Lettuce

Lactuca sativa

Layer 4 · Herbaceous
Edible companion

Status by region

No restrictions recorded in the lists we checked.

Checked against the European Union list (Regulation 1143/2014) · Portugal's national invasive species list (Decreto-Lei 92/2019).

Information based on the cited sources, not legal advice — always confirm your local rules.

About

Native to the Middle East, it is an annual herbaceous plant appreciated worldwide for its tender, fresh leaves. It serves as excellent ground cover in the herbaceous layer, taking advantage of microclimates shaded by larger plants.

It can be planted now — September is one of the best months.

See which trees lettuce grows well with

These trees share this species' soil and climate — the pairing is inferred from conditions, not from a guild we have already seen.

Cork oak

No account needed.

Needs

Water: Medium
Light: Full sun
Size: Herbaceous up to 0.3 m
Mature diameter: 0.3 m
Soils: Loam, Clay, Sandy
Climates: Atlantic coast, Inland / Continental, Hot, dry Mediterranean, Mountain / cold

Calendar

January
February — Planting
March — Planting
April — Harvest — Planting
May — Harvest
June — Harvest
July — Harvest
August — Harvest — Planting
September — Harvest — Planting
October — Harvest
November
December

Harvest
Planting

Medicinal use: The leaves are rich in vitamins and water, possessing a mild calming and digestive effect.

Where to buy

Central trees worth considering

May work well together — same soil and climate, complementary layers. We have not seen this combination in a generated guild yet.

Cork oak

May grow well with

Suggestions worked out from growing conditions — same soil and climate, complementary layers and functions. These are not observed guilds; treat them as a starting point to try on your own land.