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.
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Bean Seeds - Bush - Black Valentine
50-65 Days to maturity. Phaseolus vulgaris. Black Valentine Bush Bean Seeds. Non-GMO, annual, open-pollinated, heirloom snap or shell bush bean. Suitable for growing in containers, garden plots, raised beds, and...
Melon Seeds - Cantaloupe - Golden Delicious
75 Days to maturity. Cucumis melo var. cantalupensis.. Golden Delicious Cantaloupe Melon Seeds. A non-GMO, annual, heirloom, open-pollinated, heat-tolerant Cantaloupe Melon. Suitable for growing in garden plots, raised beds, and...
Melon Seeds - Cantaloupe - Hearts of Gold (Organic)
80-90 Days to maturity. Cucumis melo. Organic Hearts of Gold Cantaloupe Melon Seeds. A non-GMO, annual, open-pollinated, heirloom, heat-tolerant Cantaloupe Melon. Suitable for growing in garden plots, raised beds, and...
Melon Seeds - Honeydew - Tam Dew
100 Days to maturity. Cucumis melo. Tam Dew Melon Seeds. A non-GMO, annual, open-pollinated, heirloom, heat tolerant, Honeydew Melon. Suitable for growing in garden plots, raised beds, and greenhouses. Resistant...
Melon Seeds - Aspire Hybrid
100 Days to maturity. Cucumis melo. Aspire Hybrid Melon Seeds. A non-GMO, annual, F1 hybrid, heat-tolerant French Charentais Melon. Suitable for growing in containers, garden plots, raised beds, and greenhouses....
Squash Seeds - Summer - Genovese Zucchini
Italian Squash, Genovese. 50-60 days. Cucurbita pepo. AKA: Zucchini Genovese. Squashes started showing up in Italian kitchens as early as 1600, the "Zucchini" variety probably originated around 1850. 250 seeds/ounce....
Corn Seeds - Ornamental - Carousel
100-110 Days to maturity. Zea mays. Ornamental-carousel Corn Seeds. Non-GMO, annual, open-pollinated, heirloom, Pop Corn. Suitable for growing in garden plots or raised beds. Corn tolerates heat and drought-prone regions....
Corn Seeds - Dent - Silvermine
112 Days to maturity. Zea mays. Silvermine Corn Seeds. Non-GMO, annual, open-pollinated, heirloom, Dent Corn. Suitable for growing in garden plots or raised beds. Corn tolerates heat and drought-prone regions....
Corn Seeds - Sweet - Abundance Hybrid
70-100 Days to maturity. Zea mays. Abundance Corn Seeds. Non-GMO, annual, F1 hybrid, Sweet Corn. Suitable for growing in garden plots or raised beds. Corn tolerates heat and drought-prone regions....
Watermelon Seeds - Picnic - Jubilee (Organic)
90-97 Days to maturity. Citrullus lanatus. Organic Jubilee Watermelon Seeds. Non-GMO, annual, organic, open-pollinated, heirloom, heat tolerant, seeded, picnic watermelon. Suitable for growing in garden plots. Tolerant to Fusarium Wilt...
Melon Seeds - Early Silver Line
76 Days to maturity. Cucumis melo. Early Silver Line Melon Seeds. A non-GMO, annual, open-pollinated, heirloom, heat-tolerant Asian Melon. Suitable for growing in garden plots, raised beds, and greenhouses. The...
Watermelon Seeds - Picnic - Peacock Improved
88 Days to maturity. Citrullus lanatus. Peacock Improved Watermelon Seeds. Non-GMO, annual, open-pollinated, heirloom, heat tolerant, seeded, picnic watermelon. Suitable for growing in garden plots. AKA: Peacock Improved Shipper. A...
Watermelon Seeds - Picnic - Moon & Stars
95 Days to maturity. Citrullus lanatus. Moon & Stars Watermelon Seeds. Non-GMO, annual, open-pollinated, heirloom, heat tolerant, seeded, picnic watermelon. Suitable for growing in garden plots. The history of the...
Squash Seeds - Winter - Hopi Orange (Organic)
80-120 Days to maturity. Cucurbita maxima. Hopi Orange (Organic) Squash Seeds. Non-GMO, annual, organic, open-pollinated, heirloom. Suitable for growing in fields, containers, garden plots, raised beds, and greenhouses. Resistant to...
