Alcea rosea
flowerHollyhock is the towering cottage-garden classic - 5 to 8 ft single stems studded bottom-to-top with crepe-paper single or double blooms in pastel pink, deep maroon, white, yellow, or apricot. Most types are biennial, meaning they produce a leafy rosette the first year and flower spectacularly in the second, then self-seed and reseed in place to behave like long-lived perennials. They draw bumblebees and hummingbirds and look right against any fence, barn, or wall.
Sun
full sun
Water
Every 5 days
Bloom
~365 days
Difficulty
easy
Lifecycle
biennial
Leaves year 1, flowers year 2
Spacing
24 in. apart
Planting Depth
Seed 1/4 in. deep
Soil pH
6.0-8.0
Soil Type
Rich, well-draining
Hardiness Zones
Zones 3 – 9
Grown as an annual — this range is its winter hardiness, but you can grow it for a single season in any zone.
When to Fertilize
Light feed in spring; again before flowering
Fertilizer
Balanced or compost; low needs
Direct sow Hollyhock seed 1/4 in. deep in spring or late summer; either timing produces a leafy rosette the first year and blooms the second. Or start seed indoors 8 to 10 weeks before the last frost. Space plants 24 in. apart in full sun and rich, well-drained soil; choose a sheltered spot, since wind can topple the tall flower spikes. Water at the base in the morning to fight hollyhock rust, the main weakness of the species. Cut spent stalks at the base after flowering to limit self-seeding or leave them to volunteer.
🌼 Have a different variety?Cultivars of the same species usually share the same basic care — they differ mainly in flower color, height, and bloom form, not in how you grow them. So this guide still applies even if your exact variety isn't the one shown.
Start seeds indoors
Feb 18
Transplant outdoors
Apr 15
Projected first bloom
Apr 15
Good neighbors that attract beneficial insects or deter pests
Proactive ways to stop trouble before it starts — tap a name with an arrow for its full guide
The plants main weakness - water at the base in the morning, give plants airflow, remove infected leaves immediately, and clean up debris each fall
Handpick beetles into soapy water in the cool of the morning; avoid traps, which attract more beetles than they catch
Hose off colonies, plant yarrow nearby for hoverflies, and support resident ladybugs
Protect young rosettes with grit or traps in cool damp spring weather
Hollyhock is grown as a garden flower rather than a cut flower - the stems are short-lived in a vase. Cut individual blooms for floating in a shallow bowl, or photograph them in situ. Leave a few seedheads to ripen and shatter if you want a self-sowing patch; collect dry seed to share or save by mid-fall.
Hollyhock is a powerful pollinator plant: the open single forms in particular feed bumblebees and native bees, and the tall flower spires also draw hummingbirds and hawkmoths. The bloom petals are edible and traditionally used as a colorful garnish and a soothing herbal tea. The plant has a long medicinal history in the mallow family for its mucilaginous qualities.
For educational and informational purposes only — HomeSown is not medical, health, or other professional advice. Always positively identify any plant before handling or eating it; some plants, and some parts of otherwise-edible plants, are toxic. Consult a qualified professional before consuming or otherwise using any plant, especially if you are pregnant, nursing, taking medication, or have a health condition.