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Value-for-money

Chrysogonum virginianum

Chrysogonum virginianum
Green-and-gold, Golden Knee, Goldenstar

4,8/5
4 reviews
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Small perennial already purchased. Good product, resistant to heat and with a nice yellow colour, important detail, no slugs in sight yet.

Marie, 02/10/2023

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This plant carries a 12 months recovery warranty

More information

Value-for-money
This is a perennial ground cover plant that slowly spreads through underground stems. It is covered with flower heads resembling golden yellow zinnia flowers from late spring to autumn without interruption. Easy to grow in moist soil, in light shade.
Flower size
3 cm
Height at maturity
30 cm
Spread at maturity
50 cm
Exposure
Sun, Partial shade, Shade
Hardiness
Hardy down to -23°C
Soil moisture
Moist soil
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Best planting time March to April, September to October
Recommended planting time February to April, September to November
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Flowering time May to November
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Description

Chrysogonum virginianum, also known as Golden Knee, is a perennial ground cover that slowly spreads through underground stems. It is covered from late spring to autumn, without interruption, with heads resembling golden yellow zinnia flowers. Easy to grow in moist soil, in the sun or light shade.

 

Chrysogonum virginianum belongs to the Asteraceae family, it is part of the sunflower tribe, which its spreading character does not reveal. This herbaceous plant is native to the Eastern United States, specifically wooded areas of Pennsylvania, Florida, and Louisiana. It forms a 30 cm (12in) tall ground cover, spreading at least 50 cm (20in), with slow growth. The flowering period is particularly long, continuous from May to November. The daisy-like heads with 5 wide ray florets measure 2 to 4 cm (1 to 2in) in diameter. The name of this plant, 'Golden Knee' refers to the nodes on the stem that resemble a joint. The plant spreads through long rhizomes that produce short, upright stems with opposite, cordate leaves resembling lemongrass. The bright green foliage is deciduous.

 

Chrysogonum virginianum will find a place in moist, shaded rockeries, along pathways, to dress the base of roses or the front of perennial borders. It can be paired with tradescantia cerinthoïdes, Geranium 'Ann Thompson' or Geranium 'Dilys' . This perennial will also thrive at the edge of water features, in moist soil and a sunny exposure.

Chrysogonum virginianum in pictures

Chrysogonum virginianum (Flowering) Flowering
Chrysogonum virginianum (Foliage) Foliage
Chrysogonum virginianum (Plant habit) Plant habit

Flowering

Flower colour yellow
Flowering time May to November
Inflorescence Flower head
Flower size 3 cm

Foliage

Foliage persistence Deciduous
Foliage colour green

Plant habit

Height at maturity 30 cm
Spread at maturity 50 cm
Growth rate slow

Botanical data

Genus

Chrysogonum

Species

virginianum

Family

Asteraceae

Other common names

Green-and-gold, Golden Knee, Goldenstar

Origin

North America

Planting and care

Chrysogonum virginianum likes light, well-drained, humus-bearing soils, even peaty ones, retaining moisture. Give it a location in non-burning sunlight (only half a day) if moisture is constant, or in light shade, it even tolerates denser shade. This plant does not like competition from the roots of trees and bushes. It is very hardy in all climates. Flowering can occur in the first year, even if planted in spring. Remove stems carrying faded flowers to improve the appearance of the plant. This plant easily self-seeds and can naturalize in the garden. It is not invasive, its development can be easily controlled.

Planting period

Best planting time March to April, September to October
Recommended planting time February to April, September to November

Intended location

Suitable for Shaded rockery, Woodland edge, Undergrowth
Type of use Edge of border, Slope
Hardiness Hardy down to -23°C (USDA zone 6a) Show map
Ease of cultivation Amateur
Planting density 5 per m2
Exposure Sun, Partial shade, Shade
Soil pH Any
Soil type Silty-loamy (rich and light)
Soil moisture Moist soil, well-draining

Care

Pruning No pruning necessary
Disease resistance Very good
Overwinter Can be left in the ground
4,8/5
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