trefle.io · Taken Aug 16, 2018 by Manu Pacha (cc-by-sa)
Malvaceae
Hollyhock
Alcea rosea
Also known as Alcea rosea var. atra, Althaea chinensis, Althaea flexuosa, Althaea sinensis
Native Plants · Cottage-Garden · Tall-Perennial · Cut-Flower · Pollinator · Old-Fashioned · Border-Plant · Colorful · Biennial · Flowering · Classic
Hollyhocks are classic cottage garden perennials that produce tall, showy flower spikes in a wide range of colors. Plant in a sunny to partially shaded spot with well-drained soil and provide support staking in windy locations. They are susceptible to rust fungus, so water at the base and ensure good air circulation around plants.
Growing conditions
The details behind the basics
- Daily light
- 6 hours
- Watering
- Water deeply at the base, allowing the top inch of soil to dry between waterings · Every 7-10 days
- Maintenance
- Moderate
- Soil
- loam
- Soil pH
- 6–7.5
- Temperature
- -20°F to 90°F
- Cycle
- Perennial
- Propagation
- Seed, Division
Hardiness
USDA 4a-9b
Form & growth
Mature size and habit
- Mature height
- 12 in – 3 ft
- Spread
- 2 ft
- Spacing
- 18 in apart
- Growth rate
- Moderate
- Root depth
- Medium
- Flowers
- No
- Foliage
- Medium
Ecology & origin
Where it belongs and what it brings
- Native to
- Alabama, Albania, Algeria, Argentina Northwest, Arizona, Assam, Austria, Azores, Bangladesh, Bulgaria, California, Canary Is., Central European Rus, China North-Central, China South-Central, China Southeast, Colorado, Connecticut, Cuba, Cyprus
- Attracts
- Bees, Butterflies, Hummingbirds, Birds
Sources: trefle, usda, aspca
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