shrubN. America Native

Vine Hill Manzanita

The Story

Plant Bio

Arctostaphylos densiflora is an evergreen shrub native to a highly restricted range in Sonoma County, California, where it grows in chaparral on sandy shale soils. It forms a dense, rounded mound characterized by smooth, exfoliating bark that ranges from wine-red to dark chocolate brown.

This species is highly valued in horticulture for its adaptability to garden conditions compared to other manzanitas, particularly through selections like 'Howard McMinn'. In winter and spring, it produces dense terminal clusters of urn-shaped white to light pink flowers that contrast with the glossy, dark green foliage.

Uses & Benefits:

Features striking, smooth, mahogany-colored bark and delicate clusters of winter-blooming flowers.

Acts as an effective, drought-tolerant ground cover or low hedge for dry, sloping sites.

Provides a critical early-season nectar source for native bees, bumblebees, and hummingbirds.

Essentials

At a Glance

Plant Type

Shrub

Height

72"

Width

84"

Light

Full Sun, Partial Sun

Zones

7, 8, 9

Water

Low

Humidity

Low to Moderate

Lifespan

Long-lived

Native To

Sonoma County, California

Toxicity

Non-toxic

Bloom period

Winter – Spring

In flower about 6 months of the year

Planting

How to Grow

Select a planting site with full sun to very light partial shade and excellent air circulation.
Dig a hole twice as wide as the root ball but equal in depth, ensuring the crown sits slightly above the surrounding soil level.
Backfill with native soil without adding organic amendments or fertilizers, tamping lightly to remove air pockets.
Water deeply immediately after planting to settle the soil, then establish a minimal watering schedule until the root system is established.

Pro Tip

Avoid summer watering once established, as warm, wet soils trigger fatal Phytophthora root rot. If irrigation is necessary, apply water deeply and infrequently at the drip line during cool morning hours.

Keep It Thriving

Care Guide

Do

Plant on a slope or in mounded soil to ensure rapid water runoff away from the crown.
Prune lightly in late summer during dry weather to shape or remove dead wood.
Mulch with a thin layer of gravel or coarse wood chips, keeping it clear of the main stem.

Don't

Do not overwater during the hot summer months, as this encourages soil-borne pathogens.
Do not shear the shrub into formal shapes or cut back into old, leafless wood.
Do not apply high-nitrogen synthetic fertilizers, which cause weak, disease-prone growth.

Seasonal Care Calendar

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

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

HedgeSpecimen PlantingErosion ControlRock Garden

Companion Plants

Ceanothus thyrsiflorus Salvia clevelandii Quercus agrifolia Eriogonum fasciculatum

Multiply

Propagation Methods

Good to Know

Common Questions

Vine Hill Manzanita questions

What zones can Vine Hill Manzanita grow in?

Vine Hill Manzanita is hardy in USDA Zones 7–9. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.

Is Vine Hill Manzanita deer resistant?

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

When does Vine Hill Manzanita bloom?

Vine Hill Manzanita typically blooms in winter through spring. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.

Does Vine Hill Manzanita need full sun?

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

Is Vine Hill Manzanita drought tolerant?

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