Calling all "judges" for the annual DG County Fair! Vote for your favorites here!

Centaurea, Yellow Knapweed

Centaurea orientalis

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

Category:

Alpines and Rock Gardens

Perennials

Foliage Color:

Unknown - Tell us

Bloom Characteristics:

This plant is attractive to bees, butterflies and/or birds

Water Requirements:

Drought-tolerant; suitable for xeriscaping

Average Water Needs; Water regularly; do not overwater

Where to Grow:

Unknown - Tell us

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

Provides winter interest

This plant is resistant to deer

Other details:

This plant may be considered a protected species; check before digging or gathering seeds

Soil pH requirements:

Unknown - Tell us

Patent Information:

Unknown - Tell us

Propagation Methods:

From herbaceous stem cuttings

Seed Collecting:

Unknown - Tell us

Regional

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

,

Norristown, Pennsylvania

Gardeners' Notes:

1
positive
0
neutrals
0
negatives
RatingContent
Positive

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.

BACK TO TOP