Floss Flower

Ageratum houstonianum

Floss Flower - Ageratum houstonianum

Common Name: Floss Flower
Genus: Ageratum
Species: houstonianum

The ancient Greek translation of Ageratum refres to how the flowers keep their fresh appearance for a long period of time and rarely look spent.

Category: Annuals & Biennials
Growth Rate: Average
Features: Good for wildlife, Suitable for growing in containers, Long flowering period

Hardiness: Half-HardyHeight: 0.25 m (25 cm)
Sun/Shade: Full sunSpread: 0.25 m (25 cm)

Foliage Type: DeciduousFlower Colour: Blue, Purple, Pink, White
Foliage Colour: GreenFlowering Period: June to September

Soil Type: Normal/Loam
Soil Moisture: Moist, but well drained

There are many cultivars of Ageratum houstonianum.

 These compact half-hardy annuals usually have blue or violet-blue pom-pom like flowers throughout summer and into early autumn. There are also white and pink cultivars of Ageratum houstonianum.

 Regular feeding and watering in hot summers, and regular dead-heading help to prolong the flowering period of these plants. The flowers are attractive to butterflies, making cultivars of Ageratum houstonianum suitable for a wildlife garden. These plants are particularly useful for edging formal bedding schemes.