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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Squash Seeds - Winter - Pilgrim Hybrid (Organic)
80-90 Days to maturity. Cucurbita moschata . Organic Pilgrim Hybrid Squash Seeds. Non-GMO, annual, organic, F1 hybrid. Suitable for growing in fields, containers, garden plots, raised beds, and greenhouses. Pilgrim...
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...
Gourd Seeds - Caveman Club - Organic
Organic Caveman's Club Gourd Seeds. 130 days to maturity. Lagenaria siceraria. Heirloom, Non-GMO, Annual. Dark green 10-16 in. long 7-14 lb shiny fruit hard shell has knobby protrusions. Approx. 840...
Pink Oyster ‘Spray & Grow’ Mushroom Growing Kit
Fulfilled by our friends at North Spore Pink Oyster mushrooms aren’t just strikingly beautiful. They are also succulent and savory, and are perfect sauteed or added to pastas, pizzas, and...
Nasturtium - Jewel Mix (Organic) - Microgreens Seeds
14-16 Days to Harvest. Tropaeolum majus. Organic Jewel Mix Nasturtium Microgreen Seeds. Non-GMO, organic microgreen seeds. Jewel Mix Nasturtium produces a beautiful large-leaf microgreen with a peppery flavor. Mix these...
Gourd Seeds - Bottle - Organic
Organic Bottle Gourd Seeds. 120 days to maturity. Lagenaria siceraria. Open Pollinated, Non-GMO, Annual. Approx. 188 Seeds/oz. Download Free Vegetable Growing Guide PDF Gourd Seeds - Bottle - Organic Download...
Tomato Seeds - Slicing - Boxcar Willie (Organic)
80 Days to maturity (from transplant). Solanum lycopersicum. Organic Boxcar Willie Tomato Seeds. Non-GMO, annual, organic, open-pollinated, heirloom, indeterminate, slicing tomato. Suitable for growing in garden plots, raised beds, and...
Sunflower Seeds - Velvet Queen (Organic)
90-110 Days to maturity. Helianthus annuus. Organic Velvet Queen Sunflower Seeds: Non-GMO. Open Pollinated. Organic. Ornamental. Annual. Heirloom. Velvet Queen seeds grow one of the summer's most exclusive and rare...
Squash Seeds - Winter - Goldetti Hybrid (Organic)
100 Days to maturity. Cucurbita pepo. Organic Goldetti Hybrid Winter Squash Vegetable Seeds. Non-GMO, annual, organic, high-yielding F1 hybrid winter squash. These rounded, cylindrical golden fruits are 10-11 inches long...
Rhubarb Seeds (Organic)
700 Days to maturity. Rheum rhabarbarum. Organic Rhubarb Seeds. Non-GMO, organic, open-pollinated, perennial. Suitable for growing in garden plots, raised beds, and fields. Rhubarb is one of the garden's most...
Beet - Rainbow Blend (Organic) - Microgreen Seeds
12-23 Days to Harvest. Beta vulgaris. Organic Rainbow Blend Beet Microgreen Seeds. Non-GMO, organic, open-pollinated, heirloom. This colorful organic blend combines multiple beet varieties to produce a tray of microgreens...
Radish Seeds - Pink Summercicle (Organic)
32-40 days to maturity. Raphanus sativus. Organic Pink Summercicle Radish Seeds. Non-GMO, organic, annual, open-pollinated, heirloom radish seed. Suitable for growing in garden plots, raised beds, containers, and fields. Organic...
Seedboy Organic Herb Garden Kit
Bring fresh, fragrant herbs into your home with ease. Transform any sunny windowsill into your own edible garden. This Seedboy Complete Organic 10-Herb Garden Kit is an all-in-one indoor growing...
‘Spectrum 10’ Organic Multi-Mushroom Capsules
Fulfilled by our friends at North Spore Naturally support total system wellness with our potent, organic, multi-mushroom 'Spectrum 10’ blend. This full-spectrum supplement was formulated to promote focus and clarity,...
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...
Caraway Seeds (Organic) - Clearance Seeds
31% Germination - Non-refundable clearance seeds. 455 Days to maturity. Caraway Seeds. Caraway is an attractive and useful plant suitable for flower, herb, and kitchen gardens. The fruit, which contains...
Pepper Seeds - Hot - Black Hungarian (Organic)
70-79 Days to maturity (from transplant). Capsicum annuum. Organic Black Hungarian Pepper Seeds. Non-GMO, annual, open-pollinated, heirloom, hot-type pepper with mild heat levels. 1,500 to 2,500 Scoville Heat Units. Suitable...
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