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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Pepper Seeds - Hot - Cowhorn Hot
90 Days to maturity (from transplant). Capsicum annuum. Cowhorn Hot Pepper Seeds. Non-GMO, annual, open-pollinated, heirloom, hot pepper with medium heat levels. 2,500 to 5,000 Scoville Heat Units. Suitable for...
Tomato Seeds - Slicing - Paul Robeson
74 Days to maturity (from transplant). Solanum lycopersicum. Paul Robeson Tomato Seeds. Non-GMO, warm season annual, open-pollinated, heirloom, indeterminate, slicing tomato. Suitable for growing in garden plots, raised beds, greenhouses,...
Chicory Seeds - Oasis
An excellent forage chicory that will give your animals high-quality feed when the cooler season crops give out in the heat of summer. This broad-leafed perennial is perfect to mix...
Gourds Seeds - Dipper Long Handle
110+ days. For carving, burning, painting or just looking at. Blossom end about 4 inches across with neck from 8 to 12 inches long. Usually curved but can be grown...
Tomato Seeds - Salad - Stupice
52-85 Days to maturity (from transplant). Solanum lycopersicum. Stupice Tomato Seeds. Non-GMO, warm season annual, open-pollinated, heirloom, semi-determinate, salad tomato. Suitable for growing in garden plots, raised beds, greenhouses, and...
Pepper Seeds - Hot - Korean Yeori Gochu - Wa...
100-110 Days to maturity (from transplant). Capsicum annuum. Wa Mae Wo - Yeori Gochu Pepper Seeds. Non-GMO, annual, hybrid, hot-type pepper. Suitable for growing in, garden plots, raised beds, and...
Chrysanthemum Greens Seeds - Garland Round Leaf
40-50 Days to maturity. Glebionis coronaria var. garland round leaf. Garland Round Leaf Chrysanthemum Greens Seeds. Cool-season annual heirloom. Non-GMO. Garland Round Leaf has large, medium-green oblong leaves that are...
Mustard Seeds - Mizuna - Organic
Organic Mizuna Mustard Seeds. 40 days to full maturity. 20 days to maturity for baby leaves. Can be grown in containers. Brassica japonica. Heirloom, Non-GMO, Annual. Can be grown as...
Squash Seeds - Tatume
Tatume is a summer squash popular in Mexico and Texas, round/oval med-dark green to yellow fruits with faint stripes. Squash are best at 5-7" in diameter. Firm, fine flavor with...
Cucumber Seeds - Greenhouse Long Burpless F1
46 Days to maturity. Cucumis sativus. Greenhouse Long Burpless Hybrid Cucumber Seeds. Non-GMO, annual, F1 hybrid, parthenocarpic, burpless, slicing cucumber. Suitable for growing in fields, containers (with support), garden plots,...
Orach Seeds - Aurora (Organic)
Atriplex hortensis. Brightest lights this side of chard. Red, gold, green, pink, carmine, and pure purple with Dayglow radiance. Organic Aurora Orach "Mountain Spinach" Native to the Alps, Orach (also...
Melon Seeds - Cantaloupe - Planters Jumbo
80-90 Days to maturity. Cucumis melo. Planters Jumbo Cantaloupe Melon Seeds. A non-GMO, annual, open-pollinated, heirloom, heat-tolerant Cantaloupe Melon. Suitable for growing in containers, garden plots, raised beds, and greenhouses....
Eggplant Seeds - Odyssey F1 Hybrid
(Solanum melongena) Eggplant, also known in europe as Aubergine. Bush gives you deep purple fruit with the classic pear shape. Eggplant Seeds - Odyssey F1 Hybrid Similar to the Florida...
Pepper Seeds - Sweet - Himo Togarashi
80-90 Days to maturity (from transplant). Capsicum annuum. Himo Togarashi Pepper Seeds. Non-GMO, annual, open-pollinated, heirloom, sweet pepper with no heat. 0 Scoville Heat Units. Suitable for growing in garden...
Mustard Seeds - Tokyo Bekana
21 to 45 days. Asian brassica somewhat like Pak Choi, but with narrower petioles and larger ruffled, light green leaves. Wonderful addition to salads or baby green mixes, or grow...
