Photo by Melody

PlantFiles: Great Blue Lobelia
Lobelia siphilitica 'White Candles'

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Family: Campanulaceae (kam-pan-yew-LAY-see-ee) (Info)
Genus: Lobelia (low-BEE-lee-a) (Info)
Species: siphilitica (sigh-fy-LY-tih-kuh) (Info)
Cultivar: White Candles

2 members have or want this plant for trade.

Category:
Perennials

Height:
12-18 in. (30-45 cm)
18-24 in. (45-60 cm)

Spacing:
12-15 in. (30-38 cm)

Hardiness:
USDA Zone 3a: to -39.9 C (-40 F)
USDA Zone 3b: to -37.2 C (-35 F)
USDA Zone 4a: to -34.4 C (-30 F)
USDA Zone 4b: to -31.6 C (-25 F)
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)
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)

Sun Exposure:
Light Shade

Danger:
All parts of plant are poisonous if ingested

Bloom Color:
White/Near White

Bloom Time:
Late Summer/Early Fall

Foliage:
Herbaceous
Smooth-Textured

Other details:
Average Water Needs; Water regularly; do not overwater

Soil pH requirements:
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)

Patent Information:
Unknown - Tell us

Propagation Methods:
By dividing the rootball
From seed; stratify if sowing indoors
From seed; sow indoors before last frost

Seed Collecting:
Allow pods to dry on plant; break open to collect seeds
N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed

Click thumbnail
to view:

By saya
Thumbnail #1 of Lobelia siphilitica by saya

By rcn48
Thumbnail #2 of Lobelia siphilitica by rcn48

Profile:

2 positives
No neutrals
No negatives

Gardeners' Notes:

RatingAuthorContent
Positive rcn48 On Aug 21, 2005, rcn48 from Lexington, VA (Zone 6a) wrote:

I was prompted to post a picture of the true 'White Candles' after seeing the picture posted by saya. I believe the first picture is actually Lobelia siphilitica 'Alba', a white form of Great Blue Lobelia which we also have growing in our gardens. 'White Candles' is a cultivar offered in the past by Terra Nova Nurseries and is unique in that it has a dwarf habit with huge congested heads of white flowers. I have reported the error with hopes of correcting the confusion.

Positive AuntMarcie On Aug 18, 2005, AuntMarcie from Homerville, OH wrote:

A year ago, my husband and I undertook the restoration of 2 acres of old pasture on our property. Growing wild under light shade was a pure white specimen of L. siphilitica. I now have it growing in several garden beds and have since located at least 5 areas in the original meadow where it is currently thriving. Great blue lobelia grows abundantly in our township in Medina County (northeast Ohio). The soil around these parts is heavy clay and poorly drained....must be what this plant prefers. Flowers of this "alba" are pure snowy-white. The plant is robust. I have a specimen in full shade that is about 2 1/2 feet tall with several offshoots.

Regional...

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

Lake Zurich, Illinois
Homerville, Ohio
Lexington, Virginia



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