Red Eared Butterheart Butterhead Lettuce Seed Organic
Our Red Eared Butterheart Butterhead Lettuce Seed is certified organic and open pollinated. Sounds like an embarrassed suitor in springtime, but here’s a new selection from the ‘Really Red Deer Tongue’ tribe, with dark red pointed leaves that are shorter, broader, more buttery and folded than RRDT. Frank Morton Farm Original Variety! OSSI (Open Source Seed Initiative) Pledged Variety. About 300+ seed per pack.
Lettuce Culture: May be started indoors in March and at regular intervals thereafter, or sowed outdoors as soon as ground can be worked. Many varieties won't germinate in soil temperatures above 75° and most shut down above 80°. Where available, we present data here from a California germination experiment at 84°.
Hardy. All lettuces except icebergs tolerate heavy frost. They grow best in cool weather with medium moisture. Use shade cloth to keep summer lettuce tender and sweet longer.
Sow every 2 weeks for continuous supply. Lettuce will not head unless thinned frequently and ruthlessly to final distance of 1'. Heavy nitrogen feeders.
Minimum germination soil temperature 35°, optimal range 40-80°, optimal temperatures 70-75°. Emergence takes 3 days at 68°soil temperature.
Days to maturity are from direct seeding.