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.
Indoors (fresh harvests):
-
Microgreens: peas, broccoli, sunflowers, arugula
-
Sprouts: alfalfa, broccoli, radish, mung
-
Herbs & greens under lights: chives, parsley, mint
Transplants to move outdoors (harden first): pepper, tomato, eggplant, melons, basil, okra — these should go out early May if not already in the ground
Crops that can be directly sown outdoors in May: beans, corn, cucumber, squash, melons, okra, sunflower, basil, dill, sweet potato slips. Succession sow beets, carrots, and radishes early in the month before heat sets in.
Cover crops: buckwheat, cowpeas, sorghum-sudangrass
Note: Warm-season crops should be going directly outdoors now, not starting under lights.
Tip: An Olympia, WA zone 8 is very different from a Jackson, MS zone 8. Consider checking with your state Extension Service office for more specific recommendations and guidelines.
Use your USDA zone as a guide. Microclimates matter — coastal/urban spots run warmer; high elevation runs colder.
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Moringa Seeds
160-170 Days to maturity. Moringa oleifera. Moringa Seeds. Non-GMO, Perennial, Deciduous Softwood Tree. Moringa is also known as the Drumstick Tree, Horseradish Tree, and Ben Oil Tree. It is enjoyed...
Achillea Seeds - White Yarrow
2nd Year Maturity. Perennial. Non-GMO, Heirloom White Yarrow Achillea Herb Garden Seed from True Leaf Market. Achillea millefolium. Yarrow is a flowering perennial often used as a medicinal remedy or...
Lemon Mint Seeds
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Lavender Seeds - Hidcote Blue
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Caraway Seeds
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Rosemary Seeds (Organic)
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Chinese Toon Seeds - North Red
40-50 Days to maturity. Toona sinensis A. juss. Chinese Toon Seeds - North Red. Heirloom, Non-GMO. Purple type. Vigorous growing. Keep the seeds in a cool and dry place. However,...
Achillea Seeds - Golden Yarrow
2nd year maturity. Achillea filipendulina. Golden Yarrow Seeds. Non-GMO, perennial, heirloom, open-pollinated. This crop is suitable for garden plots, raised beds, and ornamental borders. Golden Yarrow (Cloth of Gold) is...
Caraway Seeds (Organic)
455 Days to maturity (2nd year). Carum carvi. Organic Caraway Seeds. Non-GMO, organic, open-pollinated, heirloom, biennial herb seed. Attracts pollinators and is both cold and drought-tolerant once established. Caraway is...
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