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.
Indoors (fresh harvests):
-
Microgreens: peas, broccoli, sunflowers, arugula
-
Sprouts: alfalfa, broccoli, radish, mung
-
Herbs & greens under lights: chives, parsley, mint
Transplants to move outdoors: Most warm-season crops should already be in the ground. If you have heat-tolerant starts on hand, get them out early in the month before conditions get too stressful.
Crops that can be directly sown outdoors in May: okra, sweet potato slips, cowpeas, yard-long beans, Malabar spinach, Armenian cucumber, and other heat-tolerant varieties. Standard cucumbers, squash, and beans can still go in early May in many areas.
Cover crops: cowpeas, sunn hemp, buckwheat, sorghum-sudangrass
Note: Cool-season crops are wrapping up. The focus shifts to heat-tolerant varieties and keeping the soil covered.
Tip: A Southern California zone 10 can be very different from a Florida zone 10. 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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Chives Seeds (Organic)
60 days. Organic Chives Culinary Herb Seeds. Allium schoenoprasum. Perennial. Non-GMO. A member of the onion family along with garlic and leeks, Organic chives are a smaller, more tubular relative...
Chives Seeds
Non-GMO, Heirloom Chives Herb Garden Seed from True Leaf Market. Allium schoenoprasum. Chives are native to regions in Asia and Europe. This Chive cultivar is common in the U.S. and...
Wildflower Seeds - Bee Mix
50-365 Days to maturity. Bee Friendly Wildflower Seeds Mix. A non-GMO mix of annuals and perennial bee-friendly wildflowers for zones 3-9. The Bee Friendly Wildflower Mix grows some of the...
Impatiens Seeds - Accent Series
70-77 Days to maturity. Impatiens walleriana. Accent Series Impatiens Seeds. Non-GMO, hybrid, annual. Premium Quality Seeds. Accent Series seeds deliver the country's most popularly grown and undisputed summertime bloom. Impatiens...
Strawberry Seeds - Berries Galore Hybrid Pink
Package of 100 seeds. 75 days. Everbearing runner variety. In full sun, medium-large fruit saturated with sweetness and nutritious goodness; a fast grower; can be harvested every 3 to 4...
Zinnia Seeds - Profusion Series (Coated)
54-70 Days to maturity. Zinnia elegans x angustifolia. Profusion Series Zinnia Seeds. Non-GMO, organic, annual. Profusion Series Zinnia flower seeds promise to turn your tired summer bedding into an award-winning...
Zinnia Seeds - Magellan Series (Coated)
55-60 Days to maturity. Zinnia elegans. Magellan Series Zinnia Seeds. Non-GMO, organic, F1 hybrid, annual. Magellan Zinnia Series seeds produce tough, resilient zinnias, best suited for gardens prone to heat...
Echinacea Seeds - Magnus
70-84 days maturity. Echinacea purpurea. Echinacea Magnus Seeds. Non-GMO, Heirloom, Perennial. Magnus echinacea seeds grow one of the summer's most celebrated and resilient blooms. These sturdy stems and flat petals...
Amaranthus Seeds - Elephant Head (Organic)
Amaranthus sp. One gram will sow 45 feet at (thinned) spacing of 12-18" on 24" rows. Organic Elephant Head Amaranth 75 days to harvest. The elongated, dense, flower spike of...
Hibiscus Seeds - Luna Series
70-84 days to maturity. Hibiscus moscheutos. Hibiscus Luna Series Seeds. Non-GMO, F1 hybrid, perennial. Luna Series hibiscus seeds promise robust and long-lasting blooms to your garden when other flowers can...
Celosia Seeds - Plumed - Castle Series
70-85 Days to maturity. Celosia plumosa. Castle Series Plumed Celosia Flower Seeds. Non-GMO, Annual flower. These classic Plumed Celosias are high performers throughout the summer, boasting densely packed and vibrantly...
Echinacea Seeds - Bravado
70-84 days maturity. Echinacea purpurea. Echinacea Bravado Seeds. Non-GMO, Perennial. Bravado echinacea seeds grow one of summer's most celebrated and resilient blooms boasting classic 4-5 inch rosy pink "daisy-like" coneflowers....
Lobelia Seeds - Regatta Series (MSP)
77-84 Days to maturity. Lobelia erinus. Regatta Series Lobelia Seeds. Non-GMO, open-pollinated, Premium Quality Seeds, annual. Open Pollinated. Regatta Series seeds promise exotic, radiant, and fragrant lobelia mounds that promise...
