May is the main planting kickoff in cold-winter zones, when gardens finally move from starts and prep into full outdoor action. Early May often still favors hardy transplants and direct-sown cool-season crops, while mid-to-late May is when many areas can safely set out warm-season plants as frost risk drops. Keep hardening off seedlings, use row cover if nights run cold, and focus on steady watering and early weed control so young plants establish quickly.
Indoors (fresh harvests):
-
Microgreens: peas, broccoli, sunflowers, arugula
-
Sprouts: alfalfa, broccoli, radish, mung
-
Herbs & greens under lights: chives, parsley, mint
Crops to start indoors in good light: tomato, pepper, eggplant, basil, cucumber, squash, melons, zinnia, marigold
Transplants to move outdoors (harden first): broccoli, cabbage, cauliflower, kohlrabi, lettuce, onion, parsley, pansies, snapdragons — and by mid-to-late May, tomato, pepper, and eggplant as frost risk drops
Crops that can be directly sown outdoors in May: peas, spinach, kale, Swiss chard, beets, carrots, radishes, turnips, parsnip, dill, cilantro — and after last frost: beans, corn, cucumber, squash, sunflower, nasturtium, sweet peas
Cover crops: oats, field peas, hairy vetch, red clover
Tip: This zone group covers a lot of territory. Nothing replaces talking with experienced gardeners in your area and watching the weather closely.
Use your USDA zone as a guide. Microclimates matter — coastal/urban spots run warmer; high elevation runs colder.
50
100
true
//store.trueleafmarket.com/cdn/shop/t/54/assets/review-fallback.json?v=33078429469613971781712858278
Pea Seeds - Snap - Sugar Lace II
68 Days to maturity. Pisum sativum. Sugar Lace II Snap Pea Seeds. Non-GMO, annual, open-pollinated. This crop is suitable for garden plots, raised beds, and containers. Stringless, dark-green pods on...
Beet - Red Mammoth Mangel - Cover Crop Seeds
30-60 Days to termination. Red Mammoth Mangel Beet Seed. Non-GMO, annual, winter-killing (zone 2-8), forage-friendly. Red Mammoth Mangel is a classic fodder beet (a.k.a. mangelwrzel) grown for fast biomass, deep...
Cauliflower Seeds - Snowball Early
70-80 days to maturity. Brassica oleracea var. botrytis. Early Snowball Cauliflower Seeds. Non-GMO, annual, open-pollinated, heirloom cauliflower seeds. This is suitable for growing in garden plots, raised beds, containers, and...
Spinach Seeds - Correnta Hybrid
45 Days to maturity. Spinacia oleracea. Correnta Hybrid Spinach Vegetable Seeds. Non-GMO, annual, hybrid spinach seeds. This variety is known for its excellent heat tolerance, making it a great choice...
Snapdragon Seeds - Giant Tetra Mix
115-121 Days to maturity. Antirrhinum majus. Giant Tetra Mix Snapdragon Flower Seeds. Non-GMO, open-pollinated, annual. Deer resistant. Attracts pollinators. Displays rose, scarlet, pink, cream, and gold blooms from late spring...
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...
Seed Starter Kit - Petunia
Kickstart your garden with the Easy Wave Flag Mix Petunia Seed Starting Kit, designed to give you everything you need for a vibrant display of red, white, and purple-blue blooms....
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 - Red Rat's Tail - Microgreen Seeds
8-10 Days to harvest. Raphanus sativus. Red Rat’s Tail Radish Microgreen Seeds. These delicious radish microgreens have a mild spicy flavor and an attractive appearance. The cotyledon leaves are green...
Bloom Master Hanging Basket Kit - Petunia
Grow a stunning display of vibrant red, white, and purple-blue petunias with the Easy Wave Flag Mix Petunia Hanging Basket Kit. Perfect for both beginner and seasoned gardeners, this all-in-one...
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...
