shrubN. America Native

Hearst's Ceanothus

The Story

Plant Bio

Ceanothus hearstiorum, or Hearst's Ceanothus, is a low-growing, spreading evergreen groundcover native to a small coastal area of California. It forms a dense mat of small, dark green leaves and produces clusters of light blue flowers in spring.

This species is highly drought-resistant and can tolerate coastal conditions, making it an excellent choice for coastal gardens and xeriscaping.

Uses & Benefits:

Ceanothus hearstiorum offers striking blue flowers and silvery foliage, ideal for hedges and borders.

Provides erosion control on slopes with its dense root system.

Supports native pollinators and beneficial insects.

Essentials

At a Glance

Plant Type

Shrub

Height

8 inches

Width

84 inches

Light

Full Sun, Partial Sun

Zones

8, 9, 10

Water

Low, drought-tolerant once established

Humidity

Prefers low humidity

Lifespan

Perennial shrub

Native To

California

Toxicity

Non-toxic

Bloom period

Early summer – Late summer

In flower about 3 months of the year

Planting

How to Grow

Tuck seeds into well-draining soil in early spring.
Mist cuttings regularly to maintain humidity for 6 weeks.
Plant in full sun for optimal growth.
Water deeply once a week during dry periods.
Apply a balanced fertilizer in spring and summer.
Prune after flowering to maintain shape and health.

Pro Tip

Use well-draining soil and avoid overwatering to prevent root rot.

Keep It Thriving

Care Guide

Do

Provide full sun for best flowering 🌞
Water regularly during dry spells 💧
Prune lightly after flowering ✂️
Use well-draining soil to prevent waterlogging 🌱

Don't

Avoid overwatering to prevent root rot ❌
Don't prune in late fall or winter ❌
Avoid heavy fertilization that can promote excessive foliage ❌

Seasonal Care Calendar

Task	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Fertilize
Mulch
Plant
Prune

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Wildflower borderSunny slope accent

Companion Plants

Lavender Echinacea SalviaRussian sage Yarrow

Multiply

Propagation Methods

Good to Know

Common Questions

Hearst's Ceanothus questions

What zones can Hearst's Ceanothus grow in?

Hearst's Ceanothus is hardy in USDA Zones 8–10. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.

Is Hearst's Ceanothus deer resistant?

Yes — Hearst's Ceanothus is rated deer-resistant. Deer typically pass it over, though extreme hunger can override any plant's defenses.

When does Hearst's Ceanothus bloom?

Hearst's Ceanothus typically blooms in early summer through late summer. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.

Does Hearst's Ceanothus need full sun?

Hearst's Ceanothus does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.

Is Hearst's Ceanothus drought tolerant?

Yes — once established (usually after the first full season), Hearst's Ceanothus handles dry spells with minimal watering. Water deeply its first year to build the root system that makes that possible.