Verbascum x 'Helen Johnson'

Mullein

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Common Name: 

Mullein

Plant Type: 

Flower color: 

Foliage color: 

Silver

Sun (From 0 to 5): 

Water (From 0 to 5): 

Maximum temperature: 

30°C

Minimum temperature: 

7°C

Maximum height: 

75 cm

Maximum width: 

45 cm

Mullein (Verbascum x 'Helen Johnson') - Description

Large 2" blooms with large, silver velvet leaves. Prefers well-drained soil. Ht. 3'. Space 2' apart. Bloom time is June-Sept. Perennial.

Mullein (Verbascum x 'Helen Johnson') - Blooming

Flowers in the summer with spikes of clustered, often stemless flowers that are around 1 inch across. Usually yellow in color, but sometimes come in purple, red, or white.

Mullein (Verbascum x 'Helen Johnson') - Growth

Biennials, a few annuals, perennials, and subshrubs. Does best with full sun. Foliage is covered with wooly hairs, which makes this genus of plants relatively distinct. Grows to 6 ft. tall for some species. Can become weedy especially the species V. thapsus. Grow alpine species in an alpine house to protect from winter moisture. Most Mulleins that are cultivated are hybrids. Hybrid and large species work well in a large, mixed or herbaceous border or gravel bed. Can also be naturalized in a wild or woodland garden. Smaller species like V. dumulosum and V. pestallozae make nice additions to a rock garden or alpine house.

Mullein (Verbascum x 'Helen Johnson') - Planting

Self sows freely. Propagate seeds of biennials and perennials in late spring or early summer in containers in a cold frame. Biennials planted at 55-64°F (13-18°C)may flower and die in the first year. Can also propagate perennials by division in spring, or from root cuttings in winter. Semi-ripe cuttings work for shrubby plants; take in late summer.

Mullein (Verbascum x 'Helen Johnson') - Pest

Caterpillars. Other issues include powdery mildew, and fungal leaf spots.

Mullein (Verbascum x 'Helen Johnson') - Soil and irrigation

Needs alkaline, poor, well-draining soils.

Verbascum x 'Helen Johnson' - Mullein - Photos