Himalayan Geranium, Lilac Cranesbill
Geranium 'Birch Double'

Family: Geraniaceae (jer-ay-nee-AY-see-ee) (Info)
Genus: Geranium (jer-AY-nee-um) (Info)
Cultivar: Birch Double
Additional cultivar information:(aka Plenum)
Synonym:Geranium himalayense
» View all varieties of Hardy Geraniums

Category:

Perennials

Foliage Color:

Unknown - Tell us

Bloom Characteristics:

This plant is attractive to bees, butterflies and/or birds

Water Requirements:

Average Water Needs; Water regularly; do not overwater

Where to Grow:

Unknown - Tell us

Height:

12-18 in. (30-45 cm)

18-24 in. (45-60 cm)

Spacing:

18-24 in. (45-60 cm)

24-36 in. (60-90 cm)

Hardiness:

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)

Sun Exposure:

Sun to Partial Shade

Danger:

N/A

Bloom Color:

Violet/Lavender

Bloom Time:

Late Spring/Early Summer

Mid Summer

Late Summer/Early Fall

Mid Fall

Foliage:

Grown for foliage

Herbaceous

Good Fall Color

This plant is resistant to deer

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 herbaceous stem cuttings

From seed; direct sow outdoors in fall

From seed; winter sow in vented containers, coldframe or unheated greenhouse

From seed; stratify if sowing indoors

Seed Collecting:

Bag seedheads to capture ripening seed

Allow pods to dry on plant; break open to collect seeds

Regional

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

Freehold, New Jersey

Pembina, North Dakota

Custer, South Dakota

Lexington, Virginia

Radford, Virginia

Gardeners' Notes:

1
positive
0
neutrals
0
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RatingContent
Positive

On Oct 1, 2005, bonniewong from edmonton
Canada wrote:

This is one of my favorite hardy geraniums, beautiful sterile purple double flowers, spreads slowly by underground rhizomes. This is perfect for the front of the border, it keeps it's shape with no flopping over. A beautiful cranesbill.