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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Radish Seeds - Purple Plum
Non-GMO, Heirloom Purple Plum Radish Seeds. 25-30 days. Bright purple skin, firm white flesh, crisp, sweet and mild all season, never pithy of hot, hardy and adaptable. Download Free Vegetable...
Spinach Seeds - Viroflay
Non-GMO, Heirloom Viroflay Spinach Vegetable Garden Seed from True Leaf Market. Spinacia oleracea. Viroflay Spinach Seeds originate from France around the 17th century and have been cultivated in Paris. The...
Mustard Seeds - Osaka Purple
21 to 45 days. An outstanding mustard of dark green-purple leaves with bright white veins. Harvest at 4 to 6 inches for salad or allow it to grow to full...
Radish Seeds - Sparkler
Non-GMO, Heirloom Sparkler Radish Seeds. This fast cool season crop is a delight with its pretty red skin that changes to white at the tip. Matures in 25 to 30...
Radish Seeds - Crimson Giant
Raphanus sativus (29 to 40 days) Sometimes called Crimson "Giant Globe Radish" or "Giant Butter Radish". Crimson Giant Radish seeds grow large 1 1/2 - 2" globe shaped crimson red...
Radish Seeds - Shirahime Hatsuka Daikon
22 to 30 Days to maturity. Raphanus sativus. Shirashime Hatsuka Daikon Radish Heirloom Seeds. Cool Season Annual. A uniquely small daikon radish, Shirashime Hatsuka is hardy, quick to harvest, and...
Radish Seeds - Purple Plum - Organic
Raphanus sativas. (30 days) Purple Plum Radish produces deep plum purple globe shaped radishes with tender, crisp, white flesh. Organic Purple Plum Radish Seeds A gourmet radish for sure and...
Radish Seeds - Fiesta Blend
Fiesta Blend Radish Seeds. 27 - 35 days to maturity. Can be grown in containers. Raphanus sativus. Open Pollinated. Annual. The perfect addition to any salad. ~ 6,800 seeds/ounce. Radish...
Radish Seeds - Pink Summercicle
32-40 Days to maturity. Raphanus sativus. Pink Summercicle Radish Seeds. Non-GMO, annual, open-pollinated, heirloom, slow bolting, spring radish. Pink Summercicle (Shunkyo Semi-Long) is known for its delightful spicy flavor paired...
Radish Seeds - Sparkler White Top - Organic
Raphanus sativus (23 days) Very quick to produce, spicy when small (about lg marble size) and become more mild when larger. Attractive red radish that looks like it has been...
Radish Seeds - Hong Vit
Radish Seeds - Hong Vit. Heirloom, Non-GMO. Annual. Raphanus sativus. Up to 10 days, 20 days baby leaf. Cool season. This variety is one of the most popular grown radish...
Paperwhites Bulbs - 15/16 - Ziva
10 Bulb Bag This is a pre-order item that is expected to ship in Late October to November for fall planting in warm climates, or as houseplants indoors. Other seeds,...
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