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PlantSnap
Plant Care
Field scabious
(Knautia arvensis)
Also Known As
Field scabious, Corn scabious, Blue bottle, Scabious flower
About This Plant
Knautia arvensis is a flowering plant species that belongs to the family Dipsacaceae. It is a herbaceous perennial plant that grows up to 60 cm tall. The plant produces pinkish-purple flowers that bloom from June to September. The leaves of the plant are greyish-green in colour and are deeply lobed.
Plant Care Instructions
Outdoor Size Range
12-24 inches (30-60 cm)
Light Requirements
Knautia arvensis prefers full sun to partial shade. It can tolerate some shade but will not bloom as well.
Humidity Needs
Knautia arvensis can tolerate a wide range of humidity levels and does not require any specific humidity.
Fertilizing Schedule
The plant does not require much fertilizer. A light application of balanced fertilizer in the spring can help promote growth.
Pruning Guidelines
Deadheading the spent flowers can help promote new blooms. The plant can also be cut back in the fall to promote new growth in the spring.
Common Pests and Diseases
Knautia arvensis is generally not affected by pests or diseases.
Indoor Size Range
Not suitable for indoor growth
Watering Schedule
The plant prefers well-drained soil and does not require frequent watering. It is drought-tolerant and can survive in dry conditions.
Temperature Range
The plant is cold-hardy and can tolerate temperatures as low as -40°F (-40°C). It can also tolerate high temperatures up to 90°F (32°C).
Growing Season
Knautia arvensis blooms from June to September.
Growing Difficulty Level
Knautia arvensis is relatively easy to grow and care for. It is a hardy plant that can tolerate a wide range of growing conditions.
USDA Hardiness Zones
Knautia arvensis is hardy in USDA zones 3-9.
Did You Know?
The common name 'Field scabious' comes from the belief that the plant could cure scabies, a skin condition caused by mites.
