North America Native Plant

Coast Range Stonecrop

Botanical name: Sedum radiatum depauperatum

USDA symbol: SERAD

Life cycle: annual

Habit: forb

Native status: Native to the lower 48 states  

Synonyms: Amerosedum radiatum (S. Watson) Á. Löve & D. Löve ssp. depauperatum (R.T. Clausen) Á. Löve & D. Löve (AMRAD)   

Coast Range Stonecrop: A Rare Native Gem for Pacific Coast Gardens Meet the Coast Range stonecrop (Sedum radiatum depauperatum), a charming little native succulent that’s perfectly suited for gardeners along the Pacific Coast who want to embrace their region’s natural heritage. This petite annual forb might not be the showiest ...

Rare plant alert!

Region: Conservation status by state

Status: S5T3Q: Status is uncertain but is somewhere between the following rankings: Uncertain taxonomy: ⚘ 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. ⚘ Secure: At very low or no risk of extinction in the jurisdiction due to a very extensive range, abundant populations or occurrences, with little to no concern from declines or threats. ⚘

Coast Range Stonecrop: A Rare Native Gem for Pacific Coast Gardens

Meet the Coast Range stonecrop (Sedum radiatum depauperatum), a charming little native succulent that’s perfectly suited for gardeners along the Pacific Coast who want to embrace their region’s natural heritage. This petite annual forb might not be the showiest plant in your garden, but it brings authentic local character and ecological value that’s hard to beat.

What Makes Coast Range Stonecrop Special?

As a true California and Oregon native, Coast Range stonecrop has evolved specifically for the unique conditions of the Pacific Coast ranges. Unlike many garden succulents that hail from far-off lands, this little beauty belongs right here in your local ecosystem. It’s classified as a forb – essentially a soft-stemmed plant without woody tissue – and completes its entire life cycle in just one growing season.

Where Does It Naturally Grow?

Coast Range stonecrop calls the coastal ranges of California and Oregon home, where it has adapted to the region’s distinctive climate patterns and soil conditions. You’ll find it naturally occurring in these mountainous areas, thriving in the specific microclimates that define the Pacific Coast’s inland ranges.

A Word About Rarity

Important note for conscious gardeners: Coast Range stonecrop has a conservation status that suggests it may be uncommon in parts of its range. If you’re interested in growing this native beauty, please ensure you source seeds or plants from reputable native plant nurseries that collect responsibly and don’t impact wild populations. Never collect from the wild – let’s keep this special plant thriving in its natural habitat for future generations to enjoy.

Why Grow Coast Range Stonecrop?

Here’s why this little native might deserve a spot in your garden:

  • True regional native: Supports local ecosystems and provides authentic habitat
  • Low maintenance: As a succulent, it’s naturally drought-tolerant once established
  • Unique character: Adds genuine local flora to your landscape
  • Educational value: Great conversation starter about regional plant conservation
  • Compact size: Perfect for small spaces, rock gardens, or container growing

Where Does It Fit in Your Garden?

Coast Range stonecrop is ideal for gardeners who want to create authentic native plant displays, especially in:

  • Rock gardens and alpine plantings
  • Native plant demonstration gardens
  • Xerophytic (dry) landscape designs
  • Educational or conservation-focused gardens
  • Container gardens featuring regional natives

Growing Coast Range Stonecrop Successfully

While specific cultivation information for this particular stonecrop is limited, you can draw from general sedum growing wisdom combined with its native habitat preferences:

Ideal Growing Conditions:

  • Soil: Well-draining soil is absolutely essential – soggy conditions will spell doom for this succulent
  • Sunlight: Likely prefers full sun to partial shade, typical of most sedums
  • Water: Minimal watering once established; overwatering is more dangerous than drought
  • Climate: Best suited for Pacific Coast climates where it naturally occurs

Planting and Care Tips:

  • Plant in spring after the last frost risk has passed
  • Ensure excellent drainage – consider raised beds or containers if your soil retains moisture
  • Water sparingly and allow soil to dry between waterings
  • As an annual, expect to replant each year or allow it to self-seed if conditions are right
  • Avoid fertilizing – natives typically prefer lean soils

The Bottom Line

Coast Range stonecrop represents a wonderful opportunity to grow a truly local native plant that belongs in Pacific Coast gardens. While it may require some detective work to find responsible sources, growing this rare beauty connects you directly to your region’s natural heritage. Just remember to source ethically and appreciate the special nature of this uncommon native gem.

If you can’t locate Coast Range stonecrop from reputable sources, consider other native Pacific Coast succulents that can provide similar ecological benefits while you continue your search for this special regional treasure.

Coast Range Stonecrop

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Rosidae

Order

Rosales

Family

Crassulaceae J. St.-Hil. - Stonecrop family

Genus

Sedum L. - stonecrop

Species

Sedum radiatum S. Watson - Coast Range stonecrop

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