June is a month of full-throttle gardening across most of the country. Cold-winter zones are finally free of frost and working hard to get warm-season crops in the ground — but June also brings the first quiet signal that fall is not far off, and a few crops need to go indoors now to be ready in time. Mild-winter zones are managing a garden already in high gear, balancing harvests, succession sowing, and the first real heat of the season. And in the warmest zones, the focus shifts decisively toward heat-tolerant crops and keeping the garden productive as temperatures peak. Wherever you garden, June rewards attentiveness.
Cold Winter Zones (3–7): June is the heart of the warm-season planting window. The frost risk is behind you, soils are warming, and this is your window to get tomatoes, peppers, cucumbers, squash, beans, and corn in the ground. At the same time, June is when fall planting quietly begins. Leeks, pansies, and violas all need to be started indoors this month if you want them for a fall harvest or bloom before the October freeze.
Mild Winter Zones (8–9a): By June, gardens in these zones are in full production. Most warm-season crops are in the ground and growing fast. The main jobs this month are watering consistently, mulching to hold moisture and cool the soil, and staying on top of pests. It is still worth succession sowing heat-tolerant crops early in the month, but as temperatures climb, the emphasis shifts from planting to tending and harvesting. Fall planting starts in July and August for these zones — no action needed yet, but a good month to plan.
Warm Winter Zones (9b–12): June marks the start of high summer, and gardening strategies shift accordingly. Heat-tolerant crops like okra, sweet potatoes, cowpeas, and yard-long beans thrive now, while most cool-season crops are long finished. In frost-free areas with reliable summer rainfall — particularly Florida and Hawaii — tropical crops come into their own. Fall planting is still months away, but worth thinking about: in these zones, fall is the prime growing season, and August and September are when the cool-season garden gets rolling again.
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![Legend: H for Heirloom, O for Organic, A for AAS Winner, F for staff favorites]()
Melon Seeds - Casaba - Sungold (Organic)
85-110 Days to maturity. Cucumis melo. Organic Sungold Casaba Melon Seeds. A non-GMO, annual, organic, open-pollinated, heirloom, heat-tolerant, drought-tolerant, Casaba Melon. Suitable for growing in garden plots, raised beds, and...
Radish Seeds - Giant Luo Buo
Radish Seeds - Giant Luo Buo. Heirloom, Non-GMO. Raphanus sativus. 80-100 days. Cool season annual. This large oval white radish grows 8-10" long and 5-6" in diameter and is very...
Melon Seeds - Branco Do Ribatejo
100 Days to maturity. Cucumis melo. Branco Do Ribatejo Melon Seeds. A non-GMO, annual, open-pollinated, heirloom, heat-tolerant Melon. Suitable for growing in garden plots, raised beds, and greenhouses. The Branco...
Melon Seeds - Cantaloupe - Scrumptious Hybrid
100 Days to maturity. Cucumis melo var. cantalupensis. Scrumptious Hybrid Cantaloupe Melon Seeds. A non-GMO, annual, F1 hybrid, heat-tolerant Cantaloupe Melon. Suitable for growing in containers, garden plots, raised beds,...
Melon Seeds - Whimsy F1
100 Days to maturity. Cucumis melo var. inodorus. Whimsy Hybrid Melon Seeds. A non-GMO, annual, F1 hybrid, heat-tolerant specialty Melon. Suitable for growing in garden plots, raised beds, and greenhouses....
Melon Seeds - Amarillo Oro
100 Days to maturity. Cucumis melo. Amarillo Oro Melon Seeds. A non-GMO, annual, open-pollinated, heirloom, heat-tolerant Melon. Suitable for growing in garden plots, raised beds, and greenhouses. These heirloom melons...
Melon Seeds - Honeydew - Fabulous Hybrid
100 Days to maturity. Cucumis melo. Fabulous Hybrid Honeydew Melon Seeds. A non-GMO, annual, F1 hybrid, heat-tolerant Honeydew Melon. Suitable for growing in garden plots, raised beds, and greenhouses. The...
Melon Seeds - Cantaloupe - Delightful Hybrid
100 Days to maturity. Cucumis melo. Delightful Hybrid Cantaloupe Melon Seeds. A non-GMO, annual, F1 hybrid, heat-tolerant Cantaloupe Melon. Suitable for growing in garden plots, raised beds, and greenhouses. Bite...
