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]()
Watermelon Seeds - Tom Watson
Tom Watson Watermelon Seeds. 90 Days. Non-GMO, heirloom, open pollinated seeds. Citrullus lanatus. AKA: Ole Tom Watson. A very old heirloom variety originating from the state of Georgia, dating back...
Hulled Millet (Organic) - Bulk Grains
Hulled millet has had the husk removed, and as such won't sprout well. However hulled millet is ideal for grinding into millet flour, making into cereals or porridge, making millet...
Radish Seeds - Korean - Sushiro - Hybrid
55 to 60 days to maturity in spring and 35 to 40 days to maturity in fall. Raphanus sativus. Hybrid Sushiro Korean Radish Seeds. Cool season hybrid annual. Not a...
Squash Seeds - Summer - Black Jade Hybrid
50-60 Days to maturity. Cucurbita pepo. Black Jade Hybrid Summer Squash Seeds. Non-GMO, annual, F1 hybrid. Suitable for growing in fields, containers, garden plots, raised beds, and greenhouses. Resistant to...
Squash Seeds - Winter - Pilgrim F1
Pilgrim F1 Hybrid Squash Seeds. Cucurbita moschata. F1 Hybrid. Non-GMO. Annual. 80 days to maturity. This hybrid butternut squash performs well under a wide variety of growing conditions and has...
Radish Seeds - Miyashige Green Neck
Radish Seeds - Miyashige Green Neck. Heirloom, Non-GMO. Raphanus sativus. 60 days. Cool season annual. One of the most popular varieties used in pickling. The mildly flavored, crisp, white roots...
Squash Seeds - Winter - Hubbard White
90 days to maturity. Cucurbita maxima. Hubbard White Winter Squash Seeds.Non-GMO, annual, heirloom, open-pollinated. Suitable for growing in fields, garden plots, and raised beds. Classic white-skinned Hubbard with thick, bumpy...
Squash Seeds - Winter - American Tondo
100 days to maturity. Cucurbita pepo. American Tondo Winter Squash Seeds. Non-GMO, annual, heirloom, open-pollinated. This is suitable for growing in fields, containers, garden plots, raised beds, and greenhouses. Italian...
Swiss Chard Seeds - Oriole Orange
60 Days to maturity. Beta vulgaris var. cicla. Oriole Orange Swiss Chard Vegetable Seeds. Non-GMO, annual, open-pollinated, swiss chard. Grow in garden plots, raised beds, containers (at least 12 inches),...
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...
Radish Seeds - April Cross - Hybrid
Radish Seeds - April Cross - Hybrid. Non-GMO. Raphanus sativus. 60 days. Cool season annual. This giant white radish or daikon is a market leader for its extra-slow bolting habit,...
Squash Seeds - Summer - Ronde de Nice
50-60 Days to maturity. Cucurbita pepo. Ronde De Nice Squash Seeds. Non-GMO, annual, open-pollinated, heirloom. Suitable for growing in fields, containers, garden plots, raised beds, and greenhouses. Has demonstrated some...
Squash Seeds - Winter - Table Princess F1 PMT
Table Princess F1 PMT Hybrid Squash Seeds. Cucurbita pepo. F1 Hybrid. Non-GMO. Annual. 70 days to maturity. Table Princess F1 has a semi-bush habit, making it possible to plant in...
Squash Seeds - Winter - Triamble
105 days to maturity. Cucurbita maxima. Triamble Winter Squash Seeds. Non-GMO, annual, heirloom, open-pollinated. Suitable for growing in fields, garden plots, and raised beds. An unusually beautiful Australian heirloom with...
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,...
Bean Seeds - Pole - Prizewinner Runner
75 Days to maturity. Phaseolus coccineus. Prizewinner Runner Bean Seeds. Non-GMO, annual, open-pollinated, heirloom, drought tolerant, pole, snap bean. Suitable for growing in containers, garden plots, raised beds, and greenhouses....
