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Category: Alpines and Rock Gardens Groundcovers Perennials
Height: 6-12 in. (15-30 cm)
Spacing: 12-15 in. (30-38 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)
Sun Exposure: Full Sun Sun to Partial Shade
Danger: Handling plant may cause skin irritation or allergic reaction
Bloom Color: Medium Blue Dark Blue
Bloom Time: Late Spring/Early Summer Mid Summer Blooms repeatedly
Foliage: Evergreen Velvet/Fuzzy-Textured
Other details: Drought-tolerant; suitable for xeriscaping Average Water Needs; Water regularly; do not overwater
Soil pH requirements: 5.6 to 6.0 (acidic) 6.1 to 6.5 (mildly acidic)
Patent Information: Non-patented
Propagation Methods: From softwood cuttings From seed; sow indoors before last frost
Seed Collecting: N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed
On May 21, 2012, bendipa from London United Kingdom wrote:
I have been growing this alpine in a container in John Innes 2 compost for the first time this year. It produced a flush of beautiful blue gentian coloured flowers. This flush is just finishing and the leaves which were a healthy looking green a few weeks ago have now turned black and died. There are a mixture of new green shoots and flowers arising in a few places among the dead leaves (see photo link below ) so I know the plant is still alive (so far). But should the old leaves that came with the first flush, have died so suddenly, or is that normal behaviour for this plant? Also it's described in your growing conditions as being 'drought resistant', whereas a member posted that on no occasion should this plant be exposed to drought.
On May 2, 2012, rgoddard13 from Tega Cay, SC wrote:
I neglected my garden last year and this thing survived a mild drought in clay soil. Despite this treatment it rewarded me with the brightest, most vibrant flowers of all my plants.
After a little water and fertilizer it went crazy yielding flowers for longer. I am in season 3 and have yet to experience the doughnut in the middle.
On Aug 19, 2010, Marjaliisa from Sonora, CA wrote:
Love! the color. Folage and fabulous flower color. Problem with the center turning black w/the edges continuing to be green and flower. Too much water? When sheared back, sends up new growth and looks like a new plant. They are planted in not so great amended (mostly decomposed granit), but with good drainage. Any ideas to offset the dieback in the center?
On Nov 18, 2009, bonehead from Cedarhome, WA (Zone 8b) wrote:
This plant is a gorgeous true blue and I love it in full bloom, but unfortunatly I don't seem to have much luck with it. It often gets leggy and woody, sometimes whole sections just turn black and die while the rest limps along. I've planted it probably 4 times or more. My latest planting is doing pretty good, maybe I've found the right combo of site/drainage/etc. If so, I'll upgrade to a positive experience.
On Mar 7, 2009, skttlsno1 from Loris, SC (Zone 8a) wrote:
I've found that since I live in the South, they do best with only morning sun. They can't tolerate the full sun down here. Beautiful as a groundcover around one of my oak trees.
On Apr 27, 2008, WombatFamily from Brenham, TX (Zone 8b) wrote:
Had to try a little with this plant. Terrible in a pot. Dying in a sunny spot. Ones at the back of the garden that get some sun but are mostly shaded by other plants are doing very well.
On Mar 29, 2007, ineedacupoftea from Denver, CO wrote:
This plant tolerates absolutely no drought. That is how I killed mine. I do not mean prolonged drought, but conditions that are fairly normal in many gardens that are not damaging if not beneficial to many plants. It is, however, quite pretty and woudl be quite at home in other gardens around the country.
I'm not terribly happy with this plant...I put two in pots next to my fountain a year ago and they have looked dead/woody/leggy ever since. Now one has bloomed and looks good, but the other looks bad. Maybe they are best as a groundcover?
On Jun 30, 2006, elaine_h from Conyers, GA (Zone 7b) wrote:
Planted this last summer. It survived our mild winter (zone 7b)at the edge of the cone flower bed in partial sun and is doing very well this summer but getting somewhat leggy. I will attempt to prune back the center a bit this fall. I have enjoyed this plant for it low growing spreading color. Looks good under blooming perennials.
On Oct 13, 2002, PotEmUp from Fremont, CA (Zone 9a) wrote:
Starts off nicely as a ground cover, but becomes somewhat woody as it ages.
Regional...
This plant has been said to grow in the following regions:
Centre, Alabama Chowchilla, California East Sonora, California Fairfield, California Knights Landing, California Merced, California Vallejo, California East Haddam, Connecticut Lakeview Estates, Georgia South China, Maine Beverly, Massachusetts Elizabeth City, North Carolina Raleigh, North Carolina Cottage Grove, Oregon East Norriton, Pennsylvania Clover, South Carolina Conway, South Carolina Loris, South Carolina Tega Cay, South Carolina Knoxville, Tennessee White Settlement, Texas Arlington, Virginia Locust Dale, Virginia Lake Goodwin, Washington Olympia, Washington Pullman, Washington
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