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Geranium Species, Armenian Cranesbill, Hardy Geranium

Geraniumpsilostemon

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Geranium psilostemon by booboo1410
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Family
Geraniaceae (jer-ay-nee-AY-see-ee)
Info
Genus
Geranium (jer-AY-nee-um)
Info
Species
psilostemon (sigh-loh-STEE-mon)
Info
Synonym
Geranium armenum
Geranium backhousianum
Sun Exposure
Full Sun
Sun to Partial Shade
Foliage
Herbaceous
Height
36-48 in. (90-120 cm)
Spacing
24-36 in. (60-90 cm)
Hardiness
USDA Zone 4a: to -34.4 °C (-30 °F)
USDA Zone 4b: to -31.6 °C (-25 °F)
USDA Zone 5a: to -28.8 °C (-20 °F)
USDA Zone 5b: to -26.1 °C (-15 °F)
USDA Zone 6a: to -23.3 °C (-10 °F)
USDA Zone 6b: to -20.5 °C (-5 °F)
USDA Zone 7a: to -17.7 °C (0 °F)
USDA Zone 7b: to -14.9 °C (5 °F)
USDA Zone 8a: to -12.2 °C (10 °F)
USDA Zone 8b: to -9.4 °C (15 °F)
USDA Zone 9a: to -6.6 °C (20 °F)
USDA Zone 9b: to -3.8 °C (25 °F)
Danger
N/A
Bloom Color
Magenta (pink-purple)
Dark Purple/Black
Bloom Time
Late Spring/Early Summer
Blooms repeatedly
Other Details
Category
Perennials
Water Requirements
Drought-tolerant; suitable for xeriscaping
Average Water Needs; Water regularly; do not overwater
Foliage Color

Unknown - Tell us

Where to Grow

Unknown - Tell us

Bloom Characteristics

Unknown - Tell us

Bloom Size

Unknown - Tell us

Other details

Unknown - Tell us

Soil pH requirements
5.6 to 6.0 (acidic)
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)
7.9 to 8.5 (alkaline)
Patent Information
Non-patented
Propagation Methods
By dividing the rootball
Seed Collecting

Unknown - Tell us

Regional

This plant is said to grow outdoors in the following regions:

Lexington, Massachusetts

Freehold, New Jersey

Ashville, Ohio

Newark, Ohio

Frisco, Texas

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coriaceous
ROSLINDALE, MA | October 2014 | neutral

In 1993, the Royal Horticultural Society granted this plant its coveted Award of Garden Merit.

In its 2004 evaluation of h...Read More

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