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PlantFiles: Geranium
Geranium rosthornii

Family: Geraniaceae (jer-ay-nee-AY-see-ee) (Info)
Genus: Geranium (jer-AY-nee-um) (Info)
Species: rosthornii (ros-THORN-ee-eye) (Info)

Synonym:Geranium henryi
Synonym:Geranium yuexiense

» View all varieties of Hardy Geraniums

3 members have or want this plant for trade.


12-18 in. (30-45 cm)

15-18 in. (38-45 cm)
18-24 in. (45-60 cm)
24-36 in. (60-90 cm)

Unknown - Tell us

Sun Exposure:
Full Sun
Sun to Partial Shade

Unknown - Tell us

Bloom Color:
Magenta (Pink-Purple)

Bloom Time:
Late Spring/Early Summer
Mid Summer
Late Summer/Early Fall

Grown for foliage

Other details:
Unknown - Tell us

Soil pH requirements:
Unknown - Tell us

Patent Information:
Unknown - Tell us

Propagation Methods:
From herbaceous stem cuttings

Seed Collecting:
Unknown - Tell us

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to view:

By DaveH
Thumbnail #1 of Geranium rosthornii by DaveH

By DaveH
Thumbnail #2 of Geranium rosthornii by DaveH


1 positive
No neutrals
No negatives

Gardeners' Notes:

Positive Oberon46 On Jul 7, 2010, Oberon46 from (Mary) Anchorage, AK (Zone 5b) wrote:

Grows to be about 30" tall and at lest 30" around. Needs support to about one third height. I use a green fencing material that has 2" squares and it disappears as the 'bush' grows. Flowers prolifically, then tends to collapse if not supported. Vibrant violet flowers.


This plant has been said to grow in the following regions:

Anchorage, Alaska
San Francisco, California
Sterling Heights, Michigan
Walloon Lake, Michigan
Raleigh, North Carolina
Madison, Ohio

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