Heat Tolerant
Heat Tolerant
Heat Tolerant
In our trials, we tested and selected varieties that can endure heat successfully. These more heat tolerant versions of cool-weather crops give you a better chance of harvesting crops like lettuce, greens, and broccoli in the hot summer months. Choose from over sixty heat tolerant vegetable seed varieties to fill your seasonal planting slots.
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1 - 18 of 62
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Extra early and heat tolerant, our best round red radish.
Extra early radish.
21 Days
Most heat-tolerant lettuce for mini, full-size, has excellent flavor.
The most heat tolerant lettuce.
50 Days
Early, heat-tolerant standard variety with more shallowly-lobed leaf.
Early, heat tolerant.
38 Days
Heat-tolerant organic variety that produces high-quality roots.
Heat-tolerant organic radish.
22 Days
Best heat tolerance, ideally-suited for summer, early fall harvest.
Best heat tolerance.
71 Days
Large, heat-tolerant green butterhead with broad disease resistance.
Heat tolerant dark-green butterhead. Conventional seed with NOP-compliant pelleting.
48 Days
Johnny's Exclusive
Adriana Butterhead Lettuce (Boston)
Large, heat-tolerant green butterhead with broad disease resistance.
Heat tolerant green butterhead.
48 Days
Darkest red leaves with long harvest window and good flavor.
Darkest red leaves and a long harvest window.
48 Days
Heavy, vigorous white-stem pac choi; cold and heat tolerant.
Heavy, vigorous white-stem pac choi.
50 Days
Bolt-, heat-, cold-tolerant pac choi for full or medium-sized heads.
For full or medium-sized heads.
45 Days
Johnny's Exclusive
Black Summer Pac Choi (Bok Choy)
Beautiful dark-green pac choi, best at full size, suitable for minis.
Beautiful dark-green pac choi.
45 Days
Early, heat-tolerant standard variety.
Early, heat tolerant.
38 Days
Red summer crisp with good flavor and crispy green heart.
Red summer crisp with good flavor. Conventional seed with NOP-compliant pelleting.
48 Days
Large and fancy, heat-tolerant red butterhead for stunning display.
Heat tolerant red butterhead.
48 Days
Heat tolerant, full-size romaine.
A longtime favorite.
57 Days
Heat tolerant, full-size romaine.
Heat tolerant, full-size romaine. Organic seed with NOP-compliant pelleting.
57 Days
Large and fancy, heat-tolerant red butterhead for stunning display.
Heat tolerant red butterhead. Organic seed with NOP-compliant pelleting.
48 Days
Red summer crisp with good flavor and crispy green heart.
Red Summer Crisp with good flavor.
48 Days
1 - 18 of 62