Hollyhocks

Althaea rosea 'Chaters Double Mix'

Description:

Family: Malvaceae (mal-VAY-see-ee) (Info) Genus: Alcea (al-KEE-uh) (Info) Species: rosea (RO-zee-uh) (Info) Cultivar: Chater's Double Mix Synonym:Althaea rosea Category: Biennials Perennials Height: 4-6 ft. (1.2-1.8 m) Spacing: 15-18 in. (38-45 cm) 18-24 in. (45-60 cm) Hardiness: USDA Zone 4a: to -34.4 °C (-30 °F) USDA Zone 4b: to -31.6 °C (-25 °F) 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) USDA Zone 9a: to -6.6 °C (20 °F) USDA Zone 9b: to -3.8 °C (25 °F) Sun Exposure: Full Sun Danger: Unknown - Tell us Bloom Color: Pale Pink Pink Rose/Mauve Red Scarlet (Dark Red) Pale Yellow Bright Yellow White/Near White Bloom Time: Mid Summer Late Summer/Early Fall Foliage: Herbaceous Other details: Requires consistently moist soil; do not let dry out between waterings Self-sows freely; deadhead if you do not want volunteer seedlings next season Soil pH requirements: 5.6 to 6.0 (acidic) 6.1 to 6.5 (mildly acidic) 6.6 to 7.5 (neutral) Patent Information: Unknown - Tell us Propagation Methods: By dividing the rootball From seed; direct sow outdoors in fall From seed; sow indoors before last frost From seed; direct sow after last frost Seed Collecting: Collect seedhead/pod when flowers fade; allow to dry Allow pods to dry on plant; break open to collect seeds Properly cleaned, seed can be successfully stored