Alstroemeria River Valley ('Tessumriver') (Summer Paradise - Valley Series)

RHS Plant Profile
Peruvian lily [River Valley]

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Synonyms

Alstroemeria 'Tessumriver'
Alstroemeria 'River Valley'

Plants for pollinators
Herbaceous Perennial
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A compact, clump-forming perennial to around 35cm high, with lance-shaped, dark green leaves finely edged with cream. Funnel-shaped deep pink flowers, with dark red-brown flecks and a cream-coloured blotch at the base of the upper petals, are borne over a long period from early summer into autumn

Position

Full sun, Partial shade

Soil Types

Chalk, Loam, Sand

Max Height

0.1-0.5 metres

Max Spread

0.1-0.5 metres

Size

Time to Maturity
2–5 years
Max Spread
0.1-0.5 metres
Max Height
0.1-0.5 metres

Growing Conditions

Chalk Loam Sand
Moisture
Moist but 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
Alstroemeriaceae
Native to GB/Ireland
No
Foliage
Deciduous
Habit
Bushy, Clump forming
Potentially harmful
Skin allergen. Wear gloves and other protective equipment when handling
Genus
Alstroemeria are fleshy rooted herbaceous perennials forming spreading clumps of erect stems bearing narrowly lance-shaped leaves, with umbels of showy funnel-shaped flowers in summer
Name Status
Trade

How to Grow

Cultivation

Thrives in fertile, moist but well-drained soil, in a sheltered position in sun or partial shade. Ideal for container growing; may need winter protection. Will not tolerate waterlogging. See alstroemeria cultivation for further information

Propagation

Propagate by division, in autumn or very early spring

Suggested planting locations and garden types

  • City and courtyard gardens
  • Cottage and informal garden
  • Patio and container plants
  • Wildlife gardens
  • Cut flowers
  • Flower borders and beds
  • Underplanting of roses and shrubs

Pruning

Pull up spent flowered stems, leaving tubers in ground

Pests

May be susceptible to slugs and snails

Diseases

Generally disease-free but may be susceptible to a virus