Position

Sun exposure:
Full sun
Aspect:
South facing, west facing
Position in border:
Front, middle

Soil

Succeeds on poor soil:
Chalky / Alkaline / Well Drained / Light / Sandy

Broussa or giant mullein, Verbascum bombyciferum, is a statuesque biennial with silvery, hairy foliage and tall flower spikes bearing bright yellow flowers.

Verbascum bombyciferum 'Polarsommer' – sometimes known as 'Arctic Summer' – is so-called because it bears a particularly dense and long-lasting layer of hairs, that give it a frosted appearance. In its first year it produces a rosette of large leaves. In the second year, a tall, sometimes branched flower spike emerges, bearing short-lived but numerous yellow flowers. It’s a great plant for wildlife – carder bees (Anthidium) use the ‘fur’ on the leaves to build their nests, the flowers attract bees and hoverflies and the foliage serves as a caterpillar food plant.

Verbascum bombyciferum 'Polarsommer' is a good self-seeder, and is often found growing on disturbed soils where the long-lived seeds have been able to germinate. For best results grow Verbascum bombyciferum 'Polarsommer' in full sun in well-drained, neutral to alkaline soil. It’s best not to crowd it too much with other plants, as it’s easily overcrowded and outcompeted in these situations.

Plant calendar

JanFebMarAprMayJunJulAugSepOctNovDec
Sowyesyesyesyesyes
Plantyesyes
Flowersyesyes
Collect seedsyesyes

Verbascum ‘Polarsommer’ and wildlife

Verbascum ‘Polarsommer’ is known for attracting bees, beneficial insects and other pollinators. It has nectar/pollen rich flowers.

Is known to attract Bees
Bees
Is known to attract Beneficial insects
Beneficial insects
Is not known to attract Birds
Birds
Is not known to attract Butterflies/​Moths
Butterflies/​Moths
Is known to attract Other pollinators
Other pollinators

Is Verbascum ‘Polarsommer’ poisonous?

Verbascum ‘Polarsommer’ has no toxic effects reported.

No reported toxicity to:
Is not known to attract Birds
Birds
Is not known to attract Cats
Cats
Is not known to attract Dogs
Dogs
Is not known to attract Horses
Horses
Is not known to attract Livestock
Livestock
Is not known to attract People
People
Plants that go well with Verbascum 'Polarsommer'