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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870 Items
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Radish Seeds - Miyashige Green Neckmid size pouch type seed packaging for - Radish Miyashige Green Neck
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Heirloom
Radish Seeds - Miyashige Green Neck
Starting at $3.99
Squash Seeds - Winter - Pilgrim F1small size packet type seed packaging for - Squash Winter Pilgrim F1
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Squash Seeds - Winter - Pilgrim F1
Starting at $3.99
Squash Seeds - Winter - Hubbard Whitesmall size packet type seed packaging for - Squash Winter Hubbard White
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Squash Seeds - Winter - Hubbard White
Starting at $3.59
Squash Seeds - Winter - American Tondosmall size packet type seed packaging for - Squash Winter American Tondo
-46%
Heirloom
Squash Seeds - Winter - American Tondo
Starting at $1.99
Swiss Chard Seeds - Oriole Orangemid size pouch type seed packaging for - Zinnia Magellan Series Orange
-33%
Swiss Chard Seeds - Oriole Orange
Starting at $1.99
Radish Seeds - April Cross - Hybridmid size pouch type seed packaging for - Radish April Cross Hybrid
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Radish Seeds - April Cross - Hybrid
Starting at $3.99
Melon Seeds - Branco Do Ribatejosmall size packet type seed packaging for - Melon Branco Do Ribatejo
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Melon Seeds - Branco Do Ribatejo
Starting at $2.99
Squash Seeds - Summer - Ronde de Nicesmall size packet type seed packaging for - Squash Summer Ronde de Nice
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Squash Seeds - Summer - Ronde de Nice
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Radish Seeds - Korean - Altari Dochon 89 - Hybridmid size pouch type seed packaging for - Radish Korean Altari Dochon 89 Hybrid
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Radish Seeds - Korean - Altari Dochon 89 - Hybrid
Starting at $3.99
Squash Seeds - Winter - Table Princess F1 PMTsmall size packet type seed packaging for - Squash Winter Table Princess F1 PMT
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Squash Seeds - Winter - Table Princess F1 PMT
Starting at $3.99
Melon Seeds - Cantaloupe - Scrumptious Hybridmid size pouch type seed packaging for - Melon Cantaloupe Scrumptious Hybrid
-60%
Melon Seeds - Cantaloupe - Scrumptious Hybrid
Starting at $1.99
Squash Seeds - Winter - Triamblesmall size packet type seed packaging for - Squash Winter Triamble
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Heirloom
Squash Seeds - Winter - Triamble
Starting at $3.59
Bean Seeds - Pole - Prizewinner Runner
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Bean Seeds - Pole - Prizewinner Runner
Starting at $3.99
Melon Seeds - Sakata's Sweet
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Melon Seeds - Sakata's Sweet
Starting at $3.99
Squash Seeds - Summer - Summer Melody Blendmid size pouch type seed packaging for - Squash Summer Summer Melody Blend
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Squash Seeds - Summer - Summer Melody Blend
Starting at $2.99
Radish Seeds - White Cannon - Hybridmid size pouch type seed packaging for - Radish White Cannon Hybrid
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Radish Seeds - White Cannon - Hybrid
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Squash Seeds - Summer - Zucca de Lungo Verdesmall size packet type seed packaging for - Squash Summer Zucca de Lungo Verde
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Squash Seeds - Summer - Zucca de Lungo Verde
Starting at $2.99
Melon Seeds - Crenshaw - Crenshaw (Organic)small size packet type seed packaging for - Melon Crenshaw Crenshaw Organic
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Organic
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Starting at $3.59
Squash Seeds - Winter - Gold Nugget - Organicsmall size packet type seed packaging for - Squash Winter Gold Nugget Organic
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AAS Winner
Heirloom
Organic
Squash Seeds - Winter - Gold Nugget - Organic
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Melon Seeds - Cantaloupe - Haogen (Organic)small size packet type seed packaging for - Melon Cantaloupe Haogen Organic
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Melon Seeds - Cantaloupe - Haogen (Organic)
Starting at $3.59
Corn Seeds - Sweet - Inspiration HybridCorn Seeds - Sweet - Inspiration Hybrid
-68%
Corn Seeds - Sweet - Inspiration Hybrid
Starting at $1.99
Bean Seeds - Bush - Kouri Edamame Soybeanmid size pouch type seed packaging for - Bean Bush Kouri Edamame Soybean
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Bean Seeds - Bush - Kouri Edamame Soybean
Starting at $3.99
Corn Seeds - Dent - Hickory King Yellow
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Corn Seeds - Dent - Hickory King Yellow
Starting at $3.24
Watermelon Seeds - Picnic - Greybellesmall size packet type seed packaging for - Watermelon Picnic Greybelle
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Watermelon Seeds - Picnic - Greybelle
Starting at $2.99
Watermelon Seeds - Mini - Triple Treat Hybrid
Starting at $8.49
Watermelon Seeds - Picnic - Triple Sweet Hybrid
Starting at $8.49
Watermelon Seeds - Mini - Treasure Chest Hybrid
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Melon Seeds - Casaba - Sungold
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Melon Seeds - Cantaoupe - Rocky Ford Green Flesh (Organic)
Starting at $3.59
Sunflower Seeds - Goldie
Starting at $4.29
Swiss Chard Seeds - Yellow - Organic
Starting at $3.59
Sunflower Seeds - Early Black Heart
Starting at $3.99
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