Tall Blue Planet ageratum
Ageratum houstonianum 'Tall Blue Planet'
USDA zones2 to 11
SunHandles full sun to partial sun
WaterHandles moderate to moist soil
Size2 to 2.5 feet tall
- Growth rate
- Moderate
- Bloom season
- Summer, autumn
- Bloom color
- Blue
- Soil types
- Sand, loam, clay, chalk
- Soil pH
- Acid, alkaline, neutral
Garden uses
Attracts
Notes
'Tall Blue Planet' ageratum (Ageratum houstonianum 'Tall Blue Planet') is an annual for borders, cut flowers, pollinator gardens, and containers. It is not cold-hardy and will not survive freezing temperatures. This plant likes full or part sun and average to moist soil of most types. Blue flowers bloom from early to late summer and draw butterflies and bees. Deer and rabbits usually look elsewhere for a meal. The tall, upright stems are sturdy and reach 24 to 30 inches.
Pairs well with Neon calendula, Garden balsam, and Red fescue.