Cirsium rivulare 'Lowcir' syn. Cirsium rivulare 'Frosted Magic'
Plume Thistle 'Frosted Magic'
The brook thistle produces flower heads which appear on erect stems in mid-summer above spiny, dark green leaves. It is a tall, attractive thistle and a valuable addition to a summer garden, in groups among other perennials. It will tolerate dry conditions and partial shade, but does best in a moist, sunny border. 'Frosted Magic' is a new release at RHS Chelsea 2016. Clump forming. Pure white flowers early to mid summer.
Contributed by @robbiec
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Full sun
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Occasional watering
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Full Frost Hardy: 5F (-15°C)
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Moist and free draining
Common name
Plume Thistle 'Frosted Magic'
Latin name
Cirsium rivulare 'Lowcir' syn. Cirsium rivulare 'Frosted Magic'
type
Herbaceous Perennials
family
Asteraceae
ph
5.0 - 7.5 Acid - Neutral
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Light
Full sun
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Frost
Full Frost Hardy: 5F (-15°C)
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Soil
Moist and free draining
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Water
Occasional watering
Plant & bloom calendar
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Best time to plant
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When the plant will bloom
full grown dimensions
0.60 M
1.20 M
Cirsium rivulare 'Lowcir' syn. Cirsium rivulare 'Frosted Magic'
The brook thistle produces flower heads which appear on erect stems in mid-summer above spiny, dark green leaves. It is a tall, attractive thistle and a valuable addition to a summer garden, in groups among other perennials. It will tolerate dry conditions and partial shade, but does best in a moist, sunny border. 'Frosted Magic' is a new release at RHS Chelsea 2016. Clump forming. Pure white flowers early to mid summer.
Planting
From Early Spring TO Mid Spring
Plant young plants out in spring in full sun and in a well prepared, moist but well drained soil. To prevent spreading, you can restrict spread by planting in a large container which can be sunk into the soil in the growing position.
Flowering
From Early Summer TO Mid Autumn
Flowers appear in early Summer and, if dead-headed, will continue all through Summer to first frosts.
Propagating by division
From Mid Autumn TO Late Autumn
After approximately three years, once herbaceous perennial varieties have become established clumps they should be divided in order to retain vigour, and to propagate the plant. The simplest method is to carefully dig around the clump and gently pull it apart into fist sized pieces and re-plant immediately. The divisions can be re-planted straight into the ground, or, for more reliable establishment, into pots to overwinter before being planted out in the following Spring.
robbiec
DeborahBanks
bexsmith