Geranium, Hardy Geranium, Hedgerow Cranesbill 'Bill Wallis'

Geranium pyrenaicum

Family: Geraniaceae (jer-ay-nee-AY-see-ee) (Info)
Genus: Geranium (jer-AY-nee-um) (Info)
Species: pyrenaicum (py-ren-AY-kum) (Info)
Cultivar: Bill Wallis
» View all varieties of Hardy Geraniums


Alpines and Rock Gardens


Water Requirements:

Drought-tolerant; suitable for xeriscaping

Average Water Needs; Water regularly; do not overwater

Sun Exposure:

Full Sun

Sun to Partial Shade



Foliage Color:

Unknown - Tell us


12-18 in. (30-45 cm)


18-24 in. (45-60 cm)


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)

Where to Grow:

Unknown - Tell us



Bloom Color:


Medium Purple

Bloom Characteristics:

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

Bloom Size:

Unknown - Tell us

Bloom Time:

Mid Summer

Late Summer/Early Fall

Other details:

Unknown - Tell us

Soil pH requirements:

6.1 to 6.5 (mildly acidic)

6.6 to 7.5 (neutral)

7.6 to 7.8 (mildly alkaline)

Patent Information:

Unknown - Tell us

Propagation Methods:

By dividing the rootball

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

From seed; sow indoors before last frost

From seed; direct sow after last frost

Self-sows freely; deadhead if you do not want volunteer seedlings next season

Seed Collecting:

Bag seedheads to capture ripening seed

Allow seedheads to dry on plants; remove and collect seeds


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

, (2 reports)

Belmont, California

Castro Valley, California

Fairfield, California

Modesto, California

Pleasanton, California

Richmond, California

Rohnert Park, California

San Jose, California (2 reports)

San Marcos, California

Santa Clara, California

Stockton, California

Durham, North Carolina

Royersford, Pennsylvania

Seattle, Washington

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Gardeners' Notes:


On Jul 29, 2017, 00264167 from herne bay,
United Kingdom wrote:

I have grown this for a couple of years, although i read it is long flowering the reality is it flowers in spring for about 3 weeks then goes long and straggly and needs cutting back. Sporadic and slight reblooming occurs but not to the extent that it could be called another flush, so i cant say it can be called long blooming, however i dont find this a problem as its an intertwining plant rather than a big space filler.

On the plus side, it does grow in hot, dry locations in the uk (aswell as normal geranium conditions). It self-seeds alot and spreads itself throughout the border for a few meters around the parent plant. Spare plants are easy to pull out but not that easy to identify from seedling of other geraniums.
Although its not a really long bloomer, i thin... read more


On Apr 7, 2010, imapigeon from Gilroy (Sunset Z14), CA (Zone 9a) wrote:

Early bloomer for me (April). I planted it in full sun Jan '09, and it died back completely in the summer heat. Thought I might have lost it, but it's come back strong this spring. I moved some to another spot that has more shade. Love the color, and I think I could be happy with it reseeding!


On Feb 2, 2009, Calif_Sue from Northern California,
United States (Zone 9a) wrote:

I agree with the poster below "Reseeds ENTHUSIASTICALLY!"
I bought one 4" plant several years ago from Annie's Annuals, planted it in the backyard and now have them pop up readily in both front and back. It grows just about everywhere, sun and shade, rich and poor soil, high and low water. As Annie's puts it "prolific, indestructible, & everblooming!". It intertwines beautifully with all kinds of plants and they bloom off and on almost year round here. When one plant is done blooming, I either pull it or shear it completely back and it regrows quickly.


On Apr 15, 2003, clendnn from Pleasanton, CA wrote:

Pleasanton, CA (hot summers!): Stuck it in a 14" pot in basic, hardware store potting soil, pretty much ignored it beyond watering, and left it in near-full sun. It leafed out beautifully, exploded into glorious, purple bloom, wintered over with no problem, and several seedlings appeared nearby this spring - in a sunny gravel bed over solid clay soil! Pretty, easy, and tolerant of moderate neglect.

Further note after another year: Reseeds ENTHUSIASTICALLY!

Further note after several days of 100+ degree heat in August: One of the volunteers (well-established in the gravel bed from last year - I didn't have the heart to pull it), living on nothing but occasional drainage from a nearby raised bed, is quite alive and apparently none the worse for wear.