Photo by Melody

PlantFiles: Digger's Speedwell
Derwentia perfoliata

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Family: Plantaginaceae
Genus: Derwentia (der-WENT-ee-uh) (Info)
Species: perfoliata (per-foh-lee-AY-tuh) (Info)

One vendor has this plant for sale.

2 members have or want this plant for trade.

Category:
Alpines and Rock Gardens
Shrubs

Height:
18-24 in. (45-60 cm)

Spacing:
9-12 in. (22-30 cm)

Hardiness:
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)
USDA Zone 10a: to -1.1 C (30 F)
USDA Zone 10b: to 1.7 C (35 F)
USDA Zone 11: above 4.5 C (40 F)

Sun Exposure:
Sun to Partial Shade

Danger:
Unknown - Tell us

Bloom Color:
Blue-Violet

Bloom Time:
Late Summer/Early Fall

Foliage:
Blue-Green

Other details:
Drought-tolerant; suitable for xeriscaping

Soil pH requirements:
Unknown - Tell us

Patent Information:
Non-patented

Propagation Methods:
By dividing the rootball

Seed Collecting:
Unknown - Tell us

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to view:

By Happenstance
Thumbnail #1 of Derwentia perfoliata by Happenstance

By Happenstance
Thumbnail #2 of Derwentia perfoliata by Happenstance

By kennedyh
Thumbnail #3 of Derwentia perfoliata by kennedyh

By kennedyh
Thumbnail #4 of Derwentia perfoliata by kennedyh

By Happenstance
Thumbnail #5 of Derwentia perfoliata by Happenstance

By Calif_Sue
Thumbnail #6 of Derwentia perfoliata by Calif_Sue

By Calif_Sue
Thumbnail #7 of Derwentia perfoliata by Calif_Sue

There are a total of 15 photos.
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Profile:

3 positives
No neutrals
No negatives

Gardeners' Notes:

RatingAuthorContent
Positive fbgardener On Oct 2, 2007, fbgardener from Fort Bragg, CA wrote:

I am zone 9b, and I garden in very sandy acidic soil, (ph5.5 to 6.0). My speedwells are so happy and beautiful. I love them and I love the beautiful little blue flowers. Also, I live a mile from the Pacific Ocean, with frequent fog and high humidity and relatively cool temps, in the 60's, and all my diggers get at least a half day of sun.

Positive Happenstance On Sep 13, 2003, Happenstance from Northern California, CA wrote:

Loves the wind, lovely nodding flower heads, tolerates 9b heat well, fast growing shrub with tall blue/violet flower stalks.

Positive kennedyh On Sep 12, 2003, kennedyh from Churchill, Victoria
Australia (Zone 10a) wrote:

This lovely plant is an Australian native and I am interested to learn it is in cultivation in USA. It grows at high altitude in the wild, being very common beside the roads near Mt. Kosciusko in New South Wales (Australia's highest mountain).
It is quite common in cultivation in Australia, although I have not grown it myself. There is a vigorous plant in flower at the moment in the grounds of the University where I work.

Regional...

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

Clayton, California
Fairfield, California (2 reports)
Fort Bragg, California
Hesperia, California
Richmond, California
San Jose, California
Wilmington, Delaware
Elizabeth City, North Carolina
Seattle, Washington



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