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 - Honeydew - Green Flesh
105 Days to maturity. Cucumis melo. Green Flesh Honeydew Melon Seeds. A non-GMO, annual, open-pollinated, heirloom, heat-tolerant Honeydew Melon. Suitable for growing in containers, garden plots, raised beds, and greenhouses....
Corn Seeds - Flint - Hopi Blue
100 Days to maturity. Zea mays. Blue Hopi Corn Seeds. Non-GMO, annual, open-pollinated, heirloom, Flint and Flour Corn. Suitable for growing in garden plots or raised beds. Corn tolerates heat...
Sunflower Seeds - Dwarf Sunspot
65-80 Days to maturity. Helianthus annuus. Dwarf Sunspot Sunflower Seeds: Non-GMO. Open Pollinated. Ornamental. Annual. Heirloom. Dwarf Sunspot sunflower seeds grow the ideal compact alternative to summer's tallest and most...
Beet Seeds - Ruby Queen
52 days. The Ruby Queen beet is a variety that does very well in poor soils. It produces uniform, round globes and short tops. The leaves grow to be green...
Bean Seeds - Pole - Winged Bean
80-100 Days to maturity. Psophocarpus tetragonolobus. Winged Bean Seeds. Non-GMO, annual, heirloom, open-pollinated, heat-tolerant, pole, snap, Asian, specialty bean. Suitable for growing in containers, garden plots, raised beds, and greenhouses....
Watermelon Seeds - Picnic - Jubilee
90-97 Days to maturity. Citrullus lanatus. Jubilee Watermelon Seeds. Non-GMO, annual, open-pollinated, heirloom, heat tolerant, seeded, picnic watermelon. Suitable for growing in garden plots. These large picnic varieties can grow...
Beet Seeds - Early Wonder Tall Top
35-60 days. The Early Wonder Tall Top is an easy to grow beet that can be harvested as early as thirty five days after planting, and thrives in colder weather....
Carrot Seeds - Imperator 58
65-80 days. The Imperator 58 carrot is a colorful and crunchy addition to any home garden. Seeds produce nine inch long tapered roots with a bright orange color. Their tops...
Corn Seeds - Sweet - (su) Early Sunglow Hybrid
62 Days to maturity. Zea mays. Early Sunglow Hybrid Corn Seeds. Non-GMO, annual, hybrid, Sweet Corn. Suitable for growing in garden plots or raised beds. Corn tolerates heat and drought-prone...
Alfalfa - Organic - Cover Crop Seeds
60-70 Days. Medicago sativa. Organic. Non-GMO. Cover Crop. Also known as "lucerne", Organic non-GMO alfalfa is a year-round cover crop, widely grown for its nitrogen-replenishing benefits and fertile, all-natural springtime...
Soybean - Yellow (Organic) - Sprouting Seeds
2-5 Days to Harvest. Glycine max L. Merr.. Organic Yellow Soybean Sprouting Seeds. Organic. Non-GMO. Sprouting. High Germination. Non-GMO Organic yellow soybean seeds sprout one of the healthiest, tastiest, and...
Squash Seeds - Summer - Zucchini, Endurance BC, F1
Summer Squash, Endurance BC-2 F1. Cucurbita pepo. AKA: Zucchini. Squashes started showing up in Italian kitchens as early as 1600, the "Zucchini" variety probably originated around 1850. Extremely productive, and...
Squash Seeds - Summer - Zucchini Golden
55-65 days. Golden Zucchini Summer Squash Seeds. Cucurbita pepo. Annual. Open Pollinated. Non-GMO Heirloom Golden Zucchini is the summer squash to grow in the garden. it's ready in 55 days...
Chives Seeds - Garlic (Organic)
Non-GMO, Heirloom Organic Garlic Chives Herb Garden Seed from True Leaf Market. Allium tuberosum. Chives are native to regions in Asia and Europe. Organic Garlic Chives are also called "Chinese...
Squash Seeds - Summer - Golden Glory Hybrid
53 days. The 7 to 8 inch, 2-3" in diameter, smooth, waxy-skinned, gold fruits have creamy white, excellent tasting flesh. The vigorous open plant bears fruit of superior quality and...