Squash Seeds - Winter - Delica - Hybrid
Squash Seeds - Winter - Delica - Hybrid. Non-GMO. Cucurbita maxima. 95-105 days (45-50 days after flowering). Warm season annual. Adaptable to many growing and soil conditions, this plant consistently...
Squash Seeds - Summer - Lebanese White Bush
Lebanese White Bush Summer Squash Seeds. 45 Days to maturity. Non-GMO, open pollinated, heirloom seeds. Cucurbita pepo. AKA: Lebanese Squash. Though not a high producer, Lebanese White Squash is delicious...
Corn Seeds - Flour - Montana Morado Maize
90-110 Days to maturity. Zea mays. Montana Morado Maize Corn Seeds. Non-GMO, warm-weather annual, open-pollinated, certified organic flour corn. Suitable for growing in garden plots or raised beds. Montana Morado...
Corn Seeds - Sweet - Jubilee Hybrid (treated)
80-89 Days to maturity. Zea mays. Jubilee Hybrid Corn Seeds. Non-GMO, annual, hybrid, Sweet Corn. Suitable for growing in garden plots or raised beds. Corn tolerates heat and drought-prone regions....
Squash Seeds - Winter - Autumn Acorn Blend
Autumn Acorn Blend Winter Squash Seeds. 45 days to maturity. Cucurbita pepo. Heirloom, Annual. This is a component blend of Table Princess Table Gold White Ace and Mardi Gras. ~...
Corn Seeds - Dent - Eureka Ensilage
110-120 Days to maturity. Zea mays. Eureka Ensilage Corn Seeds. Non-GMO, annual, open-pollinated, heirloom, Dent Corn. Suitable for growing in garden plots or raised beds. Corn tolerates heat and drought-prone...
Squash Seeds - Winter - Hubbard Baby Blue
Hubbard Baby Blue Winter Squash Seeds. 90 to 100 Days. Non-GMO, Open Pollinated, Heirloom. Winter Squash. Cucurbita maxima. Dating back to the 1950s, the Hubbard Baby Blue was developed by...
Corn Seeds - Popcorn - Strawberry
100 Days to maturity. Zea mays. Popcorn - Strawberry Corn Seeds. Non-GMO, annual, open-pollinated, heirloom, Pop Corn. Suitable for growing in garden plots or raised beds. Corn tolerates heat and...
Squash - Winter - Hubbard Baby Green
Hubbard Baby Green Winter Squash Seeds. 90 to 100 Days. Heirloom, Open Pollinated. Non-GMO. Winter Squash type. Cucurbita maxima. The Baby Green Hubbard is a scaled down version of the...
Melon Seeds - Ananas
90-110 Days to maturity. Cucumis melo. Ananas Melon Seeds. A non-GMO, annual, open-pollinated, heirloom, heat-tolerant Melon. Suitable for growing in garden plots, raised beds, and greenhouses. Originating from France, these...
Watermelon Seeds - Icebox - Bush Sugar Baby (Organic)
75 Days to maturity. Citrullus lanatus. Bush Sugar Baby Watermelon Seeds. Non-GMO, annual, organic, open-pollinated, heirloom, heat tolerant, seeded, Icebox watermelon. Suitable for growing in garden plots and large containers...
Squash Seeds - Winter - Hubbard Chicago Warted
Hubbard Chicago Warted Winter Squash Seeds. 110 Days to Harvest. Non-GMO Heirloom, Open Pollinated, Annual Seeds. Cucurbita maxima. AKA Green Warted Hubbard Squash. Hubbard Chicago Winter Squash is a very...
Watermelon Seeds - Icebox - Bush Jubilee
90 Days to maturity. Citrullus lanatus. Bush Jubilee Watermelon Seeds. Non-GMO, annual, open-pollinated, heirloom, heat tolerant, seeded, Icebox watermelon. Vines spread 3-5 ft. Produces watermelons that are about 10-13 lbs....
Corn Seeds - Popcorn - Neon Pink
85-105 Days to maturity. Zea mays. Neon Pink Corn Seeds. Non-GMO, annual, open-pollinated, heirloom, Pop Corn. Suitable for growing in garden plots or raised beds. Corn tolerates heat and drought-prone...
Watermelon Seeds - Picnic - Tendersweet Orange (Organic)
Organic Tendersweet Orange Watermelon Seeds. 90 days to maturity. Citrullus lanatus. Heirloom, Non-GMO, Annual. ~ 400 Seeds/ounce. Download Free Vegetable Growing Guide PDF Watermelon Seeds - Tendersweet Orange - Organic...
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