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Hypericum inodorum Radiance - St. John's wort

Hypericum Radiance® 'Marc2'
St. John's wort

3,4/5
3 reviews
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2 reviews

Great start, this plant seems to be thriving, in the sun from midday onwards, and when paired with spruces and a pyracantha.

Eutrope, 25/11/2024

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This plant carries a 24 months recovery warranty

More information

A brand new wonderfully coloured bushy St. John's wort, perfect for adorning a terrace or livening up a small bed. Its young shrimp pink shoots gradually become variegated with white and tender green, forming a beautiful association with the older dark green leaves. Like all St. John's wort, this small bushy shrub with semi-evergreen leaves offers a cheerful bright yellow flowering from June to August. Easy cultivation in ordinary soil, preferably in semi-shade.
Flower size
3 cm
Height at maturity
80 cm
Spread at maturity
60 cm
Exposure
Partial shade
Hardiness
Hardy down to -20°C
Soil moisture
all types, Moist soil
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Best planting time March, October
Recommended planting time March to May, September to November
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Flowering time June to August
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Description

Hypericum x inodorum 'Marc02' RADIANCE® is a new variety of shrubby St. John's wort with remarkably coloured foliage, and a compact and bushy habit, perfectly suited to small spaces and container cultivation. Its young shrimp pink shoots, juvenile leaves variegated with white and green, older leaves of a deep green, and radiant yellow flowers, follow each other and blend on the plant, making this variety attractive for many months. An all-terrain plant par excellence, semi-evergreen but well hardy, it can be established everywhere, preferably in semi-shade.

 

Hypericum x inodorum 'Marc02' RADIANCE is a Belgian hybrid creation, whose parentage is currently unknown. Like all St. John's wort, it belongs to the Hypericaceae family. It has a fairly rapid growth rate and will generally not exceed 80cm (32in) in height and 60cm (24in) in spread. This St. John's wort has a rounded and dense habit, with well-ramified vegetation. In this variety, the young shoots and young leaves are superbly coloured and variegated with pink, white and tender green. The mature leaves are elongated ovate in shape, leathery, without petioles, of a fairly dark green, and slightly glaucous underneath. If the winter is not too harsh, they persist on the branches. This variety flowers in summer, from June to August. The flowers are compound with 5 rounded petals, golden-yellow, arranged in an open cup. The centre of the flower is occupied by a crown of protruding stamens.

 

St. John's wort is appreciated for its long flowering period and ease of cultivation in all soils and under all our climates, even by the sea and even in the shade. This one boasts changing foliage, which is interesting for a good part of the year. Easy to grow in ordinary but well-drained soil, it is a star plant for the terrace and the ideal small bush to install in a romantic setting, even for gardening beginners. It can be planted, for example, with purple foliage (physocarpus, berberis, bronze fennel) in a fashionable setting, or play on the perfect harmony between the yellow of its flowers and the blue of dwarf perovskiacaryopteris, nepeta, or perennial geraniums. Surround your flower beds with euphorbias and Lady's Mantle, with very flattering foliage. 

Hypericum inodorum Radiance - St. John's wort in pictures

Hypericum inodorum Radiance - St. John's wort (Flowering) Flowering
Hypericum inodorum Radiance - St. John's wort (Plant habit) Plant habit

Plant habit

Height at maturity 80 cm
Spread at maturity 60 cm
Habit Irregular, bushy
Growth rate normal

Flowering

Flower colour yellow
Flowering time June to August
Flower size 3 cm
Bee-friendly Attracts pollinators

Foliage

Foliage persistence Semi-evergreen
Foliage colour variegated

Botanical data

Genus

Hypericum

Cultivar

Radiance® 'Marc2'

Family

Clusiaceae

Other common names

St. John's wort

Origin

Cultivar or hybrid

Product reference874991

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Planting and care

Plant in spring or autumn, in a semi-shaded situation, sheltered from the wind. Its foliage can be damaged by too much scorching sun. This St John's wort adapts to almost all soils, as long as they are well prepared and not too compact. The pH of the soil is not important, but it should neither be excessively acidic nor excessively limey. It needs light, well-drained soil that is deep enough to better withstand dry summers. It is quite hardy, resistant to diseases, and its enemies are rare.

Perform a shaping pruning in spring to promote a compact habit.

In a pot, you will need to water it regularly and provide it with shrub fertiliser in spring and summer.

Planting period

Best planting time March, October
Recommended planting time March to May, September to November

Intended location

Suitable for Meadow, Woodland edge
Type of use Border, Edge of border, Container, Slope
Hardiness Hardy down to -20°C (USDA zone 6b) Show map
Ease of cultivation Beginner
Planting density 3 per m2
Exposure Partial shade
Soil pH Calcareous, Any
Soil type Chalky (poor, alkaline and well-drained), Silty-loamy (rich and light), Stony (poor and well-drained)
Soil moisture all types, Moist soil, Deep, well-draining

Care

Pruning instructions Prune in spring to maintain a compact habit and encourage the appearance of young pink-coloured shoots.
Pruning Pruning recommended once a year
Pruning time March
Soil moisture all types, Moist soil
Disease resistance Good
Overwinter Can be left in the ground
3,4/5
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