Plectranthus zuluensis

RHS Plant Profile

Zulu spurflower

Synonyms

Plectranthus zuluensis light-leaved

Conservatory Greenhouse Bedding

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An erect or sprawling frost-tender plant to 1m tall and wide with ovate, coarsely-toothed, textured, lime-green leaves. Spikes of blue to pale mauve, tubular, spurred flowers are borne on dark purple stems above the foliage from late spring into summer

Position

Full shade, Partial shade

Soil Types

Loam, Sand

Max Height

0.5-1 metres

Max Spread

0.5-1 metres

Size

Time to Maturity: 2–5 years
Max Spread: 0.5-1 metres
Max Height: 0.5-1 metres

Growing Conditions

Loam Sand

Moisture: Moist but well–drained or Well–drained
pH: Acid or Alkaline or Neutral

Position

Full shade Partial shade

Aspect: South–facing or North–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): H2

Colour & Scent

Fragrance Foliage

Season	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family: Lamiaceae
Native to GB/Ireland: No
Foliage: Evergreen
Habit: Bushy
Genus: Plectranthus can be annuals, evergreen perennials or shrubs, with opposite, ovate or heart-shaped, sometimes fleshy leaves, and 2-lipped, tubular flowers borne in whorls forming spikes or panicles
Name Status: Correct
Plant Range: Southern Africa

How to Grow

Cultivation

Grows well in partial shade in a fertile, well-drained soil; plant outside after risk of frost has passed

Propagation

Propagate by seed or by cuttings taken in summer

Suggested planting locations and garden types

Patio and container plants
Sub-tropical
Ground cover

Pruning

Deadhead spent racemes to promote flowering; trim back after flowering or in spring to promote bushy growth

Pests

Generally pest-free

Diseases

Generally disease-free