Lawrence, Massachusetts planting calendar and frost dates
Lawrence is in USDA hardiness zone 6b. The last spring frost typically comes around April 13 and the first fall frost around October 28, giving about 198 frost-free days a year.
- Hardiness zone
- Zone 6b
- Typical last frost
- April 13
- Typical first frost
- October 28
- Frost-free season
- 198 days
Frost dates in Lawrence
Last spring frost
- April 1Risky: frost later than this in 9 years out of 10
- April 13Typical: a later frost in half of years
- April 29Safe: a later frost only 1 year in 10
First fall frost
- October 13Risky: frost earlier than this 1 year in 10
- October 28Typical: an earlier frost in half of years
- November 10Late: frost before this in 9 years out of 10
The growing season between the typical last and first frosts is about 198 days. Frost here means a low of 32°F at the weather station. A hard freeze (28°F), which damages most hardy crops too, typically ends around April 3 and returns around November 9.
NOAA U.S. Climate Normals 1991-2020 for Lawrence, 0.7 miles NNW of the city center. Low-lying and rural spots often frost later in spring and earlier in fall than airports and city centers.
What to plant each month in Lawrence
January
Start indoors: broccoli, cauliflower, collard greens, kale, leeks, onions, petunias, ranunculus
February
Start indoors: black-eyed susans, broccoli, cabbages, cauliflower, chives, collard greens, kale, leeks, lettuce, marigolds, onions, oregano, parsley, petunias, ranunculus, rosemary, sage, snapdragons
March
Start indoors: black-eyed susans, cabbages, celery, chives, cilantro, collard greens, eggplants, ginger, lettuce, marigolds, nasturtiums, peppers, ranunculus, sage, snapdragons, spinach, swiss chard, tomatoes
Plant or sow outdoors: beets, black-eyed susans, blackberries, blueberries, broccoli, cabbages, carrots, cauliflower, chives, cilantro, collard greens, dahlias, dill, figs, garlic, gladioli, grapes, grass seed, hollyhocks, kale, leeks, lettuce, onions, parsley, peas, poppies, radishes, ranunculus, raspberries, rhubarb, roses, snapdragons, spinach, strawberries, swiss chard, turnips, wildflowers
April
Start indoors: basil, cantaloupes, cosmos, cucumbers, eggplants, okra, peppers, pumpkins, tomatoes, watermelons, winter squash, zucchini
Plant or sow outdoors: asparagus, beets, carrots, cauliflower, chives, cilantro, dahlias, dill, figs, garden mums, gladioli, grapes, green onions, lavenders, leeks, lettuce, lilies, marigolds, mints, nasturtiums, oregano, parsley, petunias, potatoes, ranunculus, rosemary, roses, sage, snapdragons, spinach, sunflowers, sweet corn, swiss chard, thyme
May
Start indoors: cosmos, cucumbers, okra, pumpkins, winter squash, zinnias, zucchini
Plant or sow outdoors: asparagus, basil, cantaloupes, cucumbers, eggplants, garden mums, ginger, green beans, green onions, kentucky bluegrass, peppers, perennial ryegrass, pumpkins, st. augustinegrass, sunflowers, sweet corn, sweet peas, tall fescue, tomatoes, watermelons, winter squash, zucchini
June
Plant or sow outdoors: bermudagrass, cantaloupes, celery, centipedegrass, cosmos, cucumbers, eggplants, green beans, green onions, okra, peanuts, peppers, pumpkins, st. augustinegrass, sweet potatoes, tomatoes, watermelons, winter squash, zinnias, zoysiagrass, zucchini
July
Plant or sow outdoors: bermudagrass, centipedegrass, zinnias, zoysiagrass
Plant for fall: brussels sprouts, collard greens, lettuce, swiss chard
August
Plant for fall: bearded irises, beets, broccoli, cabbages, carrots, cauliflower, collard greens, daylilies, kale, lettuce, peas, radishes, snapdragons, spinach, swiss chard, turnips
September
Plant for fall: azaleas, bearded irises, beets, broccoli, cabbages, cauliflower, clematis, coneflowers, crocuses, daffodils, daylilies, grass seed, hostas, hyacinths, hydrangeas, kale, lettuce, lilies, ornamental alliums, peonies, radishes, roses, saffron, snapdragons, spinach, tulips, turnips
October
Plant for fall: crocuses, daffodils, daylilies, garlic, hyacinths, lilies, ornamental alliums, peonies, tulips
November
Plant for fall: crocuses, garlic, hyacinths, ornamental alliums, tulips
December
Start indoors: onions
Frost dates and zones by ZIP code in Lawrence
All 3 of Lawrence's main ZIP codes take their frost dates from Lawrence, so the dates on this page apply across the city. Every one of them is in zone 6b.
