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

Lobelia erinus

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)



Foliage Color:

Unknown - Tell us

Bloom Characteristics:

Unknown - Tell us

Water Requirements:

Average Water Needs; Water regularly; do not overwater

Where to Grow:

Suitable for growing in containers


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



Provides winter interest

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 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

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

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 Aug 3, 2015, Hayesy from Sydney
Australia wrote:

Favourite plant in my garden! I have planted 60 of these from mega punnets around the edge of my front garden. The deep blue/purple flowers are very pretty, cascading over a low blue stone wall I built. Certainly gets the neighbours looking with admiration :)


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.