Spinach

Is it too hot to grow spinach now? During the summer months, I usually grow Malabar, a heat-tolerant cousin to spinach, but this year I'm trying heat tolerant Japanese spinach varieties instead.

Komatsuna, sold by Evergreen Seeds

most closely resembles spinach in texture and shape. The flavor of Komatsuna is spicier than traditional spinach.

Okame, sold by Kitazawe Seed Company has spinach-like flavor, but has thicker, serrated leaves. Grow Okame in late spring and early fall. Though it bolts later than traditional spinach, it does bolt quicker than other Japanese spinach varieties.

Samba, sold by Kitazawa Seed Company, is fairly heat tolerant and is resistant to powdery mildew. A bit crunchier than traditional spinach, Samba must be cooked before eating.

In partial shade to full sun, plant the seeds or transplants 12-18 inches apart in rows at least 2 ft. apart. Spinach is a heavy nitrogen feeder and requires a consistent watering schedule. Excessive water encourages powdery mildew, however, so allow the top two inches of soil to dry before watering again. Drip irrigation discourages moisture related disease.