Lactuca sativa

RHS Plant Profile
common lettuce

Other common names

garden lettuce

Annual Biennial

This is the species from which all our lettuce varieties have been bred. It forms a loose rosette of green or red-purple leaves which then elongates to a tall flowerhead of small, pale yellow flowers - as seen in all our food lettuces if they 'bolt'. Many varieties are available, varying in colour, size and shape, some less-prone to bolting than others

Position

Full sun

Soil Types

Chalk, Clay, Loam, Sand

Max Height

0.5-1 metres

Max Spread

0.1-0.5 metres

Size

Time to Maturity
1–2 years
Max Spread
0.1-0.5 metres
Max Height
0.5-1 metres

Growing Conditions

Chalk Clay Loam Sand
Moisture
Moist but well–drained or Well–drained
pH
Acid or Alkaline or Neutral

Position

Full sun
Aspect
East–facing or North–facing or South–facing or West–facing
Exposure
Exposed or Sheltered
Hardiness
H2

Colour & Scent

Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Asteraceae
Native to GB/Ireland
No
Foliage
Deciduous
Habit
Columnar upright
Genus
Lactuca can be annuals, biennials, perennials or shrubs, with alternate leaves, milky white sap and daisy-like flowers in white, yellow or blue. The genus includes a wide range of wild plants, as well as species cultivated for their edible leaves (lettuce)
Name Status
Correct

How to Grow

Cultivation

Grow in any moisture retentive soil for more information see lettuce cultivation

Propagation

Propagate by seed. See sowing vegetable seeds

Suggested planting locations and garden types

  • Cottage and informal garden

Pruning

No pruning required

Pests

May be susceptible to lettuce root aphid

Diseases

May be susceptible to grey moulds and downy mildews