North America Native Plant

Santa Cruz Island Manzanita

Botanical name: Arctostaphylos tomentosa subcordata

USDA symbol: ARTOS

Life cycle: perennial

Habit: shrub

Native status: Native to the lower 48 states  

Synonyms: Arctostaphylos subcordata Eastw. (ARSU9)   

Santa Cruz Island Manzanita: A Rare California Native Worth Protecting If you’re passionate about native plants and conservation, the Santa Cruz Island manzanita (Arctostaphylos tomentosa subcordata) might just capture your heart. This distinctive shrub represents one of California’s botanical treasures, though finding it for your garden requires a bit more ...

Rare plant alert!

Region: Conservation status by state

Status: S4T3: Status is uncertain but is somewhere between the following rankings: Subspecies or variety is vulnerable: Either very rare and local throughout its range, found only in a restricted range (even if abundant at some locations), or factors are making it vulnerable to extinction. Typically 21 to 100 occurrences or between 3,000 and 10,000 individuals. ⚘ Apparently Secure: Uncommon but not rare, and usually widespread. Possibly cause for longterm concern. Typically more than 100 occurrences in the state or more than 10,000 individuals ⚘

Santa Cruz Island Manzanita: A Rare California Native Worth Protecting

If you’re passionate about native plants and conservation, the Santa Cruz Island manzanita (Arctostaphylos tomentosa subcordata) might just capture your heart. This distinctive shrub represents one of California’s botanical treasures, though finding it for your garden requires a bit more effort than your typical nursery run.

What Makes This Manzanita Special?

The Santa Cruz Island manzanita is a perennial shrub that belongs to the beloved manzanita family, known for their distinctive reddish bark and evergreen foliage. As a true California native, this plant has evolved specifically to thrive in the Golden State’s unique climate and growing conditions.

Like other manzanitas, this subspecies typically develops into a multi-stemmed woody shrub, usually staying under 13-16 feet tall. Its growth habit creates an attractive, naturalistic form that works beautifully in Mediterranean-style landscapes and native plant gardens.

Where Does It Come From?

This manzanita calls California home, with its common name suggesting a connection to Santa Cruz Island. As a native species, it’s perfectly adapted to local conditions and supports the regional ecosystem in ways that non-native plants simply can’t match.

A Word of Caution: Rarity Matters

Here’s something important to know before you start planning: Santa Cruz Island manzanita has a Global Conservation Status of S4T3, indicating it has some conservation concerns. This means that while you can grow it in your garden, you’ll want to be extra mindful about sourcing.

Always purchase from reputable native plant nurseries that propagate their plants responsibly rather than collecting from wild populations. This ensures you’re supporting conservation efforts rather than potentially harming wild communities.

Why Choose This Native Beauty?

Growing native plants like Santa Cruz Island manzanita offers several compelling benefits:

  • Supports local wildlife and ecosystems
  • Adapted to local climate conditions, potentially requiring less water and care
  • Helps preserve California’s botanical heritage
  • Creates authentic regional landscape character
  • Contributes to biodiversity conservation

Garden Design Ideas

This manzanita works wonderfully in:

  • Native plant gardens
  • Mediterranean-style landscapes
  • Drought-tolerant garden designs
  • Wildlife habitat gardens
  • Naturalistic landscape settings

Growing Tips and Care

While specific growing information for this subspecies is limited, manzanitas generally prefer:

  • Well-draining soil (they hate wet feet!)
  • Full sun to partial shade
  • Minimal summer water once established
  • Good air circulation
  • Protection from harsh winds in exposed locations

Like most California natives, established manzanitas are remarkably drought-tolerant and often perform better with minimal irrigation during dry months.

The Bottom Line

Santa Cruz Island manzanita offers native plant enthusiasts a chance to grow something truly special while contributing to conservation efforts. Just remember to source responsibly and give this beautiful shrub the well-draining conditions it craves.

If you can’t locate this specific subspecies, consider exploring other native manzanita species that might be more readily available in your area. Each one offers its own unique beauty while providing the same ecological benefits that make native plants such valuable garden additions.

Santa Cruz Island Manzanita

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Dilleniidae

Order

Ericales

Family

Ericaceae Juss. - Heath family

Genus

Arctostaphylos Adans. - manzanita

Species

Arctostaphylos tomentosa (Pursh) Lindl. - woollyleaf manzanita

Plant data source: USDA, NRCS 2025. The PLANTS Database. https://plants.usda.gov,. 2/25/2025. National Plant Data Team, Greensboro, NC USA