June is the heart of the planting season in cold-winter zones, but it carries a double assignment. The main job is getting every warm-season crop established outdoors. The secondary job — easy to miss — is starting the first wave of fall crops indoors. Leeks, pansies, and violas all have long enough lead times that, if you want them before the October frost, you should sow the seeds now.

Indoors (fresh harvests):

  • Microgreens: peas, broccoli, sunflowers, arugula
  • Sprouts: alfalfa, broccoli, radish, mung
  • Herbs & greens under lights: chives, parsley, mint

Start indoors now for fall: leek, pansy, viola

Transplants to move outdoors (harden first): tomato, pepper, eggplant, basil, sweet potato slips — get anything still waiting indoors out now.

Crops that can be directly sown outdoors in June: beans, corn, cucumber, squash, melons, okra, sunflower, basil, dill, beets, carrots, chard, and nasturtium. Succession-sow radishes and salad greens early in the month while temperatures are still moderate.

Cover crops: buckwheat, cowpeas, red clover — good for any gaps or unplanted beds

Tip: This zone group covers a lot of territory. Nothing replaces talking with experienced gardeners in your area and, of course, 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
Legend: H for Heirloom, O for Organic, A for AAS Winner, F for staff favorites
632 Items
{ "manual": "Featured", "most-relevant": "Most relevant", "best-selling": "Best selling", "title-ascending": "Alphabetically, A-Z", "title-descending": "Alphabetically, Z-A", "price-ascending": "Price, low to high", "price-descending": "Price, high to low", "created-ascending": "Date, old to new", "created-descending": "Date, new to old" }
Squash Seeds - Winter - Japanese Red Kuri (Uchiki Kuri)Squash Seeds - Winter - Japanese Red Kuri (Uchiki Kuri)
-0
Heirloom
Squash Seeds - Winter - Japanese Red Kuri (Uchiki Kuri)
Starting at $3.99
Watermelon Seeds - Picnic - Moon & Stars (Organic)mid size pouch type seed packaging for - Watermelon Picnic Moon & Stars Organic
-0
Heirloom
Organic
Watermelon Seeds - Picnic - Moon & Stars (Organic)
Starting at $3.59
Watermelon Seeds - Icebox - Bush Sugar Babysmall size packet type seed packaging for - Watermelon Icebox Bush Sugar Baby
-0
Heirloom
Watermelon Seeds - Icebox - Bush Sugar Baby
Starting at $2.99
Sunflower Seeds - Italian WhiteSunflower Seeds - Italian White
-0
Sunflower Seeds - Italian White
Starting at $2.99
Corn Seeds - Sweet - Bodacious R/M Hybridmid size pouch type seed packaging for - Corn Sweet Bodacious R/M Hybrid
-0
Corn Seeds - Sweet - Bodacious R/M Hybrid
Starting at $3.99
Radish Seeds - Lady Slippermid size pouch type seed packaging for - Radish Lady Slipper
-0
Heirloom
Radish Seeds - Lady Slipper
Starting at $2.99
Corn Seeds - Sweet - Sugar Buns Hybridmid size pouch type seed packaging for - Corn Sweet Sugar Buns Hybrid
-0
Corn Seeds - Sweet - Sugar Buns Hybrid
Starting at $4.09
Carrot Seeds - Kuroda Long 8"
-0
Heirloom
Carrot Seeds - Kuroda Long 8"
Starting at $3.99
Squash - Summer - Dark Green Zucchini (Organic)
-0
Heirloom
Organic
Squash - Summer - Dark Green Zucchini (Organic)
Starting at $3.39
Radish Seeds - Korean - Cheong Du - Hybridmid size pouch type seed packaging for - Radish Korean Cheong Du Hybrid
-30%
Radish Seeds - Korean - Cheong Du - Hybrid
Starting at $2.79
Radish Seeds - Easter Egg BlendRadish Seeds - Easter Egg Blend
-0
