Schizanthus pinnatus

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Annual Biennial

Upright annual to 50cm tall, with fern-like light-green leaves to 12cm long and tubular flowers of white, yelllow, pink, purple or red to 8cm across with violet markings, streaked and spotted in contrasting colours, and produced from spring to autumn

Position

Full sun

Soil Types

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

Position

Full sun
Aspect
South–facing or West–facing or East–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)
H1C

Colour & Scent

Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Solanaceae
Native to GB/Ireland
No
Foliage
Deciduous
Habit
Clump forming
Genus
Schizanthus are showly annuals with pinnately dissected leaves and terminal clusters of orchid-like, 2-lipped flowers in a wide range of colours and often with a contrasting eye, from spring to autumn
Name Status
Unresolved

How to Grow

Cultivation

Under glass, grow in peat-free, loam-based potting compost in full light with shade from hot sun, water moderately and apply a high-potassium liquid fertiliser every 2 weeks. Outdoors during summer, grow in fertile moist but well-drained soil in full sun

Propagation

Propagate from seed in mid-spring for summer to autumn flowering plants or propagate in late summer for winter-flowering container plants under glass

Suggested planting locations and garden types

  • City and courtyard gardens
  • Cottage and informal garden
  • Patio and container plants
  • Bedding
  • Cut flowers
  • Flower borders and beds
  • Conservatory and greenhouse

Pruning

Pinch out young tips to promote bushy growth and cut back after flowering; flowering stems may need supporting

Pests

May be susceptible to aphids under glass

Diseases

Generally disease-free