Trachelium, Blue Lace Flower, Blue Throatwort 'Jemmy Royal Purple'

Tracheliumcaeruleum

Family
Campanulaceae (kam-pan-yew-LAY-see-ee)
Genus
Trachelium (trak-ELL-ee-um)
Species
caeruleum (see-ROO-lee-um)
Synonym
Sun Exposure
Full Sun
Sun to Partial Shade
Foliage
Evergreen
Smooth
Height
36-48 in. (90-120 cm)
Spacing
36-48 in. (90-120 cm)
Hardiness
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)
USDA Zone 10a: to -1.1 °C (30 °F)
USDA Zone 10b: to 1.7 °C (35 °F)
USDA Zone 11: above 4.5 °C (40 °F)
Bloom Color
Medium Purple
Bloom Time
Mid Summer
Mid Fall
Other Details
Category
Perennials
Water Requirements
Average Water Needs; Water regularly; do not overwater
Foliage Color
Where to Grow
Can be grown as an annual
Bloom Characteristics
This plant is attractive to bees, butterflies and/or birds
Bloom Size
Other details
Soil pH requirements
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)
7.9 to 8.5 (alkaline)
Patent Information
Propagation Methods
From softwood cuttings
From seed; sow indoors before last frost
From seed; direct sow after last frost
Seed Collecting
N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed
Regional

This plant is said to grow outdoors in the following regions:

San Leandro, California

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Gardener's Notes:

0
positive
1
neutral
0
negative
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San Leandro, CA (Zone 9b) | December 2007 | neutral

This colorful perennial is grown for the florist industry because the cut flowers last up to 2 weeks in water. It has 3 foot flower spik...Read More

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