Home / Guides / Plant Files / Geraniaceae

Geranium, Cranesbill, Hardy Geranium 'A.T. Johnson'

Geraniumx oxonianum

Upload Image Print Article
Upload Image Print Article
Family
Geraniaceae (jer-ay-nee-AY-see-ee)
Info
Genus
Geranium (jer-AY-nee-um)
Info
Species
x oxonianum (oks-oh-nee-AH-num)
Info
Synonym
Sun Exposure
Full Sun
Sun to Partial Shade
Foliage
Evergreen
This plant is resistant to deer
Shiny/Glossy
Succulent
Height
18-24 in. (45-60 cm)
Spacing
18-24 in. (45-60 cm)
Hardiness
USDA Zone 3b: to -37.2 °C (-35 °F)
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
Pink
Silver/Gray
Bloom Time
Late Spring/Early Summer
Mid Summer
Late Summer/Early Fall
Other Details
Category
Groundcovers
Perennials
Water Requirements
Average Water Needs; Water regularly; do not overwater
Requires consistently moist soil; do not let dry out between waterings
Foliage Color
Blue-Green
Where to Grow

Unknown - Tell us

Bloom Characteristics
This plant is attractive to bees, butterflies and/or birds
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
By dividing rhizomes, tubers, corms or bulbs (including offsets)
From seed; germinate in a damp paper towel
Self-sows freely; deadhead if you do not want volunteer seedlings next season
Seed Collecting
Bag seedheads to capture ripening seed
Regional

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

Cornwall Bridge, Connecticut

Southampton, New York

Kalama, Washington

View all varieties of Hardy Geraniums
View this plant in a garden
One member has or wants this plant for trade

Featured Videos

Gardener's Notes:

Post Comment
0
positive
1
neutral
0
negative
Sort By:
Post Comment
Sort By:
C
C
coriaceous
ROSLINDALE, MA | October 2014 | neutral

Vigorous and adaptable. Clump-forming, to 18" tall. May reach 18"-3' across. May be evergreen in Z8.

Long-blooming and flo...Read More

Popular Plants
SEE ALL
Iris
Peppers
Hydrangeas
Hostas
Contribute to Dave’s Garden
Add a New Plant to the List
Featured
BUG FILES
Pink-shaded Fern Moth
(Callopistria mollissima)
BIRD FILES
Turkey Vulture
(Cathartes aura)
Quick Links
View All Families
View All Genera
View All Species
Freeze/Frost Dates
PlantFiles FAQ
Plants with no Photos
Contribute to Dave’s Garden
Add a New Plant to the List
Featured
BUG FILES
Pink-shaded Fern Moth
(Callopistria mollissima)
BIRD FILES
Turkey Vulture
(Cathartes aura)