Featured Heat Tolerant
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Heat Tolerant
In our trials, we test and select varieties that can endure heat successfully. This includes heat-tolerant versions of cool-weather crops; for example, heat-tolerant lettuce, spinach, broccoli, and kale varieties that can help keep you in greens throughout the hot summer months. We also seek out highly heat-tolerant versions of warm-weather crops, such as heat-tolerant tomatoes with the ability to set fruit even during the summer heat of southern growing zones. Choose from a large assortment of heat-tolerant vegetable seed varieties to fill your seasonal planting slots. Not sure of what to choose for your growing zone? Our customer service team is ready to help.
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19 - 36 of 69
Done
Heat-resistant large bunching onions, leaves resist breaking.
Heat-resistant, large bunching onions.
65 Days
Early, heat-tolerant standard variety.
Early, heat tolerant.
21 baby; 38 full size
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
Popular "red" mustard from Japan, possesses mild mustard flavor.
Popular "red" mustard from Japan.
21 baby; 45 full size
Heat tolerant, full-size romaine.
A longtime favorite. Conventional seed with conventional pelleting.
57 Days
The most heat tolerant lettuce.
The most heat tolerant lettuce. Organic seed with NOP-compliant pelleting.
50 Days
Large and fancy, heat tolerant red butterhead for stunning display.
Heat tolerant red butterhead. Organic seed with NOP-compliant pelleting.
48 Days
Uniform redleaf with heat tolerance and heavy heads of frilly leaves.
Red leaf with heat tolerance.
55 Days
Bolt-, heat-, cold-tolerant pac choi for full or medium-size heads.
For full or medium-size heads.
45 Days
Most adaptable butterhead with excellent flavor and texture.
Most adaptable butterhead.
47 Days
A red Summer Crisp with good flavor.
A red Summer Crisp with good flavor. Conventional seed with NOP-compliant pelleting.
48 Days
A red Summer Crisp with good flavor.
A red Summer Crisp with good flavor.
48 Days
Darkest red leaves with long harvest window and good flavor.
Darkest red leaves and a long harvest window.
48 Days
Most adaptable butterhead with excellent flavor and texture.
Most adaptable butterhead. Conventional seed with NOP-compliant pelleting.
47 Days
Heat loving salad and stir-fry green with mild Swiss chard flavor.
Heat loving salad and stir-fry green.
50 baby; 85 full size
The most attractive green leaf lettuce.
The most attractive green leaf lettuce. Conventional seed with NOP-compliant pelleting.
53 Days
Fast growing blonde romaine for baby leaf and full-size heads.
Blonde romaine for baby leaf and full-size heads.
29 baby
Bolt tolerant, widely adaptable with open habit suited for heads.
Bolt tolerant and widely adaptable.
58 Days
19 - 36 of 69