Sneezewort, Sneezeweed, Brideflower
Achillea ptarmica 'Noblessa'

Family: Asteraceae (ass-ter-AY-see-ee) (Info)
Genus: Achillea (ak-ih-LEE-a) (Info)
Species: ptarmica (TAR-mik-uh) (Info)
Cultivar: Noblessa

Category:

Perennials

Height:

24-36 in. (60-90 cm)

Spacing:

18-24 in. (45-60 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)

USDA Zone 10a: to -1.1 C (30 F)

Sun Exposure:

Full Sun

Danger:

Handling plant may cause skin irritation or allergic reaction

Bloom Color:

White/Near White

Bloom Time:

Mid Summer

Late Summer/Early Fall

Foliage:

Herbaceous

Other details:

May be a noxious weed or invasive

Average Water Needs; Water regularly; do not overwater

Soil pH requirements:

6.1 to 6.5 (mildly acidic)

6.6 to 7.5 (neutral)

7.6 to 7.8 (mildly alkaline)

Patent Information:

Non-patented

Propagation Methods:

By dividing the rootball

From seed; winter sow in vented containers, coldframe or unheated greenhouse

From seed; sow indoors before last frost

From seed; direct sow after last frost

Seed Collecting:

Allow seedheads to dry on plants; remove and collect seeds

Properly cleaned, seed can be successfully stored

N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed

Regional

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

Jackson, Missouri

Gardeners' Notes:

1
positive
0
neutrals
0
negatives
RatingContent
Positive

On Apr 15, 2015, birder17 from Jackson, MO (Zone 6b) wrote:

I really like this plant. It has spread quite slowly in my garden. I now have enough to move around after 5 years.

The emerging foliage is quite striking in the spring (April) that are almost chartreuse. The leaves are quite thin and slender.

The plant gets about 12 inches tall and keeps a compact tidy habit. It does need to be divided every 3 years or so.

It blooms all summer with small white double flowers a little smaller than a dime until frost. I cut it back mid-season to promote a fresh bouquet of flowers. It looks nice at the feet of other plants.

As with all Achilleas, they require little care. A very easy plant to have in your garden. I do recommend this plant.