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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79 Items
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Leek Seeds - Large American FlagLeek Seeds - Large American Flag
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Starting at $2.99
Radish Seeds - Daikon Minowase
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White Dutch Clover - Cover Crop Seedsmid size pouch type seed packaging for - White Dutch Clover Cover Crop
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Swiss Chard Seeds - LucullusSwiss Chard Seeds - Lucullus
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Starting at $2.99
Beet Seeds - Sugar Beetsmall size packet type seed packaging for - Beet Sugar Beet
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Beet Seeds - Chioggiasmall size packet type seed packaging for - Beet Chioggia
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Radish Seeds - WatermelonRadish Seeds - Watermelon
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Starting at $3.99
Leek Seeds - American Flag Leek - Organicmid size pouch type seed packaging for - Leek American Flag Leek Organic
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Radish Seeds - White Iciclemid size pouch type seed packaging for - Radish White Icicle
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Beet Seeds - Chioggia (Organic)small size packet type seed packaging for - Beet Chioggia Organic
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Swiss Chard Seeds - Fordhook Giantmid size pouch type seed packaging for - Swiss Chard Fordhook Giant
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Pansy Seeds - Delta Premium SeriesPansy Seeds - Delta Premium Series
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Bean Seeds - Bush - California Black-Eye Cowpeassmall size packet type seed packaging for - Bean Bush California Black-Eye Cowpeas
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Bean Seeds - Bush - California Black-Eye Cowpeas
Starting at $3.66
Sunflower Seeds - Italian WhiteSunflower Seeds - Italian White
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Starting at $2.99
Radish Seeds - Korean - Cheong Du - Hybridmid size pouch type seed packaging for - Radish Korean Cheong Du Hybrid
-30%
Radish Seeds - Korean - Cheong Du - Hybrid
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Radish Seeds - SparklerRadish Seeds - Sparkler
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Pansy Seeds - Cool Wave SeriesPansy Seeds - Cool Wave Series
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Bean Seeds - Bush - Cannellini (Organic)small size packet type seed packaging for - Bean Bush Cannellini Organic
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Organic
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Leek Seeds - CarentanLeek Seeds - Carentan
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Starting at $2.99
White Berseem Clover (Coated) - Cover Crop Seedssmall size packet type seed packaging for - White Berseem Clover Coated Cover Crop
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Bean Seeds - Bush - Taylor Dwarf HorticultureBean Seeds - Bush - Taylor Dwarf Horticulture
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Beet Seed - White Detroitsmall size packet type seed packaging for - Beet White Detroit
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Radish Seeds - Chinese - Starburst - Hybridmid size pouch type seed packaging for - Radish Chinese Starburst Hybrid
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Leek Seeds - Giant MusselburghLeek Seeds - Giant Musselburgh
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Radish Seeds - Shirahime Hatsuka Daikonmid size pouch type seed packaging for - Radish Shirahime Hatsuka Daikon
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Carrot Seeds - Lunar Whitemid size pouch type seed packaging for - Carrot Lunar White
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Radish, Daikon (Organic) - Vegetable SeedsRadish, Daikon (Organic) - Vegetable Seeds
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Beet Seeds - White Albinosmall size packet type seed packaging for - Beet White Albino
-28%
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Radish Seeds - Korean - Alpine Gold - Hybridmid size pouch type seed packaging for - Radish Korean Alpine Gold Hybrid
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White Ladino CloverWhite Ladino Clover
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Starting at $3.29
Cucamelon Seeds - Mexican Sour Gherkin
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Radish Seeds - China Rose - Organic
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