Photo by Melody
If you're looking for the today's articles, look no further than here!

PlantFiles: Lithodora
Lithodora diffusa 'Star'

Family: Boraginaceae
Genus: Lithodora (lith-oh-DOR-uh) (Info)
Species: diffusa (dy-FEW-sa) (Info)
Cultivar: Star
Additional cultivar information: (PP10096; aka Blue Star)

Synonym:Lithospermum diffusum

5 members have or want this plant for trade.

View this plant in a garden

Alpines and Rock Gardens

under 6 in. (15 cm)

12-15 in. (30-38 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)

Sun Exposure:
Full Sun
Sun to Partial Shade

Handling plant may cause skin irritation or allergic reaction

Bloom Color:
Medium Blue

Bloom Time:
Late Spring/Early Summer
Mid Summer
Blooms repeatedly


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:
Unknown - Tell us

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

Click thumbnail
to view:

By ecrane3
Thumbnail #1 of Lithodora diffusa by ecrane3

By feelinmymonkie
Thumbnail #2 of Lithodora diffusa by feelinmymonkie

By tikijenn
Thumbnail #3 of Lithodora diffusa by tikijenn


1 positive
No neutrals
No negatives

Gardeners' Notes:

Positive isom On Mar 27, 2006, isom from Mission BC
Canada (Zone 8b) wrote:

The flowers of lithodora 'Star' (I've seen this cultivar also called 'Blue Star') somehow seem more bright & noticeable from the all-blue flowers seen on regular lithodora. Perhaps the contrast of the white edge makes them stand out more.

I quite like this plant for its blue flowers. Although the flowers are small, the profusion of blooms is worth growing this. The plant will spread out over time covering an area about 4 feet wide. Maybe further in time? I made the mistake of planting mine where a fir tree competes for moisture so I need to water regularly. Normally, one wouldn't have to once established.

I layered mine last fall for increase & plan to plant them where they won't have to compete for moisture & will receive more sun. I've seen other lithodoras still blooming off & on, though not with the full flush of spring. right into late fall days. I'm hoping mine will too in their new surroundings.


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

Richmond, California
Sacramento, California
Thomaston, Georgia
Clover, South Carolina

We recommend Firefox
Overwhelmed? There's a lot to see here. Try starting at our homepage.

[ Home | About | Advertise | Media Kit | Mission | Featured Companies | Submit an Article | Terms of Use | Tour | Rules | Privacy Policy | Contact Us ]

Back to the top

Copyright © 2000-2015 Dave's Garden, an Internet Brands company. All Rights Reserved.

Hope for America