Centaurea Species, Blessed Thistle, Holy Ghost Herb, Holy Thistle

Centaureabenedicta

Family
Asteraceae (ass-ter-AY-see-ee)
Genus
Centaurea (sen-TAR-ee-uh)
Species
benedicta (ben-uh-DICK-tuh)
Synonym
Cnicus benedictus
Sun Exposure
Full Sun
Foliage
Succulent
Height
12-18 in. (30-45 cm)
18-24 in. (45-60 cm)
24-36 in. (60-90 cm)
Spacing
12-15 in. (30-38 cm)
Hardiness
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)
Danger
N/A
Bloom Color
Bright Yellow
Bloom Time
Mid Summer
Late Summer/Early Fall
Other Details
Category
Herbs
Perennials
Water Requirements
Average Water Needs; Water regularly; do not overwater
Foliage Color
Where to Grow
Bloom Characteristics
Bloom Size
Other details
May be a noxious weed or invasive
Soil pH requirements
Patent Information
Non-patented
Propagation Methods
From seed; direct sow after last frost
Seed Collecting
Allow seedheads to dry on plants; remove and collect seeds
Regional

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

Barbourville, Kentucky

Featured Videos

Gardener's Notes:

0
positive
1
neutral
1
negative
Sort By:
Sort By:
D
Lucerne Valley, CA (Zone 8a) | March 2006 | neutral

So far, so good. My instructions for sowing suggested stratification. My seeds have been in the fridge since 3-9-06, and are beginning to sprout.

S
Oklahoma City, OK (Zone 7a) | August 2004 | negative

This plant is listed as a noxious weed by the 42 states, and may be known by one or more common names in different places. It is not nat...Read More

Featured
Common True Katydid
(Pterophylla camellifolia)
Mallard
(Anas platyrhynchos)
Featured
Common True Katydid
(Pterophylla camellifolia)
Mallard
(Anas platyrhynchos)