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Plant details
A fast-growing, Mexican annual which forms a compact, mound and has a uniform growing habit. It has downy leaves and purple-blue, weather-resistant flower-heads on long, sturdy stems. The flowers are good for bedding and cutting and can be used in both fresh and dried displays.
Family: Asteraceae
Genus: Ageratum
Species: houstonianum
Cultivar: Blue Horizon
Plant type: Half-hardy annual
Flower colour: Blue
Foliage colour: Mid-green
Feature: Flowers
Sun exposure: Full sun
Soil: Well-drained/light, Clay/heavy, Acidic, Chalky/alkaline
Hardiness: Half hardy
Skill level: Beginner
Height: 45cm
Spread: 30cm
Time to plant seeds: February to April
Flowering period: July to September
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