Celtuce (Stem Lettuce) in Zone 4a & 4b

Lactuca sativa var. asparagina

When to plant celtuce (stem lettuce) in zone 4b

Zones 4a and 4b share the same average frost dates in our data, so this page covers both.

Method: Either: Start indoors for an earlier harvest, or direct-sow outside for less fuss. Celtuce (Stem Lettuce) tolerates either.

Start indoorsApr 17–Apr 24
Direct sow / transplant outsideApr 24–May 1
Estimated harvestJul 13–Jul 20 (~80 days after planting)

Spacing: 2 per square foot (square-foot-gardening spacing). Mature height: 1-1.5 ft.

Celtuce, also called stem lettuce, is a lettuce relative grown for a thick, crisp central stem instead of its leaves, a texture somewhere between celery and lettuce hearts once peeled.

How celtuce (stem lettuce) fits zone 4's season

Zone 4b's frost-free window runs about 128 days, from May 15 to September 20. Celtuce (Stem Lettuce) needs about 80 days from sowing to first harvest.

Good companions

No standout companions recorded yet for Celtuce (Stem Lettuce).

Where to buy celtuce seeds

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See it growing

Search YouTube for "growing celtuce (stem lettuce)" videos → (a live search, not a hand-picked video; results vary and aren't vetted by us)

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Growing Celtuce (Stem Lettuce) in USDA zone 4b

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Growing Celtuce (Stem Lettuce) in USDA zone 4b: when to start seeds indoors, when to direct-sow, and when to expect a harvest.

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