# Pacific rhododendron (*Rhododendron macrophyllum*)

The Pacific rhododendron is a beautiful shrub with big, colorful flowers. It grows in forests and brings joy to everyone who sees it in bloom.

- **Category:** [Plants](https://www.snappit.app/explore/categories/plant)
- **Rarity:** Common
- **Danger:** 2/5 · Low
- **Snaps:** 3
- **Habitat:** Forests

![Pacific rhododendron](https://commons.wikimedia.org/w/index.php?title=Special:Redirect/file/Rhododendron_macrophyllum_biscuit_june_2005.jpg&width=800)

Photo: Robert Dunning, CC BY-SA 3.0 · [Wikimedia Commons](https://commons.wikimedia.org/wiki/File:Rhododendron_macrophyllum_biscuit_june_2005.jpg)

## Appearance

The Pacific rhododendron is a large, evergreen shrub featuring thick, leathery leaves. Its showy, bell-shaped flowers bloom in large clusters, typically vibrant pink to rose-purple, sometimes white. The impressive size of its flower trusses makes it stand out.

## Taxonomy

- **Kingdom:** Plantae
- **Phylum:** Tracheophyta
- **Class:** Magnoliopsida
- **Order:** Ericales
- **Family:** Ericaceae
- **Genus:** Rhododendron

## Interesting facts

- It is the official state flower of Washington, chosen for its beauty.
- Its nectar can create "mad honey" which can be toxic to humans!
- Some wild Pacific rhododendrons have been known to live for over 100 years!
- The name "Rhododendron" comes from Greek words meaning "rose tree"!

## Special abilities

- **Evergreen Powerhouse:** Pacific rhododendron has tough, evergreen leaves that help it photosynthesize and grow all year round.
- **Pollinator Beacon:** Pacific rhododendron can attract bees and butterflies with its large, vibrant flower clusters to ensure reproduction.
- **Drought Defender:** Pacific rhododendron has leathery leaves that help reduce water loss, surviving drier conditions.

## Measurements & details

- **Height:** 100-900 cm
- **Spread:** 100-700 cm
- **Flower Size:** 4-7 cm
- **Bloom Season:** Spring to early summer
- **Edible:** No
- **Toxicity:** High
- **Lifecycle:** Perennial
- **Pollination Method:** Insect

## Ecological connections

- **Pollinates:** Western Bumblebee (*Bombus occidentalis*) — collects nectar and pollen
- **Pollinates:** [Western Tiger Swallowtail](https://www.snappit.app/explore/western-tiger-swallowtail) (*Papilio rutulus*) — visits flowers for nectar
- **Eaten by:** [Mule Deer](https://www.snappit.app/explore/mule-deer) (*Odocoileus hemionus*) — may browse leaves, but it's toxic
- **Shelter:** American Black Bear (*Ursus americanus*) — uses dense thickets for cover

## Traits

- [Flowering](https://www.snappit.app/explore/traits/flowering): Flowering plants are any plants that produce flowers as part of their reproductive cycle.
- [Shrub](https://www.snappit.app/explore/traits/shrub): A shrub is a woody plant smaller than a tree, typically with multiple stems branching from or near the ground.
- [Spring Blooming](https://www.snappit.app/explore/traits/spring-blooming): Spring blooming plants produce their flowers during the spring season, often signifying the end of winter and the start of new growth.
- [Evergreen](https://www.snappit.app/explore/traits/evergreen): Evergreen plants retain their foliage throughout the year, never shedding all their leaves at once.
- [Fragrant Flower](https://www.snappit.app/explore/traits/fragrant-flower): Fragrant flowers emit a pleasant aroma, often to attract pollinators or for defense.
- [Colorful](https://www.snappit.app/explore/traits/colorful): Colorful describes organisms or objects displaying a wide range of bright and distinct colors.
- [Pollinator Magnet](https://www.snappit.app/explore/traits/pollinator-magnet): Describes plants that are particularly attractive and beneficial to a wide range of pollinating organisms.
- [Forest](https://www.snappit.app/explore/traits/forest): Forest habitats are terrestrial environments dominated by dense tree cover, supporting a high diversity of plant and animal life.
- [Keystone Species](https://www.snappit.app/explore/traits/keystone-species): Describes a species whose presence and role have a disproportionately large effect on its environment.

## Collections

- [Plants](https://www.snappit.app/explore/collections/plants)

## Safety

**Danger:** 2/5 · Low

Do not eat any part of the plant, as it can be harmful.

## Frequently Asked Questions

### How to identify Pacific rhododendron?

Start with the whole plant, then compare leaf arrangement, leaf edges, stems and any flowers or fruit. Opposite leaves grow in pairs; alternate leaves come one at a time along the stem. These details tell you far more together than a single green leaf does. Plant Identifier: upload a photo and compare the visible details.

### How tall is Pacific rhododendron?

100-900 cm

### How wide does Pacific rhododendron spread?

100-700 cm

### How big are the flowers on Pacific rhododendron?

4-7 cm

### When does Pacific rhododendron bloom?

Spring to early summer

### Is Pacific rhododendron edible?

No

### Is Pacific rhododendron toxic?

High

### What is Pacific rhododendron's lifecycle?

Perennial

## Where to spot

- [Audubon Canyon](https://www.snappit.app/guides/places/audubon-canyon) — California, US · Nature Reserve
- [Oregon Caves National Monument and Preserve](https://www.snappit.app/guides/places/oregon-caves-national-monument-and-preserve) — Oregon, US · National Park
- [Wind River Arboretum](https://www.snappit.app/guides/places/wind-river-arboretum) — Washington, US · Botanical Garden
- [Skagit Valley Provincial Park](https://www.snappit.app/guides/places/skagit-valley-provincial-park) — British Columbia, CA · State Park
- [Twanoh State Park](https://www.snappit.app/guides/places/twanoh-state-park) — Washington, US · State Park

[View all places to see Pacific rhododendron](https://www.snappit.app/guides/where-to-see/pacific-rhododendron)

## More Plants

- [white snakeroot](https://www.snappit.app/explore/white-snakeroot) (*Ageratina altissima*)
- [tree-of-heaven](https://www.snappit.app/explore/tree-of-heaven) (*Ailanthus altissima*)
- [western sword fern](https://www.snappit.app/explore/western-sword-fern) (*Polystichum munitum*)
- [common milkweed](https://www.snappit.app/explore/common-milkweed) (*Asclepias syriaca*)

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Source: [Pacific rhododendron: Facts & Places to See — Snappit](https://www.snappit.app/explore/pacific-rhododendron)