Barley Seeds - Belford
70-90 Days to Maturity. Hordeum vulgare. Belford Barley Seeds. Non-GMO, open-pollinated. Annual. Belford is a classic spring-type, six-row, hooded (beardless) barley that has been a trusted choice for home farmers...
Seed Starter Kit - Pansy
This comprehensive seed starter kit has everything you need to grow delightful pastel-colored pansies from seed. Designed for both beginners and experienced gardeners, this kit includes high-quality materials to ensure...
Bloom Master Hanging Basket Kit - Pansy
Our Bloom Master Hanging Basket Kits are perfect for any gardener who wishes to fill their patio, yard, garden, porch, or window with abundant flowers. The Pastel Mix Pansy Kit...
Rudbeckia Seeds - Gloriosa Double
130+ Days to Maturity. Rudbeckia hirta. Rudbeckia Double Gloriosa Flower Seeds. Non-GMO, biennial to short-lived perennial, open-pollinated, heirloom, AAS winning (1961) flower seeds. This double rudbeckia will bloom the first...
Carrot Seeds - Little Finger - Clearance Seeds
46% Germination - Non-refundable clearance seeds. 55 Days to maturity. Little Fingers Carrot Seeds. Little Fingers carrot seeds produce adorable mini carrots with a beautiful orange color, packed with flavor!...
Lettuce Seeds - Butterhead - Optima
Optima Butterhead Lettuce Seeds. 52 - 60 days to maturity from seed. Lactuca sativa. Heirloom. Annual. Boston type large framed lettuce with thick dark green leaves with excellent hear tolerance...
[
{
"featured_image": "files/1774371153_lettuce_leaf_lollo_rosso_organic_below_standard_low_germ_comp_d789bb65-9fff-41a0-8df6-522789d4aa23.jpg",
"secondary_image": "",
"price": 2000,
"handle": "lettuce-seeds-leaf-lollo-rosso-organic-clearance-seeds-1",
"title": "Lettuce Seeds - Leaf - Lollo Rosso (Organic) - Clearance Seeds",
"url": "/products/lettuce-seeds-leaf-lollo-rosso-organic-clearance-seeds-1",
"available": true
},
{
"featured_image": "files/1780432220_heat_tolerant_greens_collection_collage_close_up_comp_9a0205a5-bf81-4ff2-8692-d084d20d227c.jpg",
"secondary_image": "files/1780432220_heat_tolerant_greens_collection_collage_comp_0856de74-2e23-48ff-a952-6b48da3fd89e.jpg",
"price": 1247,
"handle": "seed-assortment-8-variety-heat-tolerant-greens-collection",
"title": "Seed Assortment - 8 Variety Heat Tolerant Greens Collection",
"url": "/products/seed-assortment-8-variety-heat-tolerant-greens-collection",
"available": true
},
{
"featured_image": "files/1744908130_daisy_gloriosa_double_flower_organic_wm_comp_30a7cfea-2d5d-4d9c-8bb4-91b3bb0c1278.jpg",
"secondary_image": "",
"price": 359,
"handle": "rudbeckia-seeds-gloriosa-double",
"title": "Rudbeckia Seeds - Gloriosa Double",
"url": "/products/rudbeckia-seeds-gloriosa-double",
"available": false
},
{
"featured_image": "files/1774387351_carrot_little_finger_below_standard_low_germ_comp_d724711c-2ef3-43b1-90e3-8ff754841c5e.jpg",
"secondary_image": "",
"price": 500,
"handle": "carrot-seeds-little-finger-clearance-seeds",
"title": "Carrot Seeds - Little Finger - Clearance Seeds",
"url": "/products/carrot-seeds-little-finger-clearance-seeds",
"available": false
