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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Wildflower Seeds - Annual Mix
The Annual Wildflower Mix is a gorgeous blend of 21 annual wildflowers. Featuring a dazzling display of colors–including orange, purple, blue, pink, white, and yellow. Attracts pollinators and other beneficial...
Hyacinth Bulbs - Blue Jacket
5 Bulb Bag This is a pre-order item that is expected to ship in Late October to November for fall planting. Other seeds, supplies, or kits ordered with this product...
Columbine Seeds - Blue and White Swan
2nd Year Maturity. Blue and White Swan columbine seeds promise some of the brightest, fullest, and most vivid blooms available in any garden. Blue and White Swan seeds grow dense...
Bearded Iris Bulbs - Dark Blue
This is a pre-order item that is expected to ship in Late October to November for fall planting. Other seeds, supplies, or kits ordered with this product will ship separately....
Corn Seeds - Popcorn - Calico
100-105 Days to maturity. Zea mays. Calico Corn Seeds. Non-GMO, annual, open-pollinated, heirloom, popcorn. Suitable for growing in garden plots or raised beds. Corn tolerates heat and drought-prone regions. Annual...
Anemone Bulbs - Galilee Blue
10 Bulb Bag This is a pre-order item that is expected to ship in Late October to November for fall planting. Other seeds, supplies, or kits ordered with this product...
Kale Seeds - Black Magic (Organic)
70-80 Days to maturity. Brassica oleracea var. sabellica. Organic Black Magic Kale Vegetable Seeds. Non-GMO, annual, organic, open-pollinated kale seeds. Improved selection of lacinato kale with wider leaves and consistent...
Bearded Iris Bulbs - Light Blue
This is a pre-order item that is expected to ship in Late October to November for fall planting. Other seeds, supplies, or kits ordered with this product will ship separately....
Blueberry Roots - Earliblue
1 Root This is a pre-order item and is expected to ship in mid-March for spring planting. Other seeds, supplies, or kits ordered with this product may ship separately. This...
Blueberry Roots - Northland
1 Root This is a pre-order item and is expected to ship in mid-March for spring planting. Other seeds, supplies, or kits ordered with this product may ship separately. This...
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