Ageratum houstonianum 'Blue Horizon'
Ageratum houstanianum 'Blue Horizon'Ageratum houstanianum 'Blue Horizon'

Surprisingly long blooming – late Spring to Winter here at the nursery – I love this old fashioned 30” TALL “Floss Flower” for its rich, fluffy (pettable!) lavender flower clusters to 4” across & how nice it looks in the garden, its sturdy branching stems so well clothed in attractive emerald green heart-shaped leaves. So EASY to grow, it’s always sending up bunches of new blooming stems, especially when deadheaded. Plant with Nicotiana alata ‘Lime Green’ & Viola ‘Etain’ for a super pretty vignette! Butterflies love it, makes a great cut flower & is wonderful in a container! Rich, well drained soil. To 1.5’ wide.



AM Sun/Shade
Avg. Water

Short-lived perennial
USDA Zones 9-10

Annual elsewhere