May is the month when the gardening season shifts into high gear across most of the country. In cold-winter zones, the last frost is finally behind us, and it's time to get warm-season crops in the ground. In mild-winter zones, the garden is already humming, and the focus turns to keeping up with rapid spring growth. And in the warmest zones, the race is on to get heat-lovers established before summer temperatures take over. Whatever your zone, May is a month of momentum.
Zones 1-7a: May is the main planting kickoff in cold-winter zones, when gardens finally move from starts and prep into full outdoor action. Early May often still favors hardy transplants and direct-sown cool-season crops, while mid-to-late May is when many areas can safely set out warm-season plants as frost risk drops. Keep hardening off seedlings, use row cover if nights run cold, and focus on steady watering and early weed control so young plants establish quickly.
Zones 7b-9a: May is prime warm-season planting time in mild-winter zones, with soil temperatures rising and growth accelerating. This is the month to get main-season crops established outdoors, keep up with succession sowing, and set up supports before vines and tall plants take off. Watch moisture as days warm, mulch to hold soil moisture, and keep an eye out for the first big flush of pests as the garden hits its stride.
Zones 9b-12: May marks the shift into early summer conditions in the warm-winter zones, and gardens respond fast with rapid growth. Warm-season crops should be planted and growing strongly now, and succession sowing keeps harvests coming even as temperatures climb. Stay ahead of heat stress by mulching, watering consistently, and planting in the coolest part of the day - and in the hottest areas, begin planning for shade cloth and other summer protection.
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![Legend: H for Heirloom, O for Organic, A for AAS Winner, F for staff favorites]()
Squash Seeds - Winter - Cushaw White
80-120 Days to maturity. Cucurbita argyrosperma. Cushaw White Squash Seeds. Non-GMO, Cushaw White Winter Squash Seeds. Non-GMO, annual, open-pollinated, heirloom. Suitable for growing in fields, containers, garden plots, raised beds,...
Squash Seeds - Winter - Pilgrim F1
Pilgrim F1 Hybrid Squash Seeds. Cucurbita moschata. F1 Hybrid. Non-GMO. Annual. 80 days to maturity. This hybrid butternut squash performs well under a wide variety of growing conditions and has...
Squash Seeds - Winter - Hubbard White
90 days to maturity. Cucurbita maxima. Hubbard White Winter Squash Seeds.Non-GMO, annual, heirloom, open-pollinated. Suitable for growing in fields, garden plots, and raised beds. Classic white-skinned Hubbard with thick, bumpy...
Squash Seeds - Winter - Triamble
105 days to maturity. Cucurbita maxima. Triamble Winter Squash Seeds. Non-GMO, annual, heirloom, open-pollinated. Suitable for growing in fields, garden plots, and raised beds. An unusually beautiful Australian heirloom with...
Squash Seeds - Winter - Table Princess F1 PMT
Table Princess F1 PMT Hybrid Squash Seeds. Cucurbita pepo. F1 Hybrid. Non-GMO. Annual. 70 days to maturity. Table Princess F1 has a semi-bush habit, making it possible to plant in...
Squash Seeds - Winter - Gold Nugget - Organic
Organic Gold Nugget Winter Squash Seeds. 75 - 95 days to maturity. Can be grown in containers. Cucurbita maxima. Heirloom, Non-GMO, Annual. Early compact runnerless plant with a Buttercup shape....
Squash Seeds - Winter - American Tondo
100 days to maturity. Cucurbita pepo. American Tondo Winter Squash Seeds. Non-GMO, annual, heirloom, open-pollinated. This is suitable for growing in fields, containers, garden plots, raised beds, and greenhouses. Italian...
Squash Seeds - Winter - Big Chief Hybrid
110 days to maturity. Cucurbita moschata. Big Chief Hybrid Butternut Winter Squash Seeds. Non-GMO, annual, F1 hybrid. This is suitable for growing in fields, garden plots, raised beds, and containers....
Squash Seeds - Winter - Guatemalan Blue
90 to 110 days to maturity. Cucurbita maxima. Guatemalan Blue Winter Squash Seeds. Non-GMO, annual, heirloom, open-pollinated. Suitable for growing in fields, garden plots, raised beds, and containers. Striking blue-skinned...
Squash Seeds - Winter - Pinata F1 PMT
Pinata F1 PMT Hybrid Squash Seeds. Cucurbita pepo. F1 Hybrid. Non-GMO. Annual. 85 days to maturity. This winter squash will truly become a fast favorite in your house. Pinata F1...
Squash Seeds - Winter - Amish Pie (Organic)
100 days to maturity. Cucurbita maxima. Organic Amish Pie Winter Squash Seeds. Non-GMO, annual, heirloom, organic, open-pollinated. This is suitable for growing in fields, containers, garden plots, raised beds, and...
Gourd Seeds - Small Warted Mix
60+ Days to maturity. Cucurbita sp. Small Warted Mixed Gourd Vegetable Seeds. Non-GMO, annual, open-pollinated gourd seeds. A collection of different shapes and colors of ornamentals gourds, mostly under 1...
