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Silphium terebinthinaceum

Silphium terebinthinaceum
Prairie Burdock

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10
From 6,90 € 8/9 cm pot
15
From 6,90 € 8/9 cm pot
26
From 7,90 € 8/9 cm pot

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This plant carries a 12 months recovery warranty

More information

Silphium terebinthinaceum, with large golden yellow flowers.
Height at maturity
2.50 m
Spread at maturity
60 cm
Exposure
Sun
Hardiness
Hardy down to -29°C
Soil moisture
Moist soil
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Recommended planting time February to April, September to November
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Flowering time August to October
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Description

A very original perennial plant whose very large ovate, shiny dark green leaves form a huge rosette close to the ground in spring producing highly branched stems, up to 2 to 3 metres (7 to 10 feet) high with a few leaves and large golden yellow flowers in summer.

It is the most beautiful Silphium in our garden and its architectural silhouette and abundant foliage harmonize perfectly with all medium to large grasses.

Silphium terebinthinaceum in pictures

Silphium terebinthinaceum (Flowering) Flowering
Silphium terebinthinaceum (Foliage) Foliage
Silphium terebinthinaceum (Plant habit) Plant habit

Flowering

Flower colour yellow
Flowering time August to October

Foliage

Foliage persistence Deciduous
Foliage colour medium green

Plant habit

Height at maturity 2.50 m
Spread at maturity 60 cm
Growth rate slow

Botanical data

Genus

Silphium

Species

terebinthinaceum

Family

Asteraceae

Other common names

Prairie Burdock

Origin

Cultivar or hybrid

Product reference8490111

Other Silphium

10
From 6,90 € 8/9 cm pot
15
From 6,90 € 8/9 cm pot
26
From 7,90 € 8/9 cm pot

Planting and care

Easy to grow in an open position, in rich, but well-drained soil. This species is more sensitive to winter moisture than S. perfoliatum.

16
14,50 € Each
6
19,50 €

Planting period

Recommended planting time February to April, September to November

Intended location

Suitable for Meadow
Type of use Back of border
Hardiness Hardy down to -29°C (USDA zone 5) Show map
Ease of cultivation Amateur
Planting density 5 per m2
Exposure Sun
Soil pH Neutral, Calcareous
Soil type Silty-loamy (rich and light)
Soil moisture Moist soil, rich, well-drained and deep

Care

Pruning instructions Cut back the dry stems in late winter.
Pruning Pruning recommended once a year
Pruning time March to April
Overwinter Can be left in the ground

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