},
{
"featured_image": "files/1774549319_pea_snap_sugar_lace_comp_4091f7bf-6ebe-46df-acfa-50d970a79f1b.jpg",
"secondary_image": "",
"price": 279,
"handle": "pea-seeds-snap-sugar-lace-ii",
"title": "Pea Seeds - Snap - Sugar Lace II",
"url": "/products/pea-seeds-snap-sugar-lace-ii",
"available": true
},
{
"featured_image": "files/red-mammoth-mangel-beet-seeds-comp.jpg",
"secondary_image": "products/Seed_Packet_ae7adb9a-0e85-445e-ae2f-7e5b722b64f5.jpg",
"price": 1116,
"handle": "beet-red-mammoth-mangel-cover-crop-seeds",
"title": "Beet - Red Mammoth Mangel - Cover Crop Seeds",
"url": "/products/beet-red-mammoth-mangel-cover-crop-seeds",
"available": true
},
{
"featured_image": "files/1774978787_cauliflower_snowball_early_comp_8a83451c-2c9d-45cc-8061-8033182230b5.jpg",
"secondary_image": "",
"price": 299,
"handle": "cauliflower-seeds-snowball-early",
"title": "Cauliflower Seeds - Snowball Early",
"url": "/products/cauliflower-seeds-snowball-early",
"available": true
},
{
"featured_image": "files/1751552450_spinach_correnta_hybrid_comp_a473bd77-9704-4e18-9cd9-4d01193d7241.jpg",
"secondary_image": "",
"price": 279,
"handle": "spinach-seeds-correnta-hybrid",
"title": "Spinach Seeds - Correnta Hybrid",
"url": "/products/spinach-seeds-correnta-hybrid",
"available": true
},
{
"featured_image": "files/1777481428_mix_snapdragon_giant_tetra_comp_1_eeee388b-87d6-412d-b463-331fb08e6bd8.jpg",
"secondary_image": "files/1777481428_mix_snapdragon_giant_tetra_comp_2_460a91ce-e3e2-4f17-86fa-a706bb8cae4e.jpg",
"price": 339,
"handle": "snapdragon-seeds-giant-tetra-mix",
"title": "Snapdragon Seeds - Giant Tetra Mix",
"url": "/products/snapdragon-seeds-giant-tetra-mix",
"available": true
},
{
"featured_image": "files/1777478420_rhubarb_victoria_comp_4d02271c-be63-46c1-a074-5542f20d22d4.jpg",
"secondary_image": "",
"price": 399,
"handle": "rhubarb-seeds-organic",
"title": "Rhubarb Seeds (Organic)",
"url": "/products/rhubarb-seeds-organic",
"available": true
},
{
"featured_image": "files/1731439595_petunia_mix_box_comp_6c912802-34ca-40f1-afe1-60571eb9b689.jpg",
"secondary_image": "files/1731091595_starter_kit_flower_comp_f754c09c-2ba9-41d3-9dd9-8518e44a1791.jpg",
"price": 2314,
"handle": "seed-starter-kit-petunia",
"title": "Seed Starter Kit - Petunia",
"url": "/products/seed-starter-kit-petunia",
"available": true
},
{
"featured_image": "files/1774552742_beet_rainbow_blend_comp_8e0542ef-4edf-4587-86c5-e067e21911ae.jpg",
"secondary_image": "",
"price": 956,
"handle": "beet-rainbow-blend-organic-microgreen-seeds",
"title": "Beet - Rainbow Blend (Organic) - Microgreen Seeds",
"url": "/products/beet-rainbow-blend-organic-microgreen-seeds",
"available": true
},
{
"featured_image": "files/1750441310_radish_red_rats_tail_wb_comp_21444a43-1fc5-48a1-93a8-313eff31bca6.jpg",
"secondary_image": "files/1750441310_radish_red_rats_tail_comp_b7491272-864e-4590-945e-c38d15793789.jpg",
"price": 279,
"handle": "radish-red-rats-tail-microgreen-seeds",
"title": "Radish - Red Rat's Tail - Microgreen Seeds",
"url": "/products/radish-red-rats-tail-microgreen-seeds",
"available": true
