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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

  1. January

    Start indoors: broccoli, cauliflower, collard greens, kale, leeks, onions, petunias, ranunculus

  2. February

    Start indoors: black-eyed susans, broccoli, cabbages, cauliflower, chives, collard greens, kale, leeks, lettuce, marigolds, onions, oregano, parsley, petunias, ranunculus, rosemary, sage, snapdragons

  3. 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

  4. 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

  5. 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

  6. 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

  7. July

    Plant or sow outdoors: bermudagrass, centipedegrass, zinnias, zoysiagrass

    Plant for fall: brussels sprouts, collard greens, lettuce, swiss chard

  8. August

    Plant for fall: bearded irises, beets, broccoli, cabbages, carrots, cauliflower, collard greens, daylilies, kale, lettuce, peas, radishes, snapdragons, spinach, swiss chard, turnips

  9. 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

  10. October

    Plant for fall: crocuses, daffodils, daylilies, garlic, hyacinths, lilies, ornamental alliums, peonies, tulips

  11. November

    Plant for fall: crocuses, garlic, hyacinths, ornamental alliums, tulips

  12. 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.

ZIP codeZoneWeather stationTypical last frostTypical first frost
018406bLawrence, 0.6 mi SSWApr 13Oct 28
018416bLawrence, 1.4 mi SWApr 13Oct 28
018436bLawrence, 0.7 mi NNWApr 13Oct 28

Planting dates for popular crops in Lawrence

PlantStart indoorsPlant or sow outdoorsFall planting
TomatoesMar 25 to Apr 8May 20 to Jun 3—
Strawberries—Mar 2 to 16—
LettuceFeb 16 to Mar 2Apr 6 to 20Jul 29 to Sep 2
CilantroMar 2 to 16Apr 13 to 20—
BasilApr 1 to 15May 20 to 27—
Potatoes—Apr 19 to 26—
Garlic—Mar 2 to 16Oct 28 to Nov 11
OnionsDec 22 to Feb 2Mar 16 to 30—
CucumbersApr 22 to May 6May 20 to Jun 3—
PumpkinsApr 22 to May 6May 20 to Jun 3—
PeppersMar 4 to Apr 1May 20 to Jun 3—
Carrots—Mar 23 to Apr 13Aug 5 to 26
Sweet Potatoes—Jun 6 to 13—
WatermelonsApr 15 to 29May 20 to Jun 3—
Sweet Corn—Apr 19 to May 3—
Green Beans—May 20 to Jun 3—
ZucchiniApr 22 to May 6May 20 to Jun 3—
BroccoliJan 26 to Feb 16Mar 16 to 30Aug 12 to Sep 9
Peas—Mar 2 to 16Aug 5 to 19
SpinachMar 2 to 9Apr 6 to 20Aug 19 to Sep 23
Sunflowers—Apr 19 to May 10—
ZinniasMay 24 to 31Jun 21 to Jul 5—
Tulips——Sep 16 to Nov 11
Daffodils——Sep 16 to Oct 28
Grass Seed—Mar 2 to 16Sep 16 to 30

Nearby cities

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.