Heirloom
Radish Seeds - Easter Egg Blend
Starting at $2.99
Squash Seeds - Summer - Sunburst Hybridmid size pouch type seed packaging for - Squash Summer Sunburst Hybrid
-0
AAS Winner
Squash Seeds - Summer - Sunburst Hybrid
Starting at $4.79
Corn Seeds - Popcorn - Glass Gemmid size pouch type seed packaging for - Corn Popcorn Glass Gem
-0
Corn Seeds - Popcorn - Glass Gem
Starting at $4.29
Squash Winter Sweet DumplingSquash Winter Sweet Dumpling
-0
Heirloom
Squash Seeds - Winter - Sweet Dumpling
Starting at $3.39
Squash Seeds - Summer - Fordhook Zucchinismall size packet type seed packaging for - Squash Summer Fordhook Zucchini
-28%
AAS Winner
Heirloom
Squash Seeds - Summer - Fordhook Zucchini
Starting at $1.99
Corn Seeds - Sweet - Country Gentlemansmall size packet type seed packaging for - Corn Sweet Country Gentleman
-0
Heirloom
Corn Seeds - Sweet - Country Gentleman
Starting at $3.07
Squash Seeds - Summer - Zucchini Elite Hybridmid size pouch type seed packaging for - Squash Summer Zucchini Elite Hybrid
-0
Squash Seeds - Summer - Zucchini Elite Hybrid
Starting at $4.79
Watermelon Seeds - Mini - Golden Midgetsmall size packet type seed packaging for - Watermelon Mini Golden Midget
-0
Heirloom
Watermelon Seeds - Mini - Golden Midget
Starting at $3.59
Corn Seeds - Dent - Hickory King Whitesmall size packet type seed packaging for - Corn Dent Hickory King White
-0
Heirloom
Corn Seeds - Dent - Hickory King White
Starting at $2.63
Carrot Seeds - Red Cored Chantenay - Organicsmall size packet type seed packaging for - Carrot Red Cored Chantenay Organic
-0
Heirloom
Organic
Carrot Seeds - Red Cored Chantenay - Organic
Starting at $3.59
Bean Seeds - Bush - Gold Rush Waxsmall size packet type seed packaging for - Bean Bush Gold Rush Wax
-0
Heirloom
Bean Seeds - Bush - Gold Rush Wax
Starting at $2.99
Melon Seeds - Charentaissmall size packet type seed packaging for - Melon Charentais
-0
Heirloom
Melon Seeds - Charentais
Starting at $5.09
Radish Seeds - SparklerRadish Seeds - Sparkler
-0
Heirloom
Radish Seeds - Sparkler
Starting at $2.99
Corn Seeds - Sweet - Jubilee Hybridmid size pouch type seed packaging for - Corn Sweet Jubilee Hybrid
-0
Corn Seeds - Sweet - Jubilee Hybrid
Starting at $3.99
Carrot Seeds - Kyoto Redmid size pouch type seed packaging for - Carrot Kyoto Red
-0
Heirloom
Carrot Seeds - Kyoto Red
Starting at $3.99
Charleston Grey Watermelon Charleston Grey Watermelon
-0
Heirloom
Watermelon Seeds - Picnic - Charleston Grey
Starting at $2.79
Carrot Seeds - Royal Chantenaysmall size packet type seed packaging for - Carrot Royal Chantenay
-0
Heirloom
Carrot Seeds - Royal Chantenay
Starting at $2.99
Bean Seeds - Bush - Provider (Organic)
Starting at $3.59
Bean Seeds - Pole - Akasanjaku Yard Long
Starting at $3.99
Watermelon Seeds - Picnic - Sangria Hybrid
Starting at $5.89
Melon Seeds - Charentais (Organic)
Starting at $3.89
Carrot Seeds - Bambino (Organic)
Starting at $3.59
