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Rose of Sharon, Shrub Althea 'Purple Pillar'

Hibiscussyriacus

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Family
Malvaceae (mal-VAY-see-ee)
Info
Genus
Hibiscus (hi-BIS-kus)
Info
Species
syriacus (seer-ee-AK-us)
Info
Synonym
Height

Unknown - Tell us

Spacing
6-8 ft. (1.8-2.4 m)
Hardiness
4-6 ft. (1.2-1.8 m)
Sun Exposure
USDA Zone 5a: to -28.8 °C (-20 °F)
USDA Zone 5b: to -26.1 °C (-15 °F)
USDA Zone 6a: to -23.3 °C (-10 °F)
USDA Zone 6b: to -20.5 °C (-5 °F)
USDA Zone 7a: to -17.7 °C (0 °F)
USDA Zone 7b: to -14.9 °C (5 °F)
USDA Zone 8a: to -12.2 °C (10 °F)
USDA Zone 8b: to -9.4 °C (15 °F)
Bloom Color
Sun to Partial Shade
Bloom Time
N/A
Foliage
Blue-Violet
Other Details
Other details
Mid Summer
Late Summer/Early Fall
Propagation Methods
Deciduous
Seed Collecting

Unknown - Tell us

Soil pH requirements
From softwood cuttings
From seed; direct sow outdoors in fall
From seed; winter sow in vented containers, coldframe or unheated greenhouse
Direct sow as soon as the ground can be worked
From seed; sow indoors before last frost
From seed; direct sow after last frost
Patent Information

Unknown - Tell us

Foliage Color
Allow pods to dry on plant; break open to collect seeds
Bloom Characteristics

Unknown - Tell us

Water Requirements

Unknown - Tell us

Where to Grow

Unknown - Tell us

Regional

This plant is said to grow outdoors in the following regions:

Magna, Utah

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