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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Basil Seeds - Red Rubin - Microgreens Seeds
68 Days. Annual. A dark-purple variety in both leaf and stem. Perfect for microgreens, this strain will also produce nice Italian large leaf type leaves with not only great color...
Lettuce Seeds - Red Romaine
Lactuca sativa (40 days) Red Romaine Lettuce has long crunchy spoon shaped leaves that start green and fade to profuse purple/red. Leaves are 12" tall and the plant is about...
Corn Seeds - Sweet - Jubilee F1 Hybrid
80-89 Days to maturity. Zea mays. Jubilee F1 Hybrid Corn Seeds. Non-GMO, annual, hybrid, Sweet Corn. Suitable for growing in garden plots or raised beds. Corn tolerates heat and drought-prone...
Tomato Seeds - Cherry - Red Pear
70 Days to maturity (from transplant). Solanum lycopersicum. Red Pear Tomato Seeds. Non-GMO, annual, open-pollinated, heirloom, indeterminate cherry tomato. Suitable for growing in garden plots, raised beds, and greenhouses. The...
Tomato Seeds - Slicing - Brandywine Red Potato Leaf (Organic)
80-90 Days to maturity (from transplant). Solanum lycopersicum. Organic Brandywine Red Tomato Seeds. Non-GMO, warm season annual, organic, open-pollinated, heirloom, potato leaf, indeterminate, slicing tomato. Suitable for growing in garden...
Cucumber Seeds - Beit Alpha CMR/MMR
The Beit Alpha CMR/MMR cucumber is an excellent addition to any home garden. Each cucumber has a medium green exterior and very small black spine. This cucumber grows straight and...
Fenugreek (Organic) - Herb Seeds
Non-GMO, Open Pollinated. Heirloom Organic Fenugreek Herb Garden Seed from True Leaf Market. Trigonella foenum-graecum. Organic Fenugreek is a warm fast-maturing annual that's been used as an incense dating back...
Alyssum Seeds - Basket of Gold
56-63 Days to maturity. Aurinia saxatilis syn. Alyssum saxatile. Basket of Gold Alyssum seeds. Non-GMO, Open-Pollinated, Perennial. Basket of Gold Alyssum flower seeds promise some of the most tolerant and...
Gomphrena Seeds - Gnome Series
2nd year maturity. Gomphrena globosa. Gomphrena Gnome Series Seeds. Non-GMO, Annual. Gnome Series seeds grow one of the summer's most unique, vigorous, and exclusive blooms, boasting exotic globe-shaped gomphrena heads....
Beet Seeds - Cylindra - Organic
(60 days) This beet dates back to the 1880s. Also known as the "Formanova". Dark red, cylindrical and about 6-9"s long. This is not your typical beet as it is...
Melon Seeds - Charentais (Organic)
90 Days to maturity. Cucumis melo var. inodorus. Organic Charentais Melon Seeds. A non-GMO, annual, organic, open-pollinated, heirloom, heat-tolerant specialty melon. Suitable for growing in containers, garden plots, raised beds,...
Amaranth Seeds - Polish - Organic
Certified Organic by Oregon Tilth. 250 mg packet. Amaranthus. 60 days to maturity. From Wisconsin farmer Richard DeWild. This amaranth is one of the best tasting amaranth varieties we sell....
Cucumber Seeds - Palace Pride - Hybrid
55-60 Days to maturity. Cucumis sativus ‘Palace Pride’. Palace Pride Cucumber Seeds. Warm-season annual hybrid. Non-GMO. Palace Pride is a sooyow variety and yields a prolific crop of fruits with...
Seed Starter Kit - Salad
Start your own salad garden seeds indoors and get a jump on the growing season. Also perfect for transplanting to indoor planters for year-round container gardening. Cultivate your own fresh,...
Radicchio Seeds - Rouge de Verona
Rouge De Verona Radicchio is an heirloom plant that can be compared to a cross between a cabbage and lettuce. Ready in about 80 days, Roufe De Verona can be...
Lettuce Seeds - Crisphead - Great Lakes Mesa 659
Great Lakes Mesa 659 crisphead lettuce is often found at grocery stores. Round iceberg heads are strong and firm with uniform leaves. Download Free Vegetable Growing Guide PDF Lettuce Seeds...
Chinese Cabbage Seeds - Aichi
70 Days to maturity. Brassica rapa var Pekinensis ‘Aichi’. Aichi Chinese Cabbage Heirloom Seeds. Annual. This very old traditional, dento yasai, Chinese cabbage variety is from the Aichi Prefecture of...
Pepper Seeds - Hot - Purple Tiger
90 Days to maturity (from transplant). Capsicum annuum. Purple Tiger Pepper Seeds. Non-GMO, annual, open-pollinated, heirloom, hot-type pepper with medium heat levels. 2,500 to 5,000 Scoville Heat Units. Suitable for...
Wildflower Seeds - Monarch Butterfly Mix
Monarch Butterfly Mix. Garden Flower Mix. 13 Varieties of Assorted Flower Seeds. Ornamental. Heirloom. Non GMO. Assorted mix of 13 varieties of wildflowers including Butterfly Milkweed, Aster, Purple Coneflower, Rocket...
Spinach Seeds - Lakeside - Hybrid
Spinach Seeds - Lakeside - Hybrid. Non-GMO. Spinacea oleracea. 25-30 days maturity for baby leaf, 40-60 days to full maturity. Cool season annual. Lakeside has uniform thick dark green smooth...
Arugula (Organic) Microgreens Seeds
6-8 days. Organic Arugula is easy to grow and grows fast as a microgreen. It's a favorite and generally considered a staple of the spicier side of microgreens and baby...
Cucumber Seeds - Spacemaster (Organic)
65 Days to maturity. Cucumis sativus. Organic Spacemaster Cucumber Seeds. Non-GMO, annual, organic, open-pollinated, heirloom, monoecious, pickling, or slicing cucumber. Suitable for growing in fields, containers (with support), garden plots,...
Garbanzo Bean (Organic) - Cover Crop Seeds
100 Days. Cicer arietinum. Cover Crop. Organic. Heirloom. Similar to Daikon radish and mustard cover crops, Organic garbanzo bean seed is grown for its uniquely deep taproot known to break...
Pumpkin Seeds - Jarrahdale (Organic)
Cucurbita maxima. (100 days) A New Zealand heirloom, Jarrahdale Pumpkin has a slate blue, ribbed exterior and a deep delicious orange interior flesh. The flesh is dry, string less, sweet...
Lettuce Seeds - Jericho (Organic)
Silky smooth neon green romaine leaves reach for the sky in this amazing lettuce with origins in the desert. Jericho hails from Israel and is no stranger to the heat....
Tomato Seeds - Cherry - Black Cherry (Organic)
75 Days to maturity (from transplant). Solanum lycoperscium. Tomato - Black Cherry (Organic) Tomato Seeds. Non-GMO, annual, organic, heirloom, AAS winner, indeterminate, slicing, paste, salad, cherry tomato. Suitable for growing...
Onion Seeds - Short - Early White Grano PRR
100-110 Days to maturity. Allium cepa. Early White Grano PRR Onion Seeds. Non-GMO, annual, open-pollinated, heirloom, bulbing, short-day onion. Suitable for growing in greenhouses, garden plots, and raised beds. Resistant...
Onion Sets - Spanish Yellow
100 Sets This is a pre-order item and is expected to ship in March to April for spring planting. Other seeds, supplies, or kits ordered with this product may ship...
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