Swiss Chard Seeds - Lucullus
50 days. The Lucullus Swiss Chard seed variety produces large green leaves and white stems. This variety is one of the best for gardeners looking for a swiss chard that...
Carrot Seeds - Purple
65-70 days. Purple carrot Seeds. Daucus carota subsp. sativus. Non-GMO. Heirloom. The Purple Carrot is unique in that it appears quite differently when it is sliced than when it is...
Adzuki Bean - Organic - Sprouting Seeds
3-4 Days to Harvest. Vigna angularis. Organic Adzuki Bean Sprouting Seeds. With over 30 grams of plant-based protein per cup, these organic sprouts will add nutrients and a fresh crunch...
Radish Seeds - Purple Plum
Non-GMO, Heirloom Purple Plum Radish Seeds. 25-30 days. Bright purple skin, firm white flesh, crisp, sweet and mild all season, never pithy of hot, hardy and adaptable. Download Free Vegetable...
Beet Seeds - Sugar Beet
Beta vulgaris (90 days) Sugar beets are a natural source of sugar and where most of the sugar industry derives its sugar from these days. Beets are up to 1...
Broccoli Seeds - Green Sprouting Calabrese
brassica oleracea var. capitata (60-90 days) Start Green Sprouting broccoli early in the season and by early summer you will have tons of sweet broccoli. Harvest the central head then...
Squash Seeds - Summer - Cocozelle Zucchini
50-60 Days to maturity. Cucurbita pepo. Cocozelle Zucchini Seeds. Non-GMO, annual, open-pollinated, heirloom. Suitable for growing in garden plots, raised beds, and containers. A traditional Italian heirloom introduced in the...
Beet Seeds - Chioggia
55 Days. Beta vulgaris. Annual. Open-pollinated. Pronounced "key-oh-jah" after the small Venetian villa town, non-GMO Chioggia beet seeds are a classic Italian garden heirloom grown and sold throughout the Mediterranean...
Bean Seeds - Bush - Top Notch Golden Wax
53 Days to maturity. Phaseolus vulgaris. Top Notch Golden Wax Bush Bean Seeds. Non-GMO, annual, organic, hybrid, open-pollinated, heirloom, AAS winner, high yielding, deer resistant, heat tolerant, drought tolerant, bush/pole,...
Bean Seeds - Bush - Henderson Lima
65-85 Days to maturity. Phaseolus lunatus. Henderson Lima Bean Seeds. Non-GMO, annual, open-pollinated, heirloom, high-yielding, heat-tolerant, drought-tolerant, bush, shell, lima bean. Suitable for growing in containers, garden plots, raised beds,...
Zucchini Seeds - Cocozelle - Organic
(48 days) Introduced prior to 1885. An Italian heirloom still widely grown today. Bush type squash with long cylindrical, dark green, zucchini. Organic Cocozelle Zucchini Squash Seeds Cocozelle has very...
Swiss Chard Seeds - Bright Lights
55 days. AAS Winner for 1998. A vibrant new Swiss Chard. Distinguished by stems of many different colors - gold, pink, orange, purple, red, and white. This variety is a...
Melon Seeds - Cantaloupe - Imperial 45
65-85 Days to maturity. Cucumis melo. Imperial 45 Cantaloupe Melon Seeds. A non-GMO, annual, open-pollinated, heirloom, AAS winner, heat-tolerant Cantaloupe Melon. Suitable for growing in garden plots, raised beds, and...
Chives Seeds
Non-GMO, Heirloom Chives Herb Garden Seed from True Leaf Market. Allium schoenoprasum. Chives are native to regions in Asia and Europe. This Chive cultivar is common in the U.S. and...
Corn Seeds - Sweet - Silver Queen Hybrid
88 Days to maturity. Zea mays. Silver Queen Hybrid Sweet Corn Seeds. Non-GMO, annual, hybrid, Sweet Corn. Suitable for growing in garden plots or raised beds. Corn tolerates heat and...
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