Linaria maroccana

RHS Plant Profile

annual toadflax

Dorling Kindersley 2003

Annual Biennial

An upright annual with linear leaves and terminal racemes of 2-lipped purple, pink or white flowers in summer

Position

Full sun

Soil Types

Loam, Sand

Max Height

0.1-0.5 metres

Max Spread

0-0.1 metre

Size

Time to Maturity: 1–2 years
Max Spread: 0-0.1 metre
Max Height: 0.1-0.5 metres

Growing Conditions

Loam Sand

Moisture: Well–drained
pH: Acid or Alkaline or Neutral

Position

Full sun

Aspect: South–facing or West–facing
Exposure: Exposed or Sheltered
Hardiness

Hardiness Ratings

All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets

H1A: under glass all year (>15C)
H1B: can be grown outside in the summer (10 - 15)
H1C: can be grown outside in the summer (5 - 10)
H2: tolerant of low temperatures, but not surviving being frozen (1 to 5)
H3: hardy in coastal and relatively mild parts of the UK (-5 to 1)
H4: hardy through most of the UK (-10 to -5)
H5: hardy in most places throughout the UK even in severe winters (-15 to -10)
H6: hardy in all of UK and northern Europe (-20 to -15)
H7: hardy in the severest European continental climates (< -20): H6

Colour & Scent

Season	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family: Plantaginaceae
Native to GB/Ireland: No
Foliage: Deciduous
Habit: Columnar upright
Genus: Linaria can be annuals, biennials or herbaceous perennials, with simple leaves and terminal racemes of 2-lipped flowers with conspicuous spurs
Name Status: Correct

How to Grow

Cultivation

Grow in moderately fertile, well-drained, preferably sandy soil in full sun

Propagation

Propagate by seed sown in-situ in early sping

Suggested planting locations and garden types

Cottage and informal garden
Flower borders and beds

Pruning

After flowering, plants can be cut back to prevent self-seeding

Pests

May be susceptible to aphids

Diseases

May be susceptible to powdery mildews