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.
Done
Heat loving salad and stir-fry green with mild Swiss chard flavor.
Heat loving salad and stir-fry green.
50 baby; 85 full size
Very slow bolting, broadleaf mustard.
Very slow bolting, broadleaf mustard.
21 baby, 45 full size
Standard heat tolerant green leaf with disease resistance.
Standard heat tolerant green leaf. Organic seed with NOP-compliant pelleting.
52 Days
Bolt tolerant, widely adaptable with open habit suited for heads.
Bolt tolerant and widely adaptable. Conventional seed with NOP-compliant pelleting.
58 Days
Bright green leaves form dense, closed heads.
Bright green leaves form dense, closed heads.
48 Days
Most adaptable butterhead with excellent flavor and texture.
Most adaptable butterhead.
47 Days
Uniform redleaf with heat tolerance and heavy heads of frilly leaves.
Red leaf with heat tolerance.
55 Days
Heat loving, frost sensitive green with mild Swiss chard taste.
Heat loving, frost sensitive.
50 baby; 85 full size
Our most attractive green leaf lettuce.
Our most attractive green leaf lettuce. Conventional seed with NOP-compliant pelleting.
53 Days
Johnny's Exclusive
Large, bright green oak leaf with dense heads and long harvest window.
Bright green oak leaf.
48 Days
Colorful heat-tolerant spinach alternative.
Deep crimson-purple orach.
28 baby; 40 full size
Known as "Red Callaloo" in the Caribbean, comparable to spinach in taste.
Known as "Red Callaloo" in the Caribbean.
50 Days
Johnny's Exclusive
Dark red and green, deeply serrated leaves.
Dark red and green, deeply serrated leaves.
21 baby; 45 full size
Standard heat tolerant green leaf with disease resistance.
Standard heat tolerant green leaf.
52 Days
Sale
Uniform, disease-resistant greenleaf with excellent heat tolerance.
Heat tolerant, disease-resistant green leaf.
52 Days
Sale
Uniform, disease-resistant greenleaf with excellent heat tolerance.
Heat tolerant, disease-resistant green leaf. Conventional seed with NOP-compliant pelleting.
52 Days
A new standard for rugged field performance.
A new standard for rugged field performance.
23 Days
Dark green, compact romaine for mini and full-size heads.
Dark green, compact romaine for mini and full-size heads. Conventional seed with NOP-compliant pelleting.
46 Days