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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788 Items
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Corn Seeds - Sweet - (su) Early Sunglow Hybridmid size pouch type seed packaging for - Corn Sweet su Early Sunglow Hybrid
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Starting at $4.29
Soybean - Yellow (Organic) - Sprouting Seedssmall size packet type seed packaging for - Soybean Yellow Organic Sprouting
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Squash Seeds - Summer - Zucchini, Endurance BC, F1small size packet type seed packaging for - Squash Summer Zucchini Endurance BC F1
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Corn Seeds - Sweet - Serendipity Bicolor TripleSweet Hybridmid size pouch type seed packaging for - Corn Sweet Serendipity Bicolor TripleSweet Hybrid
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Corn Seeds - Sweet - Serendipity Bicolor TripleSweet Hybrid
Starting at $5.79
Squash Seeds - Summer - Zucchini Goldenmid size pouch type seed packaging for - Squash Summer Zucchini Golden
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Squash Seeds - Summer - Zucchini Golden
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Squash Seeds - Summer - Golden Glory Hybridmid size pouch type seed packaging for - Squash Summer Golden Glory Hybrid
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Squash Seeds - Summer - Golden Glory Hybrid
Starting at $4.39
Swiss Chard Seeds - LucullusSwiss Chard Seeds - Lucullus
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Swiss Chard Seeds - Lucullus
Starting at $2.99
Carrot Seeds - Purplesmall size packet type seed packaging for - Carrot Purple
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Carrot Seeds - Purple
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Adzuki Bean - Organic - Sprouting SeedsAdzuki Bean - Organic - Sprouting Seeds
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Organic
Adzuki Bean - Organic - Sprouting Seeds
Starting at $3.49
Radish Seeds - Purple Plummid size pouch type seed packaging for - Radish Purple Plum
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Radish Seeds - Purple Plum
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Dill Seeds - Mammoth Long Islandmid size pouch type seed packaging for - Dill Mammoth Long Island
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Beet Seeds - Sugar Beetsmall size packet type seed packaging for - Beet Sugar Beet
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Squash Seeds - Summer - Cocozelle Zucchinismall size packet type seed packaging for - Squash Summer Cocozelle Zucchini
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Heirloom
Squash Seeds - Summer - Cocozelle Zucchini
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Beet Seeds - Chioggiasmall size packet type seed packaging for - Beet Chioggia
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Bean Seeds - Bush - Top Notch Golden Waxmid size pouch type seed packaging for - Bean Bush Top Notch Golden Wax
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Bean Seeds - Bush - Henderson Limamid size pouch type seed packaging for - Bean Bush Henderson Lima
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Zucchini Seeds - Cocozelle - Organicmid size pouch type seed packaging for - Zucchini Cocozelle Organic
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Organic
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Swiss Chard Seeds - Bright Lightsmid size pouch type seed packaging for - Swiss Chard Bright Lights
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AAS Winner
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Radish Seeds - French Breakfast - Organicsmall size packet type seed packaging for - Radish French Breakfast Organic
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Organic
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Melon Seeds - Cantaloupe - Imperial 45mid size pouch type seed packaging for - Melon Cantaloupe Imperial 45
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Melon Seeds - Cantaloupe - Imperial 45
Starting at $3.09
Squash Seeds - Winter - Sweet MeatSquash Seeds - Winter - Sweet Meat
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Starting at $2.99
Nasturtium Seeds - Alaskamid size pouch type seed packaging for - Nasturtium Alaska
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Nasturtium Seeds - Alaska
Starting at $2.99
Radish Seeds - WatermelonRadish Seeds - Watermelon
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Radish Seeds - Watermelon
Starting at $3.99
Bean Seeds - Bush - Strikesmall size packet type seed packaging for - Bean Bush Strike
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Leek Seeds - American Flag Leek - Organicmid size pouch type seed packaging for - Leek American Flag Leek Organic
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Organic
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Starting at $3.89
Bean Seeds - Bush - Providersmall size packet type seed packaging for - Bean Bush Provider
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Bean - Broad Windsor Fava - Cover Crop Seedssmall size packet type seed packaging for - Bean Broad Windsor Fava Cover Crop
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Bean Seeds - Bush - Roma IIsmall size packet type seed packaging for - Bean Bush Roma II
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Bean Seeds - Bush - Roma II
Starting at $2.63
Okra Seeds - Clemson Spineless (Organic)
Starting at $3.59
Corn Seeds - Sweet - Silver Queen Hybrid
Starting at $3.81
Parsley Seeds - Italian Giant (Organic)
Starting at $3.59
Sunflower Seeds - Autumn Beauty Mix
Starting at $2.99
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