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A picture of a Bonsai Spurflower

Bonsai Spurflower

Plectranthus ernstii

Full Shade
Easy care
Moderate watering
Tender

H5-H1c

RHS hardiness

-15°C

Minimum temperature

Expected size

Height
Spread

30cm

Max

30cm

10cm

Min

10cm

Flowering

  • spring
  • summer
  • autumn
  • winter

This plant has a mild fragrance

More images

A photo of Bonsai Spurflower
A photo of Bonsai Spurflower
A photo of Bonsai Spurflower
A photo of Bonsai Spurflower
A photo of Bonsai Spurflower

Overview

Plectranthus ernstii or bonsai spurflower is a slow growing, erect, semi-succulent perennial with swollen stems and a compact habit that resembles a bonsai, ideal for pot plants and rockeries. It is pleasantly aromatic, herbaceous and grows up to 25 cm tall, branching from the base. The stems are greyish, jointed and swollen, and become brown and potato-like with age. The leaves are aromatic and semi-succulent, ovate to broadly ovate to semi-triangular, with pronounced rounded marginal teeth. The upper-surface is sparsely covered in short fine soft hairs, and the under-surface is covered in minute hairs and pale to reddish brown gland-dots. The leaves turn sometimes rose pink during cooler autumn nights.

Common problems

Problem free

    Harvesting

    Not usually harvested

    Propagation

    Cuttings

    Take 10-15cm cuttings and root in well-draining sandy soil.

    Seed

    Sow seed in Spring and Summer. Germination time is about 21 days.

    Special Features

    Drought resistant

    Indoor plant

    Pot plant

    Attractive flowers

    Uses

    Ornamental

    Makes interesting bonsai shapes!