Common Name: Floss Flower
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-Hardy||Height: 0.25 m (25 cm)|
|Sun/Shade: Full sun||Spread: 0.25 m (25 cm)|
|Foliage Type: Deciduous||Flower Colour: Blue, Purple, Pink, White|
|Foliage Colour: Green||Flowering 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.