Alcea roseal
perennial

Hollyhock

Alcea roseal

The Story

Plant Bio

A classic cottage garden plant, Alcea rosea is an upright, typically biennial or short-lived perennial, featuring tall spikes of large, showy, funnel-shaped flowers.

Known for its towering height and susceptibility to rust disease. Flowers attract bees, butterflies, and hummingbirds.

Uses & Benefits:

Ornamental UsesProvides tall, vibrant blooms that add color to gardens and borders.
Practical UsesSupports pollinators like bees and butterflies.
Ecological BenefitsHelps sustain local pollinator populations and enriches garden biodiversity.

Essentials

At a Glance

Plant Type

Perennial

Height

72 inches

Width

24 inches

Light

Full Sun, Partial Sun

Zones

4, 5, 6, 7, 8, 9

Water

Medium

Humidity

Average

Lifespan

Biennial or short-lived perennial

Native To

Southwestern China

Toxicity

Non-toxic

Bloom period

Summer โ€“ Early fall

J
F
M
A
M
J
J
A
S
O
N
D

In flower about 3 months of the year

Planting

How to Grow

  1. Tuck seeds 1/4 inch deep into moist soil in early spring.
  2. Water regularly to keep soil evenly moist but not waterlogged.
  3. Thin seedlings to 12 inches apart once they are established.
  4. Apply a balanced fertilizer every 4-6 weeks during the growing season.
  5. Stake tall varieties to prevent wind damage.
  6. Deadhead spent blooms to encourage more flowers.

Pro Tip

Plant in full sun with well-draining soil for best flowering results.

Keep It Thriving

Care Guide

Do

  • Water deeply once a week ๐ŸŒฑ
  • Deadhead to promote continuous blooming
  • Mulch to retain soil moisture

Don't

  • Overwater to prevent root rot โŒ
  • Avoid heavy shade which reduces flowering
  • Don't disturb roots during peak flowering

Seasonal Care Calendar

TaskJanFebMarAprMayJunJulAugSepOctNovDec
Deadhead
Pest Check
Plant
Stake

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Colorful border plantTall back-of-border accentWildflower meadow addition

Companion Plants

Lavender SalviaCoreopsisEchinaceaShasta Daisy

Multiply

Propagation Methods

Good to Know

Common Questions

Hollyhock questions

What zones can Hollyhock grow in?

Hollyhock is hardy in USDA Zones 4โ€“9. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.

Is Hollyhock deer resistant?

Not reliably. Deer may browse Hollyhock, especially tender spring growth โ€” plan on repellents or fencing where pressure is high.

When does Hollyhock bloom?

Hollyhock typically blooms in summer through early fall. Exact timing shifts a week or two with your zone โ€” Sow's bloom calendar maps it to your garden.

Does Hollyhock need full sun?

Hollyhock does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.

Keep exploring

Grow Hollyhock with confidence

See it in a design of your actual yard, get zone-matched care reminders, and track it season by season in your garden journal.