Hollyhock Jet Black

Hollyhock Jet Black

Hollyhock Jet Black. A stunning Heirloom Bi-annual  / Perennial producing almost near black flowers with the slightest hint of red on tall elegant flower stems reaching 6ft.  Direct sow in spring or autumn.   Easy to grow and flowers in its second season.

Cultivation Advice Hollyhock Jet Black

Days To Germination: 14-21 days

Optimum Soil Temp. For Germination: 65F

Planting Depth: 1/16 inch

Spacing, Seed: 2-3 inch

Spacing, Plant: 24 inches

Plant Height: 6 Feet

Light: Full Sun

• Sow undercover from 4-6 weeks before the last frost through to Jul at 1/16 of an inch deep and cover with fine soil.
• Sowings in late summer should be overwintered in a cool sheltered location.
• When 2-3 inches pot on and plant out 18 to 24 inches apart after all frost has passed.
• This plant likes fairly moist soil.
• Feed during the Spring.