Photo by Melody

PlantFiles: Centaurea, Yellow Knapweed
Centaurea orientalis

bookmark
Family: Asteraceae (ass-ter-AY-see-ee) (Info)
Genus: Centaurea (sen-TAR-ee-uh) (Info)
Species: orientalis (or-ee-en-TAY-liss) (Info)

2 members have or want this plant for trade.

Category:
Alpines and Rock Gardens
Perennials

Height:
18-24 in. (45-60 cm)
24-36 in. (60-90 cm)

Spacing:
15-18 in. (38-45 cm)

Hardiness:
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)
USDA Zone 10a: to -1.1 C (30 F)
USDA Zone 10b: to 1.7 C (35 F)

Sun Exposure:
Full Sun
Sun to Partial Shade

Danger:
N/A

Bloom Color:
Bright Yellow

Bloom Time:
Mid Summer
Late Summer/Early Fall

Foliage:
Herbaceous
Leathery-Textured

Other details:
This plant is attractive to bees, butterflies and/or birds
Drought-tolerant; suitable for xeriscaping
Average Water Needs; Water regularly; do not overwater
This plant may be considered a protected species; check before digging or gathering seeds
This plant is resistant to deer
Provides winter interest

Soil pH requirements:
Unknown - Tell us

Patent Information:
Unknown - Tell us

Propagation Methods:
From herbaceous stem cuttings

Seed Collecting:
Unknown - Tell us

Click thumbnail
to view:

By Terry
Thumbnail #1 of Centaurea orientalis by Terry

By Terri1948
Thumbnail #2 of Centaurea orientalis by Terri1948

By Terri1948
Thumbnail #3 of Centaurea orientalis by Terri1948

Profile:

1 positive
No neutrals
No negatives

Gardeners' Notes:

RatingAuthorContent
Positive LeBug On Feb 22, 2009, LeBug from Greenville, IN (Zone 6a) wrote:

This is a go in my garden for sure! It is covered with Fritillary butterflies spring/early summer when the blooms are almost gone they still pop up occasionally during summer, maybe if I cut it back it might bloom in fall, does anyone know about this? The bees love it too! Foliage stays decent all summer, doesnt need much water either.

Regional...

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

,
Norristown, Pennsylvania



We recommend Firefox
Overwhelmed? There's a lot to see here. Try starting at our homepage.

[ Home | About | Advertise | Media Kit | Mission | Featured Companies | Submit an Article | Terms of Use | Tour | Rules | Privacy Policy | Contact Us ]

Back to the top

Copyright © 2000-2014 Dave's Garden, an Internet Brands company. All Rights Reserved.
 

Hope for America