Sunflower Seeds - Lemon Queen (Organic)
80-100 Days to maturity. Helianthus annus. Organic Lemon Queen Sunflower Seeds. Non-GMO, organic, open-pollinated, heirloom, annual, multi-branching sunflower. This bright sunflower features light, lemony petals and a light brown center...
Melon Seeds - Cantaloupe - Inspire Hybrid
100 Days to maturity. Cucumis melo var. cantalupensis. Inspire Hybrid Cantaloupe Melon Seeds. A non-GMO, annual, F1 hybrid, heat-tolerant Cantaloupe Melon. Suitable for growing in containers, garden plots, raised beds,...
Melon Seeds - Giallo Canary Rugoso
90-110 Days to maturity. Cucumis melo. Giallo Canary Rugoso Melon Seeds. A non-GMO, annual, open-pollinated, heat-tolerant melon. Suitable for growing in garden plots, raised beds, and greenhouses. This unique canary...
Melon Seeds - Cantaloupe - Incredible Hybrid
100 Days to maturity. Cucumis melo. Incredible Hybrid Cantaloupe Melon Seeds. A non-GMO, annual, F1 hybrid, heat-tolerant Cantaloupe Melon. Suitable for growing in garden plots, raised beds, and greenhouses. The...
Carrot Seeds - St. Valery
70-100 Days to maturity. Daucus carota var. sativus. St Valery Carrot Vegetable Seeds. Non-GMO, annual, open-pollinated, heirloom seeds. A very old, heirloom carrot strain that produces smooth, uniform orange-red roots...
Amaranth Seeds - Red Army
Red Army Amaranth Seeds. Non-GMO. Heirloom. Microgreen and Garden Seeds. Amaranthus cruentus. AKA: Blood Amaranth, Princes Feather, or Mexican Grain Amaranth. 100-130 days. Red Army amaranth is a darker and...
Melon Seeds - Honeydew - Orange Flesh (Organic)
105 Days to maturity. Cucumis melo. Organic Orange Flesh Honeydew Melon Seeds. A non-GMO, annual, organic, open-pollinated, heirloom, heat-tolerant Honeydew Melon. Suitable for growing in containers, garden plots, raised beds,...
Melon Seeds - Sharlyn
90 Days to maturity. Cucumis melo. Sharlyn Melon Seeds. A non-GMO, annual, open-pollinated, heirloom, heat tolerant, drought tolerant, specialty Melon. Suitable for growing in garden plots, raised beds, and greenhouses....
Oats Seeds - Tesuque - Organic
Certified Organic Tesuque Oats - Whole, Husk On. Avena nuda. 100 to 120 days to full maturity. Non-GMO, Heirloom, Open Pollinated. Annual. Originally from Tesuque Pueblo, New Mexico. About 90...
Melon Seeds - Casaba - Sungold
85-110 Days to maturity. Cucumis melo. Sungold Casaba Melon Seeds. A non-GMO, annual, open-pollinated, heirloom, heat-tolerant, drought-tolerant, Casaba Melon. Suitable for growing in garden plots, raised beds, and greenhouses. This...
Sunflower Seeds - Black Mammoth (Organic)
80 Days to maturity. Helianthus annuus. Organic Black Mammoth Sunflower Seeds: Non-GMO. Open Pollinated. Ornamental. Annual. The Black Mammoth sunflower is striking and grows up to 10 feet tall and...
Melon Seeds - Honeydew - Extravagant Hybrid
100 Days to maturity. Cucumis melo. Extravagant Hybrid Melon Seeds. A non-GMO, annual, F1 hybrid, heat-tolerant honeydew cantaloupe Melon. Suitable for growing in garden plots, raised beds, and greenhouses. Resistant...
Melon Seeds - Casaba - Tremendous Hybrid
100 Days to maturity. Cucumis melo. Tremendous Hybrid Casaba Melon Seeds. A non-GMO, annual, F1 hybrid, heat-tolerant, Casaba Melon. Suitable for growing in garden plots, raised beds, and greenhouses. Tremendous...
Watermelon Seeds - Picnic - Summer Color Mix
Summer Color Mix Watermelon Seeds. 70 to 100 days to maturity. Citrullus lanatus. Open Pollinated. Annual. A mixture of red pink white yellow and orange fleshed seeded watermelons. Approximately 400...
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