Diascia rigescens 'Anne Rennie'

RHS Plant Profile

twinspur 'Anne Rennie'

Synonyms

Diascia fetcaniensis 'Anne Rennie'
Diascia rigescens pale-flowered

Bedding Herbaceous Perennial

A trailing perennial with erect and semi-erect, branching stems and heart-shaped, deeply toothed, stalkless, semi-evergreen leaves. In summer it bears tall, dense spires of rose-pink flowers with characteristic small round 'windows' and short, incurved spurs. Height around 30cm (12in).

Position

Full sun, Partial shade

Soil Types

Chalk, Clay, Loam, Sand

Max Height

0.1-0.5 metres

Max Spread

0.1-0.5 metres

Size

Time to Maturity: 1 year
Max Spread: 0.1-0.5 metres
Max Height: 0.1-0.5 metres

Growing Conditions

Chalk Clay Loam Sand

Moisture: Moist but well–drained or Well–drained
pH: Acid or Alkaline or Neutral

Position

Full sun Partial shade

Aspect: East–facing or South–facing or West–facing
Exposure: 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): H3

Colour & Scent

Season	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family: Scrophulariaceae
Native to GB/Ireland: No
Foliage: Semi evergreen
Habit: Trailing, Clump forming
Genus: Diascia can be annuals or semi-evergreen perennials, usually making a mat of neat foliage with racemes of cup or bell-shaped flowers, usually in shades of pink, and each with two short spurs
Name Status: Accepted

How to Grow

Cultivation

Grow in fertile, moist but well-drained soil in full sun or partial shade. Water in dry periods. Provide protection from frosts.

Propagation

Propagate by softwood cuttings in spring, or semi-ripe cuttings in summer.

Suggested planting locations and garden types

City and courtyard gardens
Cottage and informal garden
Patio and container plants
Bedding
Flower borders and beds
Wall side borders

Pruning

No pruning required. Cut back old stems to ground level in spring.

Pests

May be susceptible to slugs and snails

Diseases

Generally disease-free