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
110 Items
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Radish Seeds - Giant Luo Buomid size pouch type seed packaging for - Radish Giant Luo Buo
-0
Heirloom
Radish Seeds - Giant Luo Buo
Starting at $3.99
Watermelon Seeds - Picnic - Triple Sweet Hybridsmall size packet type seed packaging for - Watermelon Picnic Triple Sweet Hybrid
-0
Watermelon Seeds - Picnic - Triple Sweet Hybrid
Starting at $8.49
Melon Seeds - Cantaloupe - Haogen (Organic)small size packet type seed packaging for - Melon Cantaloupe Haogen Organic
-0
Heirloom
Organic
Melon Seeds - Cantaloupe - Haogen (Organic)
Starting at $3.59
Watermelon Seeds - Picnic - Greybellesmall size packet type seed packaging for - Watermelon Picnic Greybelle
-0
Heirloom
Watermelon Seeds - Picnic - Greybelle
Starting at $2.99
Melon Seeds - Sakata's Sweet
-0
Heirloom
Melon Seeds - Sakata's Sweet
Starting at $3.99
Melon Seeds - Cantaloupe - Iroquois (Organic)small size packet type seed packaging for - Melon Cantaloupe Iroquois Organic
-0
Heirloom
Organic
Melon Seeds - Cantaloupe - Iroquois (Organic)
Starting at $3.59
Watermelon Seeds - Picnic - Garrisoniansmall size packet type seed packaging for - Watermelon Picnic Garrisonian
-0
Heirloom
Watermelon Seeds - Picnic - Garrisonian
Starting at $3.29
Watermelon Seeds - Picnic - Striped Klondike R7small size packet type seed packaging for - Watermelon Picnic Striped Klondike R7
-0
Heirloom
Watermelon Seeds - Picnic - Striped Klondike R7
Starting at $2.99
Melon Seeds - Vine Peachsmall size packet type seed packaging for - Melon Vine Peach
-0
Heirloom
Melon Seeds - Vine Peach
Starting at $3.29
Parsley Seeds - Garden Blendsmall size packet type seed packaging for - Parsley Garden Blend
-0
Heirloom
Parsley Seeds - Garden Blend
Starting at $2.99
Sunflower Seeds - Pradera Gold (Organic)
-0
Organic
Sunflower Seeds - Pradera Gold (Organic)
Starting at $5.39
Melon Seeds - Schoon's Hardshell (Organic)small size packet type seed packaging for - Melon Schoons Hardshell Organic
-0
Heirloom
Organic
Melon Seeds - Schoon's Hardshell (Organic)
Starting at $3.59
Melon Seeds - Cantaloupe - Jenny Lindsmall size packet type seed packaging for - Melon Cantaloupe Jenny Lind
-0
Heirloom
Melon Seeds - Cantaloupe - Jenny Lind
Starting at $3.29
Corn Seeds - Sweet - Inspiration Hybridmid size pouch type seed packaging for - Zinnia Magellan Series Orange
-68%
Corn Seeds - Sweet - Inspiration Hybrid
Starting at $1.99
Melon Seeds - Cantaloupe - Imperial PMR 45 (Organic)small size packet type seed packaging for - Melon Cantaloupe Imperial PMR 45 Organic
-0
Heirloom
Organic
Melon Seeds - Cantaloupe - Imperial PMR 45 (Organic)
Starting at $3.59
Watermelon Seeds - Mini - Sweet Beauty HybridWatermelon Seeds - Mini - Sweet Beauty Hybrid
-0
AAS Winner
Watermelon Seeds - Mini - Sweet Beauty Hybrid
Starting at $7.69
Melon Seeds - Eindorsmall size packet type seed packaging for - Melon Eindor
-0
Melon Seeds - Eindor
Starting at $2.99
Radish Seeds - Sakurajima Mammothmid size pouch type seed packaging for - Radish Sakurajima Mammoth
-0
Heirloom
Radish Seeds - Sakurajima Mammoth
Starting at $3.99
Watermelon Seeds - Picnic - Kleckley's Sweet (Organic)mid size pouch type seed packaging for - Watermelon Picnic Kleckleys Sweet Organic
-0
Heirloom
Organic
Watermelon Seeds - Picnic - Kleckley's Sweet (Organic)
Starting at $4.19
Melon Seeds - Cantaloupe - Green Nutmegsmall size packet type seed packaging for - Melon Cantaloupe Green Nutmeg
-0
Heirloom
Melon Seeds - Cantaloupe - Green Nutmeg
Starting at $3.29
Yard Long Bean Seeds - Black (Organic)
-0
Yard Long Bean Seeds - Black (Organic)
Starting at $3.99
Melon Seeds - Cantaloupe - Top Markmid size pouch type seed packaging for - Zinnia Magellan Series Orange
-0
Heirloom
Melon Seeds - Cantaloupe - Top Mark
Starting at $2.99
Watermelon Seeds - Picnic - Regal Hybridmid size pouch type seed packaging for - Watermelon Picnic Regal Hybrid
-0
Watermelon Seeds - Picnic - Regal Hybrid
Starting at $5.99
Watermelon Seeds - Striped Peacock WR-60
-0
Heirloom
Watermelon Seeds - Striped Peacock WR-60
Starting at $5.63
Parsley Seeds - Kitchen Garden Blend (Organic)
Starting at $3.59
Watermelon Seeds - Picnic - Sweet Princess (Organic)
Starting at $4.19
Watermelon Seeds - Mini - Triple Treat Hybrid
Starting at $8.49
Watermelon Seeds - Mini - Treasure Chest Hybrid
Starting at $9.19
Melon Seeds - Casaba - Sungold
Starting at $2.99
Melon Seeds - Cantaoupe - Rocky Ford Green Flesh (Organic)
Starting at $3.59
Watermelon Seeds - Icebox - Yellow Gem Sweet (Organic)
Starting at $3.79
Melon Seeds - Charentais - Clearance Seeds
Starting at $11.82
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