Lettuce- Ruby Red Leaf (Heirloom)

Lettuce- Ruby Red Leaf (Heirloom) Lactuca sativa Darkest red of all the red-tinted lettuces we have, Ruby's medium sized, compact, crisp, sweet green leaves, are marbled with deep red on the top half of the leaf. It is fairly heat tolerant, slow to bolt, and does not fade or turn bitter in warm weather.  Plant 1/4" deep in rows spaced 18-24 inches apart. Matures in about 53-54 days.  Days to germination 3-10 days Days to maturity 45-50 days Life cycle annual Plant time/Harvest Plant seeds outdoors any time if night temperatures are 70 or lower. Harvest late fall through mid-spring Spacing 10-18 in. Sun full sun in fall, winter and part shade in spring Soil temperature 35-70 degrees F. Optimum soil P.H 6.1-7.5 Height 12 in.