Melon Seeds - Sakata's Sweet
85-90 Days to maturity. Cucumis melo. Sakata's Sweet Melon Seeds. A non-GMO, annual, open-pollinated, heirloom, heat-tolerant Asian Melon. Suitable for growing in garden plots, raised beds, and greenhouses. Resistant to...
Squash Seeds - Summer - Summer Melody Blend
Summer Melody Blend Summer Squash Seeds. 45 days to maturity. Cucurbita pepo. Open Pollinated, Annual. This component blend of Golden Zucchini Black Beauty Grey Zucchini and White Bush Scallop is...
Radish Seeds - White Cannon - Hybrid
58 Days to maturity. Raphanus sativus. White Cannon Radish Hybrid Seeds. Cool/Warm Season Annual. While it may not seem as exciting as some other varieties, this hybrid daikon radish focuses...
Squash Seeds - Summer - Zucca de Lungo Verde
Italian Summer Squash, Zucca de Lungo Verde. 50-60 days. Cucurbita pepo. Produces dark green squash about 8". It has a very rich flavor and color. Non-GMO, heirloom, premium open pollinated...
Melon Seeds - Crenshaw - Crenshaw (Organic)
110 Days to maturity. Cucumis melo. Organic Crenshaw Melon Seeds. A non-GMO, annual, organic, open-pollinated, heirloom, heat-tolerant Crenshaw Melon. Suitable for growing in containers, garden plots, raised beds, and greenhouses....
Squash Seeds - Winter - Gold Nugget - Organic
Organic Gold Nugget Winter Squash Seeds. 75 - 95 days to maturity. Can be grown in containers. Cucurbita maxima. Heirloom, Non-GMO, Annual. Early compact runnerless plant with a Buttercup shape....
Melon Seeds - Cantaloupe - Haogen (Organic)
80-85 Days to maturity. Cucumis melo. Organic Haogen Cantaloupe Melon Seeds. A non-GMO, annual, organic, open-pollinated, heirloom, heat-tolerant Cantaloupe Melon. Suitable for growing in garden plots, raised beds, and greenhouses....
Bean Seeds - Bush - Kouri Edamame Soybean
90 Days to maturity. Glycine max. Kouri Soybean Bean Seeds. Non-GMO, annual, open-pollinated, heirloom, high-yielding, bush, shell, soybean, Asian bean. Suitable for growing in containers, garden plots, raised beds, and...
Corn Seeds - Sweet - Inspiration Hybrid
70-80 Days to maturity. Zea mays. Inspiration Hybrid Corn Seeds. Non-GMO, annual, F1 hybrid, (sh2) sweet corn. Suitable for growing in garden plots or raised beds. Corn tolerates heat and...
Watermelon Seeds - Mini - Triple Treat Hybrid
85 days to maturity. Citrullus lanatus. Triple Treat F1 Hybrid Watermelon Seeds. Non-GMO, Annual, F1 Hybrid, Heat Tolerant, Seedless, Mini Watermelon. No picnic is complete without Triple Treat! This seedless...
Watermelon Seeds - Picnic - Triple Sweet Hybrid
65 days to maturity. Citrullus lanatus. Triple Sweet F1 Hybrid Watermelon Seeds. Non-GMO, annual, F1 Hybrid, heat tolerant, seedless, picnic watermelon. Triple Sweet F1 is a sweet Crimson Sweet triploid...
Watermelon Seeds - Mini - Treasure Chest Hybrid
Treasure Chest F1 Hybrid Watermelon Seeds. Citrullus lanatus. F1 Hybrid. Non-GMO. Annual. 80 days to maturity. Seedless. Treasure Chest F1 is a yellow triploid watermelon with sweet, bright yellow flesh....
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 - Goldie
75 Days to maturity. Helianthus annuus. Goldie F1 Hybrid Sunflower Seeds: Non-GMO. Ornamental. Annual. Goldie is a feathery and unique hybrid sunflower that looks like pompons of sunlight! If you...
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