 12), Celery (Jan 26), Collards (Jan 26), +5 more. |
| February | Start indoors: Broccoli (Feb 9), Brussel Sprouts (Feb 9), Cabbage (Feb 9), Lettuce (Feb 9), Sage (Feb 9), Swiss Chard (Feb 9), +6 more. Direct sow from: Arugula (Feb 9), Beets (Feb 9), Dill (Feb 9), Peas (Feb 9), Radish (Feb 9), Spinach (Feb 9), +1 more. |
| March | Start indoors: Basil (Mar 2), Tomato (Mar 2), Bok Choy (Mar 9), Corn (Mar 9), Cosmos (Mar 9), Nasturtiums (Mar 9), +11 more. Direct sow from: Cilantro (Mar 9), Turnip (Mar 9), Carrots (Mar 16), Potatoes (Mar 23). Transplant from: Broccoli (Mar 9), Brussel Sprouts (Mar 9), Cabbage (Mar 9), Collards (Mar 9), Kale (Mar 9), Lettuce (Mar 9), +6 more. Plant: Strawberry (Mar 2). |
| April | Direct sow from: Sunflowers (Apr 6), Beans (Apr 13), Pole Beans (Apr 13). Transplant from: Cosmos (Apr 6), Lavender (Apr 6), Marigolds (Apr 6), Mint (Apr 6), Nasturtiums (Apr 6), Zinnias (Apr 6), +23 more. Last frost around April 6. |
| May | Frost has passed. Transplant tomatoes, peppers, and basil outdoors. Direct sow beans, cucumbers, squash, and zucchini. |
| June | Last sowing dates: Butternut Squash (Jun 18), Pumpkin (Jun 18), Cantaloupe (Jun 26), Celery (Jun 26), Melons (Jun 26), Spaghetti Squash (Jun 28). |
| July | Last sowing dates: Tomato (Jul 1), Watermelon (Jul 1), Pepper (Jul 6), Tomatillos (Jul 6), Eggplant (Jul 11), Corn (Jul 13), +3 more. |
| August | Last sowing dates: Basil (Aug 4), Cosmos (Aug 4), Cucumber (Aug 4), Zinnias (Aug 4), Broccoli (Aug 5), Nasturtiums (Aug 9), +13 more. |
| September | Last sowing dates: Calendula (Sep 4), Cilantro (Sep 4), Collards (Sep 8), Scallions (Sep 8), Bok Choy (Sep 9), Lettuce (Sep 9), +6 more. |
| October | Direct sow from: Garlic (Oct 31). First frost around October 31. |
| November | Last sowing dates: Garlic (Nov 21). |
| December | Clean up spent plants. Add compost to beds. Rest, review, and plan next year's garden. |
Frequently Asked Questions
What is the last frost date for Stevensville, MD (ZIP 21666)?
The median last spring frost date for Stevensville, MD (ZIP code 21666) is around April 6. This is the 50th-percentile date — meaning half of all years see frost end before this date. Use the 10% and 90% dates to understand the full range of risk in your area. One year in ten frost ends before March 27; one in ten it runs past April 16.
What is the first fall frost date in Stevensville, MD?
The median first fall frost date for Stevensville, MD is around October 31. Plan to harvest or protect frost-sensitive crops like tomatoes and peppers at least a week before this date to avoid losses. The first frost arrives around October 14 in the earliest one-in-ten years, so cover tomatoes and peppers from then.
How long is the growing season in Stevensville, MD?
The frost-free growing season in Stevensville is about 208 days. This window — from your last spring frost to your first fall frost — is when warm-season vegetables thrive. Cold-hardy crops like kale, spinach, and peas can extend your season by weeks on either side. In Stevensville (208 frost-free days, a long season), 30 of 56 planner crops fit outright, 25 get two plantings, 1 crop is perennial.
What USDA hardiness zone is Stevensville, MD?
Stevensville, MD is in USDA hardiness zone 8a (2023 USDA Plant Hardiness Zone Map). Zones come from the average coldest winter temperature, so they tell you which perennials survive the winter; the frost dates on this page tell you when to plant.
When should I start tomatoes indoors in Stevensville, MD?
Start tomatoes indoors Mar 2 and plant out Apr 20 in Stevensville. The planner uses the local median last frost and this crop's indoor-start and transplant offsets.
How many plantings of lettuce fit in Stevensville?
Two: plant Mar 9 and again by Sep 9; both mature before Nov 7.
When do I plant garlic in Stevensville?
Oct 31 to Nov 21; it overwinters and is ready the following summer.
Can I get two tomato crops in Stevensville?
Yes: plant out Apr 20 for a summer crop, and set out a second round of transplants by Jul 1 for a fall crop.
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