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Verbascum bombyciferum Polarsommer - Mullein

Verbascum bombyciferum Polarsommer
Giant silver Mullein, Turkish mullein, Broussa mullein

4,9/5
11 reviews
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I planted them last autumn and was waiting for them to establish before giving feedback: they have all developed perfectly. It is now June: currently, the young plant is producing its foliage and the flowers will come next year (it takes 2 years for a mullein to flower). It is worth noting that it has a significant soil footprint, which should be taken into consideration when planting.

Marielle, 27/06/2021

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This plant carries a 12 months recovery warranty

More information

Value-for-money
Also known as Mullein or Great Mullein, Verbascum bombyciferum 'Polarsommer' grows in all types of poor, chalky, stony, and dry soil.
Flower size
1 m
Height at maturity
1.60 m
Spread at maturity
45 cm
Exposure
Sun
Hardiness
Hardy down to -23°C
Soil moisture
Dry soil
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Recommended planting time February to May, September to November
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Flowering time July to September
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Description

Verbascum bombyciferum 'Polarsommer' is also known as mullein or great mullein and grows in all types of poor, limestone, stony and dry soil.

Verbascum 'Polarsommer' is biennial or perennial and blooms in the heart of summer, from July to September. It produces a large rosette of downy, frosty white leaves with blue highlights, from which large spikes of yellow flowers emerge.

 

Verbascum is a plant of poor and arid lands that grows in the sun. It is short-lived but ensures its continuation through generous self-seeding.

Stunning in a dry garden associated with Stipa tenuifolia or S. gigantea, Centranthus ruber 'Coccineus' and Salvia nemorosa 'Caradonna'.

 

 

Verbascum bombyciferum Polarsommer - Mullein in pictures

Verbascum bombyciferum Polarsommer - Mullein (Foliage) Foliage

Flowering

Flower colour yellow
Flowering time July to September
Inflorescence Spike
Flower size 1 m

Foliage

Foliage persistence Evergreen
Foliage colour grey or silver

Plant habit

Height at maturity 1.60 m
Spread at maturity 45 cm
Growth rate fast

Botanical data

Genus

Verbascum

Species

bombyciferum

Cultivar

Polarsommer

Family

Scrophulariaceae

Other common names

Giant silver Mullein, Turkish mullein, Broussa mullein

Origin

Mediterranean

Product reference74721

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Planting and care

Grow in well-draining, limestone, sandy or rocky soil. Verbascum bombyciferum enjoys very sunny spots. Do not cut off the faded flower spikes, as they ensure the plant's longevity by self-seeding in large quantities.

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Planting period

Recommended planting time February to May, September to November

Intended location

Suitable for Meadow, Rockery
Type of use Back of border
Hardiness Hardy down to -23°C (USDA zone 6a) Show map
Planting density 5 per m2
Exposure Sun
Soil pH Neutral, Calcareous
Soil type Chalky (poor, alkaline and well-drained), Silty-loamy (rich and light), Stony (poor and well-drained)
Soil moisture Dry soil, well-drained, poor, deep

Care

Pruning instructions Cut faded inflorescences at the base of the stem to promote more flowers and the longevity of the plant, unless you want it to self-seed. Prune the dry parts as soon as they are no longer decorative and clean the clump by the end of winter.
Pruning Pruning recommended once a year
Pruning time August to September
Overwinter Can be left in the ground
4,9/5
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