Squash Seeds - Summer - Scallop Jaune et Verte
50-55 days to maturity. Cucurbita pepo. Scallop Jaune et Verte Summer Squash Seeds. Non-GMO, heirloom, open-pollinated, warm-season annual. Suitable for fields, containers, raised beds, and garden plots. Produces unique, scalloped,...
Tomato Seeds - Cherry - Cherry Orange
75-80 Days to maturity (from transplant). Solanum lycoperscium. Cherry Orange Tomato Seeds. Non-GMO, annual, open-pollinated, heirloom, indeterminate, cherry tomato. Suitable for growing in garden plots, raised beds, and greenhouses. This...
Gourd Seeds - Nam Tao Yai - Hybrid
70-75 Days to maturity. Lagenaria siceraria. Warm-season annual hybrid. Nam Tao Yai Hybrid Seeds. This high-yielding variety is also known as White-flowered gourd, Upo, or Opo and has vigorous, multi-branched...
Lentil Seeds - Red - Organic
Organic Red Lentil Seeds. Lens culinaris. 80 to 110 days to maturity. Certified Organic by OTCO. Hardy Annual. Heirloom, Open Pollinated, Non-GMO. Used for vegetable gardening and sprouting. Approx 600...
Aquadulce Fava Bean - Cover Crop Seeds
80 Days. Vicia faba. Cover Crop. Heirloom. Open-Pollinated. Non-GMO Aquadulce fava bean cover crop seeds grow a versatile, restorative, and delicious garden vegetable able to be grown in both spring...
Pepper Seeds - Sweet - Jimmy Nardello (Organic)
65 to 75 Days to maturity (from transplant). Capsicum annuum. Jimmy Nardello (Organic) Pepper Seeds. Non-GMO, annual, organic, open-pollinated, heirloom, sweet-type, mild heat levels. 0 to 100 Scoville Heat Units....
Pepper Seeds - Hot - Cascabella
75-85 Days to maturity (from transplant). Capsicum annuum. Cascabella Pepper Seeds. Non-GMO, annual, open-pollinated, heirloom, hot pepper with medium heat levels. 1,500 to 4,000 Scoville Heat Units. Suitable for growing...
Pepper Seeds - Hot - Biquinho Yellow
90-95 Days to maturity (from transplant). Capsicum chinense. Biquinho Yellow Pepper Seeds. Non-GMO, annual, open-pollinated, heirloom, high yielding, hot-type pepper with mild heat levels. 500 to 1,000 Scoville Heat Units....
Watermelon Seeds - Giant - Black Diamond Yellow Belly
90 - 95 Days to maturity. Citrullus lanatus. Black Diamond Yellow Belly Watermelon Seeds. Non-GMO, annual, open-pollinated, heirloom, heat tolerant, seeded, giant watermelon. This watermelon has red flesh with a...
Cucumber Seeds - Double Yield (Organic)
50 Days to maturity. Cucumis sativus. Organic Double Yield Cucumber Seeds. Non-GMO, annual, organic, open-pollinated, heirloom, monoecious, pickling cucumber. Suitable for growing in fields, containers (with support), garden plots, raised...
Shallot Sets - Red
10 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...
Pea Seeds - Mammoth Melting Sugar - Organic
60-70 days. Pisum sativum Non-GMO. Heirloom. Sweet, sugary and tender this edible pod snow pea has made its place in home gardens for many years. Wilt resistant vines can grow...
Endive Seeds - Italian Red Stem Dandelion
50 days. Cichorium intybus. Red Stem Italian Dandelion Endive Seeds. Non-GMO, annual, heirloom, open-pollinated. This crop is suitable for garden plots, raised beds, and containers. Italian Red Stem Dandelion is...
Melon Seeds - Cantaloupe - Honey Rock (Organic)
80 Days to maturity. Cucumis melo. Organic Honey Rock Cantaloupe Melon Seeds. A non-GMO, annual, organic, open-pollinated, heirloom, AAS winner, heat-tolerant Cantaloupe Melon. Suitable for growing in containers, garden plots,...
Chinese Leek Seeds - Broad Leaved Nira
100+ days to maturity. Allium tuberosum ‘Broad Leaved Nira’. Broad Leaved Nira Chinese Leek Seeds. Non-GMO, cool-season perennial heirloom. This popular Chinese specialty herb is a vigorous perennial for its...
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