[ { "featured_image": "files/japanese_red_kuri_squash_wm.jpg", "secondary_image": "files/KZ_1_lb.jpg", "price": 399, "handle": "japanese-red-kuri-squash", "title": "Squash Seeds - Winter - Japanese Red Kuri (Uchiki Kuri)", "url": "/products/japanese-red-kuri-squash", "available": true }, { "featured_image": "files/watermelon-moon-and-stars-organic-seeds-comp.jpg", "secondary_image": "products/non-gmo-seed-bag-sus-wm-comp_4d8fad9a-6240-4c0f-a32a-ce3023a541ff.jpg", "price": 359, "handle": "watermelon-moon-and-stars-organic-seeds", "title": "Watermelon Seeds - Picnic - Moon & Stars (Organic)", "url": "/products/watermelon-moon-and-stars-organic-seeds", "available": true }, { "featured_image": "files/organic-provider-bush-bean-seeds-comp.jpg", "secondary_image": "products/SSC-organic-generic-packet-com_2b1eb8d4-1aea-4dd4-a739-b4cd56e483fa.jpg", "price": 359, "handle": "organic-provider-bush-bean-seeds", "title": "Bean Seeds - Bush - Provider (Organic)", "url": "/products/organic-provider-bush-bean-seeds", "available": false }, { "featured_image": "files/bush-sugar-baby-watermelon-Comp.jpg", "secondary_image": "products/Seed_Packet_04ea808d-3269-4318-81f3-1502a9f9904e.jpg", "price": 299, "handle": "bush-sugar-baby-watermelon", "title": "Watermelon Seeds - Icebox - Bush Sugar Baby", "url": "/products/bush-sugar-baby-watermelon", "available": true }, { "featured_image": "files/sunflower-italian-white-flower-seed-comp.jpg", "secondary_image": "products/Seed_Pouch_1_1_1_1_936a3d91-a0df-410c-bc5c-4ec54d1f2229.jpg", "price": 299, "handle": "sunflower-italian-white-flower-seed", "title": "Sunflower Seeds - Italian White", "url": "/products/sunflower-italian-white-flower-seed", "available": true }, { "featured_image": "files/yard-long-bean-akasanjaku-comp.jpg", "secondary_image": "products/non-gmo-seed-bag-premium_3698bf43-f74c-4f4b-bf8c-745f997c8e91.png", "price": 399, "handle": "yard-long-bean-akasanjaku", "title": "Bean Seeds - Pole - Akasanjaku Yard Long", "url": "/products/yard-long-bean-akasanjaku", "available": false }, { "featured_image": "files/Corn-Seeds-Sweet-Bodacious-Hybrid-RM-Comp.jpg", "secondary_image": "products/non-gmo-seed-bag-sm_b61e5695-971c-453c-8bbd-3c3ac4479bf5.png", "price": 399, "handle": "corn-se-bodacious-r-m-hybrid-vegetable-seed", "title": "Corn Seeds - Sweet - Bodacious R/M Hybrid", "url": "/products/corn-se-bodacious-r-m-hybrid-vegetable-seed", "available": true }, { "featured_image": "files/radish-lady-slipper-seeds-Comp.jpg", "secondary_image": "products/non-gmo-sprouting-seed_1086a36c-5eec-4b99-9ef0-c9d2d7a66b58.jpg", "price": 299, "handle": "radish-lady-slipper-seeds", "title": "Radish Seeds - Lady Slipper", "url": "/products/radish-lady-slipper-seeds", "available": true }, { "featured_image": "files/corn-se-sugar-buns-hybrid-comp.jpg", "secondary_image": "products/non-gmo-seed-bag-sm_a3e54bde-9689-4e08-aee8-a2387e4ce6c0.png", "price": 409, "handle": "corn-se-sugar-buns-hybrid", "title": "Corn Seeds - Sweet - Sugar Buns Hybrid", "url": "/products/corn-se-sugar-buns-hybrid", "available": true }, { "featured_image": "files/carrot-seeds-kuroda-long-8-Comp.jpg", "secondary_image": "", "price": 399, "handle": "carrot-seeds-kuroda-long-8", "title": "Carrot Seeds - Kuroda Long 8"", "url": "/products/carrot-seeds-kuroda-long-8", "available": true }, { "featured_image": "files/organic-dark-green-zucchini-squash-Comp.jpg", "secondary_image": "", "price": 339, "handle": "organic-dark-green-zucchini-squash", "title": "Squash - Summer - Dark Green Zucchini (Organic)", "url": "/products/organic-dark-green-zucchini-squash", "available": true }, { "featured_image": "files/radish-seeds-korean-cheong-du-hybrid-Comp.jpg", "secondary_image": "products/non-gmo-seed-bag-premium_2a052dd9-73c5-4bb8-bc2e-aec11b67f7a5.png", "price": 279, "handle": "radish-seeds-korean-cheong-du-hybrid", "title": "Radish Seeds - Korean - Cheong Du - Hybrid", "url": "/products/radish-seeds-korean-cheong-du-hybrid", "available": true }, { "featured_image": "files/radish-easter-egg-blend-seeds-comp.jpg", "secondary_image": "products/Seed_Pouch_1_aa1e9330-b9db-4c3e-a714-bc07ddfc2d14.jpg", "price": 299, "handle": "radish-easter-egg-blend-seeds", "title": "Radish Seeds - Easter Egg Blend", "url": "/products/radish-easter-egg-blend-seeds", "available": true }, { "featured_image": "files/squash-summer-sunburst-hybrid-seeds-Comp.jpg", "secondary_image": "products/SeedPouch_f4fed514-d0b3-4706-8b48-1e808f93761e.jpg", "price": 479, "handle": "squash-summer-sunburst-hybrid-seeds", "title": "Squash Seeds - Summer - Sunburst Hybrid", "url": "/products/squash-summer-sunburst-hybrid-seeds", "available": true }, { "featured_image": "files/Corn-Seeds-Popcorn-Glass-Gem-comp.jpg", "secondary_image": "products/non-gmo-seed-bag-sm_9b954abc-d5c5-4936-a0db-4d6da97231a0.png", "price": 429, "handle": "corn-popcorn-glass-gem-seeds", "title": "Corn Seeds - Popcorn - Glass Gem", "url": "/products/corn-popcorn-glass-gem-seeds", "available": true }, { "featured_image": "files/Squash_Winter_Sweet_Dumpling_Group_Comp.jpg", "secondary_image": "files/Squash_Winter_Sweet_Dumpling_Comp.jpg", "price": 339, "handle": "squash-winter-sweet-dumpling-seeds", "title": "Squash Seeds - Winter - Sweet Dumpling", "url": "/products/squash-winter-sweet-dumpling-seeds", "available": true }, { "featured_image": "products/sqaush-summer-fordhook-zuchinni-conventional-l-com-wm.jpg", "secondary_image": "products/MVS-generic-packet-com_a3690b8e-108a-4e8d-b521-7a708e315f89.jpg", "price": 199, "handle": "squash-seeds-summer-fordhook-zucchini", "title": "Squash Seeds - Summer - Fordhook Zucchini", "url": "/products/squash-seeds-summer-fordhook-zucchini", "available": true }, { "featured_image": "files/country-gentleman-corn-seed-comp.jpg", "secondary_image": "products/SSC-generic-packet_1_a02021b6-f834-4605-ba3f-cc88aaba6b30_1_2.jpg", "price": 307, "handle": "country-gentleman-corn-seed", "title": "Corn Seeds - Sweet - Country Gentleman", "url": "/products/country-gentleman-corn-seed", "available": true }, { "featured_image": "files/zucchini-elite-hybrid-plant-seed-wm_700_1222x1222_0795b76d-0ca9-4e8c-a859-2c92884f2355.jpg", "secondary_image": "products/SeedPouch_78667d94-8ff9-4096-ae0a-ee67206388b8.jpg", "price": 479, "handle": "squash-summer-zucchini-elite-hybrid-seeds", "title": "Squash Seeds - Summer - Zucchini Elite Hybrid", "url": "/products/squash-summer-zucchini-elite-hybrid-seeds", "available": true }, { "featured_image": "files/watermelon-golden-midget-com-wm_1222x1222_32520d05-63c8-4ae1-a13e-fec6667042a4.jpg", "secondary_image": "products/Seed_Packet_84b28605-f2ef-4a05-9077-1498b1a1781b.jpg", "price": 359, "handle": "golden-midget-watermelon-seeds", "title": "Watermelon Seeds - Mini - Golden Midget", "url": "/products/golden-midget-watermelon-seeds", "available": true }, { "featured_image": "files/Watermelon-Seeds-Picnic-Sangria-Hybrid-comp.jpg", "secondary_image": "products/Seed_Pouch_1_1_1_90413272-c6dc-4ff1-a31c-74a698a2af16.jpg", "price": 589, "handle": "watermelon-sangria-hybrid-seeds", "title": "Watermelon Seeds - Picnic - Sangria Hybrid", "url": "/products/watermelon-sangria-hybrid-seeds", "available": false }, { "featured_image": "files/Corn-Seeds-Dent-Hickory-King-White-comp.jpg", "secondary_image": "products/Seed_Packet_33bd2e66-4c19-40be-b38b-e78e93b7a139_1.jpg", "price": 