Edging Lobelia, Annual Lobelia, Trailing Lobelia
Lobelia erinus 'Crystal Palace'

Family: Campanulaceae (kam-pan-yew-LAY-see-ee) (Info)
Genus: Lobelia (low-BEE-lee-a) (Info)
Species: erinus (EAR-rin-us) (Info)
Cultivar: Crystal Palace
Additional cultivar information:(Fuseable series, aka Blue Brothers Crystal Palace)




6-12 in. (15-30 cm)


6-9 in. (15-22 cm)


Not Applicable

Sun Exposure:

Full Sun

Sun to Partial Shade

Light Shade


All parts of plant are poisonous if ingested

Bloom Color:

Dark Blue

Bloom Time:

Late Spring/Early Summer

Mid Summer



Other details:

Average Water Needs; Water regularly; do not overwater

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

Provides winter interest

Suitable for growing in containers

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 seed; sow indoors before last frost

From seed; direct sow after last frost

From seed; germinate in a damp paper towel

From seed; germinate in vitro in gelatin, agar or other medium

Seed Collecting:

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

Properly cleaned, seed can be successfully stored

N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed


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

Anchorage, Alaska

Cabot, Arkansas

Baywood-los Osos, California

Ben Lomond, California

Eureka, California

Knights Landing, California

Lawndale, California

Martinez, California

Mission Viejo, California

San Diego, California

Westlake Village, California

New Castle, Colorado

Keystone Heights, Florida

Elmhurst, Illinois

Hinsdale, Illinois

Winfield, Illinois

Cambridge, Massachusetts

Kirtland, New Mexico

Greenville, Ohio

Lansdowne, Pennsylvania

Carrollton, Texas

Odessa, Texas

Salt Lake City, Utah

Radford, Virginia

Kalama, Washington

show all

Gardeners' Notes:


On Apr 26, 2013, imagerep from Westlake Village, CA wrote:

Pretty flower BUT this plant will eventually be in every square inch of your property in a few years. Spreads like a weed. Unless that is what you want, be careful. also in every crevice, including cracks in concrete/hardscape. Extremely invasive.


On May 25, 2006, 44anne from Odessa, TX wrote:

I consider this lovely blue trailing flower a staple for any
container garden. It also does well in a border if it gets
some afternoon shade. In this (hot & dry) climate plenty
of water is a must. All the shades of blue I have seen it
in are just beautiful; "crystal palace" is my favorite.