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.
50
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Peony Bulbs - Dr. Alexander Fleming
This is a pre-order item that is expected to ship in October for fall planting. Other seeds, supplies, or kits ordered with this product will ship separately. This product only...
Daffodil Bulbs - Large Cupped 'Carlton'
10 Bulbs This is a pre-order item that is expected to ship in Late October to November for fall planting in warm climates, or as houseplants indoors. Other seeds, supplies,...
Alyssum Seeds - Mountain of Gold
56-63 Days to maturity. Aurinia saxatilis. Mountain of Gold Alyssum Seeds. Non-GMO, Open-Pollinated, Perennial. Open-pollinated seeds. Mountain of Gold Alyssum flower seeds are an eye-catching, elegant, and captivating addition to...
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....
Hyacinth Bulbs - Blue Jacket
5 Bulb Bag This is a pre-order item that is expected to ship in Late October to November for fall planting. Other seeds, supplies, or kits ordered with this product...
Columbine Seeds - Blue and White Swan
2nd Year Maturity. Blue and White Swan columbine seeds promise some of the brightest, fullest, and most vivid blooms available in any garden. Blue and White Swan seeds grow dense...
Crocus Bulbs - Mixed Colors
10 Bulb Bag This is a pre-order item that is expected to ship in Late October to November for fall planting. Other seeds, supplies, or kits ordered with this product...
Arabis Seeds - Spring Charm
2nd-year maturity. Arabis blepharophylla. Spring Charm Arabis Seeds. Non-GMO, Open-pollinated, Perennial. Spring Charm seeds easily grow eye-catching and fragrant Arabis flowers, bursting in a vivid blend of fuchsia and lavender....
Peony Bulbs - Duchess de Nemours
This is a pre-order item that is expected to ship in October for fall planting. Other seeds, supplies, or kits ordered with this product will ship separately. This product only...
Hyacinth Bulbs - Gipsy Princess
5 Bulb Bag This is a pre-order item that is expected to ship in La Yte October to November for fall planting. Other seeds, supplies, or kits ordered with this...
Grape Hyacinth Bulbs - Muscari Armeniacum
20 Bulb Bag This is a pre-order item that is expected to ship in Late October to November for fall planting. Other seeds, supplies, or kits ordered with this product...
Daffodil Bulbs - Trumpet 'Mount Hood'
10 Bulb Bag This is a pre-order item that is expected to ship in Late October to November for fall planting. Other seeds, supplies, or kits ordered with this product...
Bearded Iris Bulbs - Red
This is a pre-order item that is expected to ship in Late October to November for fall planting. Other seeds, supplies, or kits ordered with this product will ship separately....
Peony Bulbs - Sorbet
This is a pre-order item that is expected to ship in October for fall planting. Other seeds, supplies, or kits ordered with this product will ship separately. This product only...
Bearded Iris Bulbs - Dark Blue
This is a pre-order item that is expected to ship in Late October to November for fall planting. Other seeds, supplies, or kits ordered with this product will ship separately....
Daffodil Bulbs - Mixed
10 Bulb Bag Shipping Now! This product only ships to the lower 48 states. No shipping outside the USA. 90-120 Days to maturity. Fall Planting. Spring Blooming Narcissus pseudonarcissus. Mixed...
Asparagus Crowns - Millenium
This 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 only...
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...
Begonia Tubers - Bi-Color Picotee 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...
Rhubarb Crowns - Crimson Red
This item 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 separately....
Dahlia Bulbs - Arabian Night
2 Tuber 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...
Grape Roots - Seedless - Concord
1 Root This is a pre-order item and is expected to ship in mid-March for spring planting. Other seeds, supplies, or kits ordered with this product may ship separately. Can...
Raspberry Roots - Fall Gold
1 Root This 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...
Grape Roots - Seedless - Canadice
1 Root This is a pre-order item and is expected to ship in mid-March for spring planting. Other seeds, supplies, or kits ordered with this product may ship separately. Can...
Blackberry Roots - Chester
1 Root This 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...
Ranunculus Bulbs - Aviv Red
10 Bulbs This is a pre-order item and is expected to ship in Early March for spring planting. Other seeds, supplies, or kits ordered with this product may ship separately....
Blueberry Roots - Earliblue
1 Root This is a pre-order item and is expected to ship in mid-March for spring planting. Other seeds, supplies, or kits ordered with this product may ship separately. This...
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