Tropaeolum majus 'Tip Top Scarlet' (Tip Top Alaska Series)

RHS Plant Profile
nasturtium 'Tip Top Scarlet'

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nasturtium 'Tip Top Scarlet' RHS
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Annual Biennial

A compact, bushy, trailing annual to around 30cm tall with rounded green leaves, mottled with cream. Masses of large, funnel-shaped scarlet-red flowers are produced freely from June through to September

Position

Full sun

Soil Types

Chalk, Loam, Sand

Size

Time to Maturity
1–2 years

Growing Conditions

Chalk Loam Sand
Moisture
Moist but well–drained or 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)
H3

Colour & Scent

Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Tropaeolaceae
Native to GB/Ireland
No
Foliage
Deciduous
Habit
Bushy, Trailing
Genus
Tropaeolum can be annuals or perennials, bushy, trailing or climbing by twining stems, with simple or palmately lobed leaves and showy funnel-shaped flowers with five long-clawed petals and often a spur
Name Status
Unresolved

How to Grow

Cultivation

Grow in poor, moist but well-drained soil in full sun

Propagation

Propagate by seed

Suggested planting locations and garden types

  • City and courtyard gardens
  • Cottage and informal garden
  • Patio and container plants
  • Wildlife gardens
  • Flower borders and beds
  • Garden edging

Pruning

Deadhead to prolong flowering

Pests

May be susceptible to blackfly (black aphid), caterpillars, flea beetles, slugs and glasshouse whitefly

Diseases

May be susceptible to virus diseases