Geum 'Norwell Lemon Lamp'

RHS Plant Profile

avens 'Norwell Lemon Lamp'

Synonyms

Geum 'Norwell Yellow Lamp'
Geum 'Norwell Yellow'
Geum 'Norwell Lemon Yellow'

Herbaceous Perennial

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A slow-growing, spreading, clump-forming rhizomatous perennial to around 20cm in height, with basal rosettes of lobed and toothed green leaves. Single, nodding, pale yellow flowers with a pale green calyx appear in mid to late spring

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: 2–5 years
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
pH: Acid or Alkaline or Neutral

Position

Full sun Partial shade

Aspect: East–facing or 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): H7

Colour & Scent

Season	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family: Rosaceae
Native to GB/Ireland: No
Foliage: Deciduous
Habit: Clump forming
Genus: Geum are rhizomatous perennials, occasionally spreading by stolons, with a basal rosette of pinnately lobed leaves and saucer-shaped flowers in loose clusters
Name Status: Accepted

How to Grow

Cultivation

Grow in fertile, moist but well-drained soil in sun or partial shade. Avoid areas that are waterlogged over winter. Divide every three years or so to maintain vigour

Propagation

Propagate by division in autumn or spring

Suggested planting locations and garden types

Cottage and informal garden
Patio and container plants
Wildlife gardens
Flower borders and beds
Underplanting of roses and shrubs

Pruning

Deadhead to promote more blooms, and cut back old stems after flowering

Pests

May be susceptible to leaf miners and geum sawfly

Diseases

May be susceptible to powdery mildews