263, "handle": "hickory-king-white-corn-seeds", "title": "Corn Seeds - Dent - Hickory King White", "url": "/products/hickory-king-white-corn-seeds", "available": true }, { "featured_image": "files/organic-red-cored-chantenay-carrot-seed-comp.jpg", "secondary_image": "products/SSC-organic-generic-packet-com_7cd28e46-152a-4b16-81d0-cb8fbef22707.jpg", "price": 359, "handle": "organic-red-cored-chantenay-carrot-seed", "title": "Carrot Seeds - Red Cored Chantenay - Organic", "url": "/products/organic-red-cored-chantenay-carrot-seed", "available": true }, { "featured_image": "files/bean-gold-rush-wax-seed-Comp.jpg", "secondary_image": "products/MVS-generic-packet_3d2eb28b-cdbc-447a-bd94-72a10755e5b7.jpg", "price": 299, "handle": "bean-gold-rush-wax-seed", "title": "Bean Seeds - Bush - Gold Rush Wax", "url": "/products/bean-gold-rush-wax-seed", "available": true }, { "featured_image": "files/charentais-melon-seed-Comp.jpg", "secondary_image": "products/Seed_Packet_ce69fa5d-e5d8-4548-b799-1c5d98fa36b0.jpg", "price": 509, "handle": "charentais-melon-seed", "title": "Melon Seeds - Charentais", "url": "/products/charentais-melon-seed", "available": true }, { "featured_image": "files/radish-seeds-sparkler-Comp.jpg", "secondary_image": "products/radish-seeds-sparkler-wm-700.jpg", "price": 299, "handle": "radish-seeds-sparkler", "title": "Radish Seeds - Sparkler", "url": "/products/radish-seeds-sparkler", "available": true }, { "featured_image": "files/corn-su-jubilee-hybrid-comp.jpg", "secondary_image": "products/non-gmo-seed-bag-sm_9a501f9a-9c8f-4b61-b10e-34346ab98df3.png", "price": 399, "handle": "corn-su-jubilee-hybrid", "title": "Corn Seeds - Sweet - Jubilee Hybrid", "url": "/products/corn-su-jubilee-hybrid", "available": true }, { "featured_image": "files/organic-charentais-melon-seed-Comp.jpg", "secondary_image": "products/SSC-organic-generic-packet-com_d1153239-7e05-407e-95d8-e8921ae77a7a.jpg", "price": 389, "handle": "organic-charentais-melon-seed", "title": "Melon Seeds - Charentais (Organic)", "url": "/products/organic-charentais-melon-seed", "available": false }, { "featured_image": "files/carrot-seeds-kyoto-red-comp.jpg", "secondary_image": "products/non-gmo-seed-bag-premium_31eb085d-8e36-4108-b9c4-d268f974bafa.png", "price": 399, "handle": "carrot-seeds-kyoto-red", "title": "Carrot Seeds - Kyoto Red", "url": "/products/carrot-seeds-kyoto-red", "available": true }, { "featured_image": "files/carrot-seeds-bambino-organic-Comp_d0954742-efeb-4062-b328-e514030d69e2.jpg", "secondary_image": "", "price": 359, "handle": "carrot-seeds-bambino-organic", "title": "Carrot Seeds - Bambino (Organic)", "url": "/products/carrot-seeds-bambino-organic", "available": false }, { "featured_image": "files/Charleston_Grey_Watermelon_Comp.jpg", "secondary_image": "files/Charleston_Grey_Watermelon_Seeds_Comp.jpg", "price": 279, "handle": "charleston-grey-watermelon-seeds", "title": "Watermelon Seeds - Picnic - Charleston Grey", "url": "/products/charleston-grey-watermelon-seeds", "available": true }, { "featured_image": "products/carrot-royal-chantenay-seed-wm_700.jpg", "secondary_image": "products/MVS-generic-packet_269f28b2-243c-494f-be6e-34346fe8c2ea.jpg", "price": 299, "handle": "carrot-royal-chantenay", "title": "Carrot Seeds - Royal Chantenay", "url": "/products/carrot-royal-chantenay", "available": true } ]