Denver Plants

Common name: "Hollyhock"
Latin name:
Alcea rosea species

Hollyhocks - Alcea rosea
Zone: 3 - 9
Elevation to:
8500'
Growth habit:
Clump forming
Max height:
48" - 60"
Spread: 24"
Flowers: Yes, May - June
Flower type: Racemes
Native to area: No
Available varieties: 10+
Sunshine:
Water: Pictured Perennial: Hollyhocks 
Alcea rosea Single Mix
Perennial Cultivation:  Hollyhocks are a tall growing perennial plant that can be easily damaged by high winds. It is best to plant them in sheltered areas, or provide some sort of support as the plant matures. Hollyhocks are shorted live perennials but easily re-seed themselves appearing in the garden year after year.

Plant Hollyhocks in full sun in fertile, well drained soil. They will tolerate light shade which can be beneficial during mid day late summer heat. Flowers appear late spring an can continue blooming throughout the growing season. Spent flower stalks can be removed to contain the plant from spreading, or left on the plant to produce seed for the following season. Avoid planting Hollyhocks in areas that stay wet while the plant is dormant.

Hollyhock's are excellent for attracting Butterflies.

Propagation:
Hollyhock can be grown from seed but you'll have to wait until the second season before the plant flowers. For quicker growth and flowering, purchase pre-started Hollyhock plants at your local Garden Center or greenhouse. Space transplants 18" to 24" apart.

Potential pests ~ diseases:
Aphids, Spider mites and Hollyhock rust.

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