Squash Seeds - Winter - Cushaw Orange Striped
Cushaw Orange Striped Winter Squash Seeds. 110 days to maturity. Cucurbita mixta. Annual. Heirloom. The cushaw varieties are commonly referred to as both squash and pumpkins. Approximately 175 seeds/ounce. Squash...
Squash Seeds - Winter - Chieftain Hybrid
80 days to maturity. Cucurbita moschata. Chieftain Hybrid Winter Squash Seeds. Non-GMO, annual, F1 hybrid. This is suitable for growing in fields, containers, garden plots, raised beds, and greenhouses. Early...
Squash Seeds - Winter - Bugle
80 Days to maturity. Cucurbita maxima. Bugle Winter Squash Seeds. Non-GMO, open-pollinated, heirloom. Suitable for growing in fields, garden plots, and raised beds. This French heirloom produces a beautifully shaped...
Squash Seeds - Winter - Fordhook Acorn (Organic)
80-120 Days to maturity. Cucurbita pepo. Fordhook Acorn (Organic) Winter Squash Seeds. Non-GMO, annual, organic, open-pollinated heirloom. Suitable for growing in fields, garden plots, raised beds, and greenhouses. Resistant to...
Squash Seeds - Winter - Indian Brave F1
Indian Brave F1 Hybrid Squash Seeds. Cucurbita moschata. F1 Hybrid. Non-GMO. Annual. 85 days to maturity. Many of our customers have been requesting a larger vining hybrid butternut that is...
Squash Seeds - Winter - Burgess Buttercup (Organic)
95 days to maturity. Cucurbita maxima. Organic Burgess Buttercup Winter Squash Seeds. Non-GMO, annual, heirloom, open-pollinated. This is suitable for growing in fields, garden plots, and raised beds. Classic buttercup...
Squash Seeds - Winter - Hubbard Essex Red
110 Days to maturity. Cucurbita maxima. Hubbard Essex Red Winter Squash Seeds. Non-GMO, annual, open-pollinated, heirloom. Suitable for growing in fields, containers, garden plots, raised beds, and greenhouses. Hubbard Essex...
Squash Seeds - Winter - Sugaretti F1 AAS
Sugaretti F1 AAS Hybrid Squash Seeds. Cucurbita pepo. F1 Hybrid. Non-GMO. Annual. 90 days to maturity from seed. 2017 AAS Regional Winner. Winter Squash Sugaretti F1 prolifically produces a generous...
Squash Seeds - Winter - Triamble (Organic)
105 days to maturity. Cucurbita maxima. Organic Triamble Winter Squash Seeds. Non-GMO, annual, organic, heirloom, open-pollinated. Suitable for growing in fields, garden plots, and raised beds. An unusually beautiful Australian...
Squash Seeds - Winter - Hubbard Anna Swartz
Hubbard Anna Swartz Winter Squash Seeds. 90 - 100 days to maturity. Cucurbita maxima. Annual. Heirloom. A family heirloom was given to Anna Swartz by a friend in the 1950's....
Pumpkin Seeds - Autumn Moon and Ghoulie Mix
80-90 Days to maturity. Cucurbita pepo. Autumn Moon & Ghoulie Mixed Pumpkin Vegetable Seeds. Non-GMO, annual, hybrid pie pumpkins. This perfect mix combines seeds for Autumn Moon F1 and Ghoulie...
Squash Seeds - Winter - Moore Gold
100 Days to maturity. Cucurbita maxima. Moore Gold Winter Squash Seeds. Non-GMO, annual, open-pollinated, heirloom. Suitable for growing in fields, containers, garden plots, raised beds, and greenhouses. Resistant to common...
Squash Seeds - Winter - Zao Feng Hybrid
95-105 Days to maturity. Cucurbita maxima x Cucurbita moschata. Zao Feng Hybrid Squash Seeds. Non-GMO, annual, F1 hybrid. Suitable for growing in fields, containers, garden plots, raised beds, and greenhouses....
Squash Seeds - Winter - New Zealand Blue
110 Days to maturity. Cucurbita maxima. New Zealand Blue Winter Squash Seeds. Non-GMO, annual, open-pollinated, heirloom. Suitable for growing in fields, containers, garden plots, raised beds, and greenhouses. New Zealand...
Squash Seeds - Winter - Blue Banana
80-120 Days to maturity. Cucurbita maxima. Winter Blue Banana Squash Seeds. Non-GMO, annual, open-pollinated. A rare heirloom winter squash, Blue Banana produces large, elongated fruits averaging 18–24 inches long and...
Pumpkin Seeds - Baby Boo
95 Days to maturity. Cucurbita pepo. Baby Boo Pumpkin Vegetable Seeds. Non-GMO, annual, open-pollinated mini pumpkin squash seeds. These pumpkins are small and white. They will look perfect on the...
Squash Seeds - Winter - Strawberry Crown
Strawberry Crown Winter Squash Seeds. 110 days to maturity. Cucurbita maxima. Heirloom, Annual. Originated from Brazil. Strawberry Crown is a beautiful winter squash with excellent color and delicious qualities. About...
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