Planting dates for popular crops in Lawrence
| Plant | Start indoors | Plant or sow outdoors | Fall planting |
|---|---|---|---|
| Tomatoes | Mar 25 to Apr 8 | May 20 to Jun 3 | — |
| Strawberries | — | Mar 2 to 16 | — |
| Lettuce | Feb 16 to Mar 2 | Apr 6 to 20 | Jul 29 to Sep 2 |
| Cilantro | Mar 2 to 16 | Apr 13 to 20 | — |
| Basil | Apr 1 to 15 | May 20 to 27 | — |
| Potatoes | — | Apr 19 to 26 | — |
| Garlic | — | Mar 2 to 16 | Oct 28 to Nov 11 |
| Onions | Dec 22 to Feb 2 | Mar 16 to 30 | — |
| Cucumbers | Apr 22 to May 6 | May 20 to Jun 3 | — |
| Pumpkins | Apr 22 to May 6 | May 20 to Jun 3 | — |
| Peppers | Mar 4 to Apr 1 | May 20 to Jun 3 | — |
| Carrots | — | Mar 23 to Apr 13 | Aug 5 to 26 |
| Sweet Potatoes | — | Jun 6 to 13 | — |
| Watermelons | Apr 15 to 29 | May 20 to Jun 3 | — |
| Sweet Corn | — | Apr 19 to May 3 | — |
| Green Beans | — | May 20 to Jun 3 | — |
| Zucchini | Apr 22 to May 6 | May 20 to Jun 3 | — |
| Broccoli | Jan 26 to Feb 16 | Mar 16 to 30 | Aug 12 to Sep 9 |
| Peas | — | Mar 2 to 16 | Aug 5 to 19 |
| Spinach | Mar 2 to 9 | Apr 6 to 20 | Aug 19 to Sep 23 |
| Sunflowers | — | Apr 19 to May 10 | — |
| Zinnias | May 24 to 31 | Jun 21 to Jul 5 | — |
| Tulips | — | — | Sep 16 to Nov 11 |
| Daffodils | — | — | Sep 16 to Oct 28 |
| Grass Seed | — | Mar 2 to 16 | Sep 16 to 30 |
Nearby cities
- Haverhill, MA zone 6a, last frost May 1
- Lowell, MA zone 6b, last frost Apr 30
- Peabody, MA zone 6b, last frost May 3
- Nashua, NH zone 6a, last frost Apr 30
- Lynn, MA zone 6b, last frost Apr 4
- Medford, MA zone 6b, last frost Apr 4
Planting in MassachusettsAbout zone 6bPrintable calendar for Lawrence
Questions
When is the last frost in Lawrence?
Around April 13 in a typical year, based on NOAA's 1991-2020 records for Lawrence. There is still a 1 in 10 chance of frost after April 29.
What planting zone is Lawrence in?
USDA hardiness zone 6b (2023 map). The zone tells you which perennials survive the winter; planting dates depend on frost dates instead.
When should I plant tomatoes in Lawrence?
Start seeds indoors March 25 to April 8 and set plants out May 20 to June 3.
When is the first frost in Lawrence?
Around October 28 in a typical year, and before October 13 about 1 year in 10.