Lettuce

Spacing

6 in(4 / sqft)

Trellis

no

Seed indoor

Feb 18(-8 w)

Transplant

Mar 18(-4 w)

Harvest

~7 weeks from sowing

Last fall harvest

Oct 15 – Nov 12(at frost to +4 w)

Succession

every 2-3 weeks

Water

1-2 per week

Seed shelf life

5–6 y

Lifecycle

annual

Seed source

local nursery (variety not tracked)

6 in is mini-head spacing (full heads are 10-12 in). Hardened seedlings tolerate down to ~20°F, stretching fall harvest a few weeks past first frost.