Cranberry Hibiscus - Key Growing Information

Cranberry Hibiscus 'Mahogany Splendor', prized by florists for its radiant red foliage.
DAYS TO GERMINATION: 3-5 days at 70-76°F (21-24°C)

SOWING: Transplant (recommended) - 6-8 weeks before last frost, covering seed lightly. Transplant out after danger of frost has passed. Hibiscus is a heat-loving crop and benefits from use of a soil warming mulch, such as black plastic or black solar mulch.

LIGHT PREFERENCE: Sun. Hibiscus thrives in heat and humidity so is best grown in full sun.

PLANT HEIGHT: 48-70".

PLANT SPACING: 24-36".

HARDINESS ZONES: Zones 8-9.

STEM LENGTH: 12-70". Pinching is not required but if plants are pinched at a young stage, lateral branches will benefit greatly in length and quality.

HARVEST: For cut foliage, harvest once leaves are mature (not tender) and stems are straight, firm, and at least slightly woody.

SOIL REQUIREMENTS: Well drained but moist soil with high organic matter. Preferred pH of 5.8-6.5.

NOTE: Foliage will have green/ rust tones in the greenhouse, but mature to burgundy in full sun outdoors.

SCIENTIFIC NAME: Hibiscus acetosella

ALTERNATE NAMES: False Roselle, African Rose Mallow