Knautia Species, Field Scabious
Knautia arvensis
| Family: | Caprifoliaceae (cap-ree-foh-lee-AY-see-ee) (Info) (cap-ree-foh-lee-AY-see-ee) (Info) |
| Genus: | Knautia (NAW-tee-uh) (Info) |
| Species: | arvensis (ar-VEN-sis) (Info) |
| Synonym: | Scabiosa arvensis |
Category:
Perennials
Water Requirements:
Average Water Needs; Water regularly; do not overwater
Sun Exposure:
Full Sun
Foliage:
Herbaceous
Foliage Color:
Height:
36-48 in. (90-120 cm)
Spacing:
12-15 in. (30-38 cm)
Hardiness:
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)
USDA Zone 10b: to 1.7 °C (35 °F)
Where to Grow:
Danger:
Bloom Color:
Lavender
Bloom Characteristics:
This plant is attractive to bees, butterflies and/or birds
Flowers are fragrant
Bloom Size:
Bloom Time:
Late Spring/Early Summer
Mid Summer
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:
Non-patented
Propagation Methods:
From seed; direct sow outdoors in fall
Seed Collecting:
Regional
This plant is said to grow outdoors in the following regions:
Roswell, New Mexico
Cincinnati, Ohio
Gardeners' Notes:
| Rating | Content |
|---|---|
| Negative | On Oct 25, 2006, weedlady74 from Bozeman, MT wrote: Field scabious is an invasive species! It is capable of invading undisturbed plant communities and, once established, is very difficult to eradicate. Before planting, please check your state and county noxious weed lists to be sure you are not adding to an already difficult problem. If you decide to plant, do so in a spot not adjacent to any natural area, and use care to prevent the seeds from spreading away from the site. |
| Neutral | On Sep 8, 2001, Baa wrote: Perennial from Europe through to Siberia, Iran and Central Asia. Has over wintering, hairy rosettes of deep green, entire (smooth edged) or pinnately lobed leaves, stem leaves are pinnate. Bears small pincusion lilac sometimes pale purple flowers with the outer petals larger than the inner petals. Has clustered seed heads and each seed bears several strong, blackish hairs on the top. |
