Calamintha nepeta subsp. glandulosa 'White Cloud'

RHS Plant Profile

lesser calamint 'White Cloud'

Synonyms

Calamintha grandiflora 'White Cloud'

Herbaceous Perennial

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A compact, bushy perennial, to 30cm tall, forming a neat mound of aromatic, ovate grey-green leaves. Loose clusters of tiny, up to 1cm, tubular, two-lipped white flowers appear from June into early 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: 2–5 years
Max Spread: 0.1-0.5 metres
Max Height: 0.1-0.5 metres

Growing Conditions

Chalk Loam Sand

Moisture: Well–drained
pH: Alkaline or Neutral

Position

Full sun

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): H5
Drought Resistance: Yes

Colour & Scent

Fragrance Foliage

Season	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family: Lamiaceae
Native to GB/Ireland: No
Foliage: Semi evergreen
Habit: Bushy
Genus: Calamintha are pleasantly aromatic perennials with ovate leaves and loose clusters of small, 2-lipped flowers in summer and autumn in the axils of the upper leaves
Name Status: Accepted

How to Grow

Cultivation

Prefers a well-drained soil and flowers best when grown in a warm, open position in full sun

Propagation

Propagate by seed or by division

Suggested planting locations and garden types

City and courtyard gardens
Cottage and informal garden
Mediterranean climate plants
Wildlife gardens
Flower borders and beds
Garden edging

Pruning

Cut back in autumn

Pests

Generally pest-free

Diseases

May be susceptible to powdery mildews