},
{
"featured_image": "files/1735323269_1719336664_bloom_master_kit_wm_comp_d57bdd98-0022-440c-9db1-68a72113d34f.jpg",
"secondary_image": "files/1719335329_petunia-bloommaster-kit-hanging-wm-comp_5fe03cd1-11f2-4650-8054-69de56f14893.jpg",
"price": 3395,
"handle": "bloom-master-hanging-basket-kit-petunia",
"title": "Bloom Master Hanging Basket Kit - Petunia",
"url": "/products/bloom-master-hanging-basket-kit-petunia",
"available": true
},
{
"featured_image": "files/1750862076_radish_pink_summercicle_org_comp_2e976d6f-4586-4c8e-a6c9-e32c56ac6db5.jpg",
"secondary_image": "",
"price": 339,
"handle": "radish-seeds-pink-summercicle-organic",
"title": "Radish Seeds - Pink Summercicle (Organic)",
"url": "/products/radish-seeds-pink-summercicle-organic",
"available": true
},
{
"featured_image": "files/1773691637_1773691547_belford_barley_comp_1b3d9f49-714b-4fec-b903-de6e7d4ad009.jpg",
"secondary_image": "",
"price": 314,
"handle": "barley-seeds-belford",
"title": "Barley Seeds - Belford",
"url": "/products/barley-seeds-belford",
"available": true
},
{
"featured_image": "products/lettuce-butterhead-optima-conventional-o-com-wm.jpg",
"secondary_image": "products/MVS-generic-packet-com_af9ffcc1-b692-4874-b379-eb156305ef1c.jpg",
"price": 299,
"handle": "lettuce-seeds-butterhead-optima",
"title": "Lettuce Seeds - Butterhead - Optima",
"url": "/products/lettuce-seeds-butterhead-optima",
"available": false
},
{
"featured_image": "files/1731520037_box_pansy_comp_384bf798-25f3-45ee-8d90-cb1020defcc7.jpg",
"secondary_image": "files/1731091595_starter_kit_flower_comp_65ea2f7b-212d-45a0-9fca-f78cde2ba375.jpg",
"price": 2826,
"handle": "seed-starter-kit-pansy",
"title": "Seed Starter Kit - Pansy",
"url": "/products/seed-starter-kit-pansy",
"available": true
},
{
"featured_image": "files/1750862076_radish_pink_summercicle_organic_microgreen_comp_18283a72-07a3-4704-904d-5001b0035f9e.jpg",
"secondary_image": "files/1750862076_radish_pink_summercicle_organic_wb_comp_b92d1d96-2447-4d31-835b-06ec2f342094.jpg",
"price": 1653,
"handle": "radish-pink-summercicle-organic-microgreens-seeds",
"title": "Radish - Pink Summercicle (Organic) - Microgreens Seeds",
"url": "/products/radish-pink-summercicle-organic-microgreens-seeds",
"available": true
},
{
"featured_image": "files/1735323269_1719336664_bloom_master_kit_wm_comp_c364011a-3ab4-4702-8f04-14ed1263c831.jpg",
"secondary_image": "files/1719336345_Pansy-bloommaster-kit-hanging-wm-comp_21e475ee-724d-458d-9e79-5e3146603a43.jpg",
"price": 3850,
"handle": "bloom-master-hanging-basket-kit-pansy",
"title": "Bloom Master Hanging Basket Kit - Pansy",
"url": "/products/bloom-master-hanging-basket-kit-pansy",
"available": true
},
{
"featured_image": "products/lettuce-leaf-deer-tongue-really-red-conventional-l-com-wm.jpg",
"secondary_image": "products/MVS-generic-packet-com_609427e5-6e48-42fc-9a8b-c458560e1d8d.jpg",
"price": 299,
"handle": "lettuce-seeds-leaf-deer-tongue-really-red",
"title": "Lettuce Seeds - Leaf - Deer Tongue - Really Red",
"url": "/products/lettuce-seeds-leaf-deer-tongue-really-red",
"available": true
}
]