Hardy geranium

Geranium 'Rozanne'

Photo/Illustration: 
Michelle Gervais
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Hardy geranium (Geranium 'Rozanne')
jer-AY-nee-um
Genus:  Geranium
The large blooms of this perennial are a spectacular violet-blue with a white throat and darker venation on plants 1 to 2 feet tall and wide. The attractive foliage weaves itself through neighboring plants. Grow in borders, containers, or rock or cottage gardens. 'Rozanne' is most effective en masse. 
Noteworthy Characteristics:  A full season of blue-violet blossoms that seem to glow.
Care:  Site in full sun or partial shade. Tolerant of most well-drained soils, but prefers moderate fertility and a moist soil.
Propagation:  Divide in spring or fall.
Problems:  Hardy geraniums are prone to mildews, bacterial blight, gray mold, and leaf spots. Also watch out for leaf miner and slugs.

Overview

Height
1 ft. to 3 ft.
Spread
1 ft. to 3 ft.
Growth Habit
Clumps,
Spreads
Growth Pace
Moderate Grower
Light
Full Sun to Part Shade
Moisture
Medium Moisture
Maintenance
Low
Characteristics
Attracts Butterflies,
Showy Flowers
Bloom Time
Early Summer,
Late Spring,
Spring,
Summer
Flower Color
Purple/Lavender Flower
Uses
Beds and Borders,
Ground Covers
Style
Cottage Garden
Seasonal Interest
Summer Interest
Type
Perennials

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