North America Native Plant

Washoe Pine

Botanical name: Pinus ponderosa var. washoensis

USDA symbol: PIPOW2

Life cycle: perennial

Habit: tree

Native status: Native to the lower 48 states  

Synonyms: Pinus ponderosa C. Lawson ssp. washoensis (H. Mason & Stockw.) A.E. Murray (PIPOW)  âš˜  Pinus washoensis H. Mason & Stockw. (PIWA)   

Washoe Pine: A Rare Mountain Beauty for Your Landscape If you’re looking to add a touch of high-altitude majesty to your garden, the Washoe pine (Pinus ponderosa var. washoensis) might just be your perfect match. This distinctive variety of the beloved ponderosa pine brings all the classic charm of its ...

Rare plant alert!

Region: Conservation status by state

Status: S3Q: Status is uncertain but is somewhere between the following rankings: Uncertain taxonomy: ⚘ 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 ⚘

Washoe Pine: A Rare Mountain Beauty for Your Landscape

If you’re looking to add a touch of high-altitude majesty to your garden, the Washoe pine (Pinus ponderosa var. washoensis) might just be your perfect match. This distinctive variety of the beloved ponderosa pine brings all the classic charm of its parent species with its own unique mountain character.

What Makes Washoe Pine Special

The Washoe pine is a perennial evergreen tree that can grow to impressive heights of over 13-16 feet, developing into a magnificent specimen with a single trunk. Like its ponderosa pine relatives, it features the characteristic reddish-brown bark that becomes more pronounced with age, creating striking visual interest in any landscape.

You might also encounter this tree under its scientific synonyms: Pinus ponderosa C. Lawson ssp. washoensis or Pinus washoensis, but they all refer to the same remarkable mountain native.

Where Does Washoe Pine Call Home

This native beauty naturally occurs in the mountainous regions of California, Nevada, and Oregon, where it thrives in the cooler, high-elevation conditions. As a native species of the lower 48 states, it’s perfectly adapted to its regional climate and ecosystem.

A Word About Rarity

Here’s something important to know: Washoe pine has a Global Conservation Status of S3Q, indicating it’s considered rare in its native range. While this makes it all the more special to grow, it also means we need to be responsible gardeners. If you decide to plant Washoe pine, make sure you source it from reputable nurseries that propagate responsibly rather than collecting from wild populations.

Why Consider Washoe Pine for Your Landscape

This mountain native brings several appealing qualities to the right garden setting:

  • Impressive size and presence as a specimen tree
  • Beautiful evergreen foliage that provides year-round structure
  • Distinctive bark that adds visual texture and interest
  • Native status supports local ecosystems
  • Once established, relatively low maintenance

Growing Conditions and Care

Washoe pine is best suited for USDA hardiness zones 4-7, thriving in the cooler conditions that mirror its native mountain habitat. This tree performs best in:

  • Full sun locations
  • Well-draining soils
  • Areas with good air circulation
  • Cooler, mountain-like climates

Once established, Washoe pine is quite drought tolerant, though it appreciates consistent moisture during its establishment period. The key to success is providing adequate space – this tree needs room to grow and develop its full natural form.

Landscape Uses

Due to its eventual large size, Washoe pine is best suited for:

  • Large residential properties
  • Mountain or alpine-style gardens
  • Naturalistic landscapes
  • As a specimen tree where it can be the star of the show

This isn’t a tree for small urban gardens or tight spaces, but if you have the room and the right growing conditions, it can become a stunning focal point that connects your landscape to the wild mountain forests where it naturally belongs.

The Bottom Line

Washoe pine is a special tree that deserves consideration from gardeners who have the space and appropriate growing conditions. Its native status and unique mountain character make it a valuable addition to the right landscape. Just remember to source it responsibly and give it the room it needs to thrive. With proper care and the right setting, this rare mountain beauty can become a treasured part of your garden for generations to come.

Washoe Pine

Classification

Group

Gymnosperm

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Coniferophyta - Conifers

Subdivision
Class

Pinopsida

Subclass
Order

Pinales

Family

Pinaceae Spreng. ex Rudolphi - Pine family

Genus

Pinus L. - pine

Species

Pinus ponderosa Lawson & C. Lawson - ponderosa pine

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