Manzanita
Arctostaphylos densiflora. Family Ericaceae. Shrub.
Also called Vine Hill manzanita, Dense-flowered manzanita.
This evergreen shrub from Sonoma County, California, has small leathery leaves, reddish-brown peeling bark and clusters of winter-to-spring flowers. Gardeners grow it for its branching structure and drought tolerance; it performs best where summers are relatively dry and the soil drains freely.
At a glance
- Sun
- Full sun to light partial shade; give it afternoon shade in very hot inland gardens.
- Water
- Water regularly during establishment, allowing the soil to dry between waterings. Established plants need little summer water in suitable climates and dislike frequent irrigation.
- Soil
- Well-drained sandy, gravelly or loamy soil, preferably acidic to neutral. Avoid waterlogged ground, rich amendments and heavily irrigated beds.
- Height
- 2-3 ft (0.6-0.9 m); some garden selections grow considerably taller
- Spread
- 3-6 ft (0.9-1.8 m), depending on selection and conditions
- Flowers
- Late winter to spring; dense clusters of small, urn-shaped, pale pink to white flowers.
- Foliage
- Evergreen. Small, oval, leathery green leaves held densely on branching stems; mature branches develop smooth reddish-brown bark.
- Growth
- Slow to moderate
- Care needed
- Low
Care
- Plant in autumn where winters are mild, or in spring where cold or winter wet is a concern.
- Water deeply through the first dry season, letting the root zone partly dry before watering again.
- Once established, avoid frequent summer watering; keep lawn irrigation away from the roots.
- Do not routinely fertilize or enrich the planting hole with compost.
- Use a light gravel or coarse bark mulch, keeping it clear of the main stems.
- Avoid digging beneath established plants or disturbing their roots.
Pruning. After flowering, lightly shorten wayward young shoots and remove dead or damaged branches during dry weather. Avoid shearing or cutting hard into old, leafless wood, which may not regrow.
Through the year
- Winter
- Enjoy the early flowers and check that rainwater drains away from the root zone.
- Spring
- After flowering, remove dead wood and make only light shaping cuts.
- Late spring
- Check soil moisture around recently planted shrubs and water deeply if the root zone is drying.
- Summer
- Keep established plants out of routine irrigation cycles; inspect for dieback or lace bug damage.
- Late summer
- Take semi-ripe cuttings if you want to propagate a particular garden selection.
- Autumn
- Plant in mild-winter regions and renew a thin mulch layer without covering the stem bases.
In the garden
- Use as a low evergreen anchor in a California-native border with ceanothus and native sages.
- Plant on a sunny, freely draining slope to provide year-round cover and flowering interest.
- Set beside a gravel path where its bark and branching can be seen at close range.
- Combine with drought-tolerant grasses and perennials in an informal Mediterranean-style garden.
Garden styles it suits: California native, Mediterranean, Dry gravel garden, Desert / xeriscape, Wildlife garden and Winter interest.
Plant it with: California lilac, Cleveland sage, California fuchsia, Deer grass, California buckwheat and Douglas iris.
Wildlife: Flowers provide nectar and pollen for bees, including bumblebees active in cool weather. Birds and small mammals eat the reddish-brown fruits, and the evergreen growth provides shelter.
Problems to watch for
- Root and crown rot: wet soil and frequent summer irrigation can cause decline or death. Improve drainage before planting, keep the crown uncovered and reduce irrigation.
- Branch dieback: drought stress, root trouble or fungal cankers can kill individual stems. Remove affected wood in dry weather, disinfect tools between cuts and check drainage and watering.
- Manzanita lace bugs: pale stippling on leaves, with dark specks beneath, can indicate feeding. Inspect leaf undersides, conserve predatory insects and use a labelled insecticidal soap only if damage warrants treatment; avoid spraying flowers.
- Poor recovery after hard pruning: old bare branches often fail to reshoot. Shape lightly while growth is young rather than cutting an overgrown shrub back severely.
Safety
Not known to be toxic to people, cats, dogs or horses. Species-specific safety information is limited, so do not treat the leaves, bark or fruits as pet food or encourage children to eat them.
Easily confused with
Common manzanita (Arctostaphylos manzanita)
Usually becomes a much larger shrub or small tree, with larger leaves and a more upright framework than the naturally low-growing Vine Hill manzanita.
Bearberry (Arctostaphylos uva-ursi)
Forms a low, creeping carpet with trailing stems and bright red berries, rather than a distinct woody shrub with exposed reddish branches.
The name
Manzanita means 'little apple' in Spanish, referring to the fruit; Arctostaphylos means 'bear grape' in Greek, and densiflora means 'densely flowered'.
Propagation. Take semi-ripe cuttings in late summer or autumn and root them in a freely draining medium, usually with rooting hormone. Success can be variable. Seed has complex dormancy and is not a straightforward home propagation method; named selections should be propagated by cuttings.
Checked against open data
- Accepted botanical name
- Arctostaphylos densiflora
- In the US and Canada
- Native in the lower 48 states.
- Native range
- California.
Sources: GBIF (CC BY 4.0), USDA PLANTS and Trefle (CC BY 4.0). The care and design notes are LandscapeGPT's own.
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