A picture of a Coulter-Bush

Coulter-Bush

Hymenolepis crithmifolia

Also known as

small-flowered athanasia

Photo by Genavee Rhodes (CC0)

Full Sun
Easy care
Light watering
Tender

H5-H1c

RHS hardiness

-15°C

Minimum temperature

Flowering

  • spring
  • summer
  • autumn
  • winter

More images of Coulter-Bush

A close up of a Hymenolepis crithmifolia plant
A yellow flowering Hymenolepis crithmifolia plant with green leaves
A Hymenolepis crithmifolia with green leaves
Some yellow Hymenolepis crithmifolia flowers in a field with a mountain in the background
Some yellow flowering Hymenolepis crithmifolia plants with green leaves

Coulter-Bush Overview

Hymenolepis crithmifolia is a herbaceous shrub species which originate from Southern Africa. It favours high altitude locations in the Greater Cape Floristic Region. Flowers are bright yellow, appearing from early to mid-summer. Typically growing to between 1.5-2.m tall, branching less and less with increasing height. One species, H. calva has a low-growing, branching habit, not usually exceeding 0.6m in height. These plants may be smooth or have star-shaped, white hairs across their surfaces, termed stellate hairs. Leaves are arranged alternately, they may be felted, mealy or smooth in texture. Leaves may be brown-gold, developing with age to greeny, grey-white colouration. Flowers are funnel-shaped, made up of many clustered, bright yellow blooms with 5 petals. They are arranged in structures called umbels. These are clusters which radiate from a central stem point, producing flowers on stalks of roughly equal length, to form a flattened or slightly rounded, horizontal surface of blooms. This species is part of the Royal Horticultural Society “Plants for Pollinators” initiative to showcase plants which support pollinator populations by providing ample amounts of nectar and/ or pollen. A great choice for encouraging pollinating insect wildlife into your garden!

Special features of Coulter-Bush

Attractive flowers

Attracts butterflies

Attracts bees