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
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446 Items
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Watermelon Seeds - Picnic - Dixie Queenmid size pouch type seed packaging for - Watermelon Picnic Dixie Queen
-0
Heirloom
Watermelon Seeds - Picnic - Dixie Queen
Starting at $2.99
Corn Seeds - Sweet - Ambrosia Hybrid (treated)mid size pouch type seed packaging for - Corn Sweet Ambrosia Hybrid treated
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Corn Seeds - Sweet - Ambrosia Hybrid (treated)
Starting at $14.32
Bean Seeds - Bush -  Fordhook 242 Lima
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Bean Seeds - Bush - Fordhook 242 Lima
Starting at $3.07
Melon Seeds - Korean - Dae Jang Geum Hybridmid size pouch type seed packaging for - Melon Korean Dae Jang Geum Hybrid
-0
Melon Seeds - Korean - Dae Jang Geum Hybrid
Starting at $3.99
Melon Seeds - Honeydew - Orange Fleshmid size pouch type seed packaging for - Melon Honeydew Orange Flesh
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Melon Seeds - Honeydew - Orange Flesh
Starting at $2.99
Zucchini Seeds - Roundsmall size packet type seed packaging for - Zucchini Round
-0
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Zucchini Seeds - Round
Starting at $2.99
Bean Seeds - Pole - White Seeded Yard Longmid size pouch type seed packaging for - Bean Pole Whiteed Yard Long
-0
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Bean Seeds - Pole - White Seeded Yard Long
Starting at $3.99
Squash Seeds - Japanese, Winter - Hokkori - Hybridmid size pouch type seed packaging for - Squash Japanese Winter Hokkori Hybrid
-0
Squash Seeds - Japanese, Winter - Hokkori - Hybrid
Starting at $3.99
Squash Seeds - Summer - Garden Spineless Zucchini Hybridsmall size packet type seed packaging for - Squash Summer Garden Spineless Zucchini Hybrid
-51%
Squash Seeds - Summer - Garden Spineless Zucchini Hybrid
Starting at $1.99
Corn Seeds - Sweet - Incredible R/M Hybridmid size pouch type seed packaging for - Corn Sweet Incredible R/M Hybrid
-0
Corn Seeds - Sweet - Incredible R/M Hybrid
Starting at $3.99
Corn Seeds - Sweet - Serendipity Bicolor TripleSweet Hybrid (treated)mid size pouch type seed packaging for - Corn Sweet Serendipity Bicolor TripleSweet Hybrid treated
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Corn Seeds - Sweet - Serendipity Bicolor TripleSweet Hybrid (treated)
Starting at $18.43
Watermelon Seeds - Giant - Congosmall size packet type seed packaging for - Watermelon Giant Congo
-0
Heirloom
Watermelon Seeds - Giant - Congo
Starting at $2.99
Squash Seeds - Winter - Honeybaby Hybridmid size pouch type seed packaging for - Squash Winter Honeybaby Hybrid
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Squash Seeds - Winter - Honeybaby Hybrid
Starting at $4.39
Squash Seeds - Summer - Zucchini Greyzinni Hybridmid size pouch type seed packaging for - Squash Summer Zucchini Greyzinni Hybrid
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Squash Seeds - Summer - Zucchini Greyzinni Hybrid
Starting at $3.99
Melon Seeds - Japanese - Ichiba Kouji Hybrid
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Melon Seeds - Japanese - Ichiba Kouji Hybrid
Starting at $3.99
Squash Seeds - Winter - Delicata Bush AASsmall size packet type seed packaging for - Squash Winter Delicata Bush AAS
-46%
Heirloom
Squash Seeds - Winter - Delicata Bush AAS
Starting at $1.99
Squash Seeds - Summer - Zucchini Italian Stripedmid size pouch type seed packaging for - Squash Summer Zucchini Italian Striped
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Squash Seeds - Summer - Zucchini Italian Striped
Starting at $2.99
Melon Seeds - Cantaloupe - Athena Hybridmid size pouch type seed packaging for - Melon Cantaloupe Athena Hybrid
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Melon Seeds - Cantaloupe - Athena Hybrid
Starting at $4.19
Corn Seeds - Dent - Pencil Cobsmall size packet type seed packaging for - Corn Dent Pencil Cob
-0
Heirloom
Corn Seeds - Dent - Pencil Cob
Starting at $3.07
Sorghum Seeds - Multicolored Broomcornmid size pouch type seed packaging for - Sorghum Multicolored Broomcorn
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Staff Favorite
Sorghum Seeds - Multicolored Broomcorn
Starting at $2.99
Squash Winter Cushaw Green Stripedmid size pouch type seed packaging for - Squash Winter Cushaw Green Striped
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Heirloom
Squash Seeds - Winter - Cushaw Green Striped
Starting at $2.99
Melon Seeds - Piel de SapoMelon Seeds - Piel de Sapo
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Heirloom
Melon Seeds - Piel de Sapo
Starting at $2.99
Watermelon Seeds - Picnic - Kleckley's Sweetsmall size packet type seed packaging for - Watermelon Picnic Kleckleys Sweet
-0
Heirloom
Watermelon Seeds - Picnic - Kleckley's Sweet
Starting at $2.99
Watermelon Seeds - Icebox - Yellow Petitesmall size packet type seed packaging for - Watermelon Icebox Yellow Petite
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Heirloom
Watermelon Seeds - Icebox - Yellow Petite
Starting at $3.79
Squash Seeds - Winter - Queensland Bluesmall size packet type seed packaging for - Squash Winter Queensland Blue
-0
Heirloom
Squash Seeds - Winter - Queensland Blue
Starting at $3.79
Squash Seeds - Lakotasmall size packet type seed packaging for - Squash Lakota
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Heirloom
Squash Seeds - Lakota
Starting at $3.09
Squash Seeds - Summer - Fordhook Zucchini (Organic)small size packet type seed packaging for - Squash Summer Fordhook Zucchini Organic
-0
AAS Winner
Heirloom
Organic
Squash Seeds - Summer - Fordhook Zucchini (Organic)
Starting at $3.59
Watermelon Seeds - Icebox - Yellow Gem Sweetmid size pouch type seed packaging for - Watermelon Icebox Yellow Gem Sweet
-0
Watermelon Seeds - Icebox - Yellow Gem Sweet
Starting at $3.09
Bean Seeds - Bush - Blue Lake 274 (Treated)
$10.82
Squash Seeds - Table Queen Bush Acorn - Organic
Starting at $3.59
Bean Seeds - Bush - Golden Wax (Organic)
Starting at $3.20
Bean Seeds - Pole - Purple Mart Tsu In Yard...
Starting at $3.99
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