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-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.
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