Hypoestes Seeds - Splash Select Series
74-84 Days to maturity. Hypoestes phyllostachya. Splash Select Series Hypoestes Seeds. Non-GMO, open-pollinated, Premium Quality Seeds, annual. Open Pollinated. Splash Select Series Hypoestes seeds grow adorable, colorful foliage for shaded...
Zinnia Seeds - Pollinator Flower Mix
Pollinator Mix. Zinnia. Zinnia elegans. 60-80 days. Non-GMO. Open pollinated. Our zinnia pollinator mix attracts hummingbirds and butterflies with a wildflower blend that grows a season-long charm that lives up...
Salvia Seeds - Sizzler Series
63-66 Days to maturity. Salvia splendens. Salvia Sizzler Series Seeds. Non-GMO, perennial or annual. Ornamental. Sizzler Series seeds promise exotic, early-blooming, and easy-to-grow salvia plants for especially hot, humid gardens...
Cosmos Seeds - Sea Shells
75-90 Days to maturity. Cosmos bipinnatus. Sea Shells Cosmos Seeds. Non-GMO, annual, open-pollinated. This unique cosmos variety has multiple tubular petals that create a unique and captivating shape. Sea Shell...
Zinnia Seeds - Cut and Come Again (Organic)
60-70 Days to Maturity. Zinnia elegans. Organic Cut and Come Again Zinnia Flower Seeds. Non-GMO, organic, heirloom, open-pollinated flowers. Annual in zones 3, 4, 5, 6, 7, 8, 9, and...
Stock Flower Seeds - Harmony Mix
77-84 Days to maturity. Matthiola incana. Harmony Mix Stock Seeds. Non-GMO, annual, open-pollinated, cold tolerant. Harmony Mix Stock seeds grow fantastically compact and exceptionally fragrant stock flowers that are sure...
Iberis (Candytuft) Seeds - Dwarf Fairy Mixture
70-77 days. Dwarf Fairy Mix Candytuft seeds promise an authentic and hardy touch of the Mediterranean in your garden or patio. Dwarf Fairy Mixture iberis seeds grow herbaceous 8-10" tall...
Gypsophila Seeds - Gypsy Deep Rose
56-63 Days to maturity. Gypsophila muralis’. Gypsophila Gypsy Deep Rose Seeds. Non-GMO, Annual. Gypsy Deep Rose Gypsophila seeds are an essential and award-winning crop whether kept in the garden or...
Bellis (English Daisy) Seeds - Pomponette Mix
65-85 Days to maturity. Bellis perennis. Pomponette Mixed Bellis English Daisy Seeds. Non-GMO, cool-season, open-pollinated, self-seeding, short-lived perennial. Pomponette Mixed Bellis English Daisy flowers present a low-growing rosette of cupped...
Bellis (English Daisy) Seeds - Mixed
60-75 Days to maturity. Bellis perennis. Mixed English Daisy Seeds. Non-GMO, perennial in zones 3-9. Mixed English Daisy flowers are low-growing and the perfect pop of color for rock gardens....
California Poppy Seeds - Carmine King
60-75 Days to Maturity. Eschscholzia californica. Carmine King California Poppy Flower Seeds. Non-GMO, hybrid, annual flower in zones 3, 4, 5, 6, 7, 8, 9, and 10. Deer resistant. Attracts...
Seed Potatoes - Purple Viking (Organic)
This item is a pre-order item and is expected to ship in March for spring planting. Other seeds, supplies, or kits ordered with this product may ship separately. This product...
Zinnia Seeds - Cactus Flowered Mix
75-90 Days to Maturity. Zinnia elegans. Zinnia Cactus Flowered Mix Flower Seeds. Non-GMO, open-pollinated, annual, edible, deer-resistant, and attracts pollinators. Displays pink, purple, red, orange, white, and yellow colored blooms...
Zinnia Seeds - Queeny Lime Blush
75-85 Days to maturity. Zinnia elegans. Queeny Lime Blush Zinnia Flower Seeds. Non-GMO, open-pollinated, annual. Queeny Lime Blush Zinnia Flowers are strikingly unique zinnias that produce large pom-pom blooms of...
Begonia Tubers - Samba Pastel Mixture
4 Bulb Bag This is a pre-order item and is expected to ship from February to March. Other seeds, supplies, or kits ordered with this product will ship separately. This...
Gladiolus Bulbs - Mardi Gras Mixture
10 Bulb Bag This is a pre-order item and is expected to ship from February to March. Other seeds, supplies, or kits ordered with this product will ship separately. This...
Calla Lily Bulbs - Mixture
5 Bulb Bag This is a pre-order item and is expected to ship from March to April. Other seeds, supplies, or kits ordered with this product will ship separately. This...
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