North America Native Plant

Idaho Stonecrop

Botanical name: Sedum valens

USDA symbol: SEVA5

Life cycle: biennial

Habit: forb

Native status: Native to the lower 48 states  

Idaho Stonecrop: A Hidden Gem Among Native Succulents Meet Idaho stonecrop (Sedum valens), one of the more mysterious members of the beloved stonecrop family. While most gardeners are familiar with common sedums that grace rock gardens and green roofs everywhere, this particular native species flies a bit under the radar ...

Idaho Stonecrop: A Hidden Gem Among Native Succulents

Meet Idaho stonecrop (Sedum valens), one of the more mysterious members of the beloved stonecrop family. While most gardeners are familiar with common sedums that grace rock gardens and green roofs everywhere, this particular native species flies a bit under the radar – and that might just make it all the more special for adventurous native plant enthusiasts.

What Makes Idaho Stonecrop Special?

Idaho stonecrop is a true American native, belonging exclusively to the lower 48 states and calling Idaho home. As a biennial forb, this plant has a unique two-year life cycle that sets it apart from many of its perennial stonecrop cousins. In its first year, it focuses on establishing roots and foliage, then flowers and sets seed in its second year before completing its life cycle.

Like other members of the Sedum family, Idaho stonecrop is a succulent forb – meaning it’s an herbaceous plant with fleshy, water-storing leaves rather than woody stems. This gives it that characteristic plump, jade-like appearance that makes stonecrops so appealing in drought-tolerant gardens.

Where You’ll Find It Growing Wild

This stonecrop is endemic to Idaho, making it a true regional specialty. Its limited native range makes it particularly valuable for gardeners in the region who want to create authentic native plant communities.

Why Consider Growing Idaho Stonecrop?

While information about this specific species is limited, there are several compelling reasons to consider adding Idaho stonecrop to your native plant palette:

  • Regional authenticity: If you’re gardening in Idaho, this plant represents the true native flora of your area
  • Drought tolerance: Like other stonecrops, it’s likely well-adapted to dry conditions
  • Low maintenance: Succulents generally require minimal care once established
  • Unique life cycle: The biennial habit adds seasonal interest and natural succession to gardens
  • Conservation value: Growing native species helps support local ecosystems

Growing Conditions and Care

While specific growing requirements for Idaho stonecrop aren’t well-documented, we can make educated assumptions based on its stonecrop family characteristics and Idaho’s climate:

Soil: Well-draining soil is absolutely essential. Like most succulents, Idaho stonecrop likely prefers sandy or rocky soils that don’t hold excess moisture.

Sunlight: Most stonecrops thrive in full sun to partial shade, and this species likely follows suit.

Water: Once established, it should be quite drought-tolerant, requiring minimal supplemental watering.

Climate: Being native to Idaho, it’s adapted to that region’s temperature ranges and seasonal patterns.

Garden Design and Landscape Use

Idaho stonecrop would likely excel in:

  • Native plant gardens focused on Idaho flora
  • Rock gardens and xeriscapes
  • Areas with poor, well-draining soil where other plants struggle
  • Naturalized areas that mimic local wild spaces

A Word of Caution: Sourcing Responsibly

Given Idaho stonecrop’s limited range and the scarcity of information about it, this may be a species of conservation concern. If you’re interested in growing it, be sure to source plants or seeds only from reputable native plant nurseries that propagate their own stock rather than wild-collecting. Never collect plants or seeds from wild populations.

The Bottom Line

Idaho stonecrop represents an intriguing opportunity for native plant enthusiasts, particularly those gardening in Idaho. While we’d love to know more about its specific requirements and characteristics, its native status and succulent nature suggest it could be a valuable addition to appropriate gardens. Just remember to source it responsibly and be patient with its biennial growth pattern – good things come to those who wait!

If you can’t locate Idaho stonecrop or want additional native options, consider other native sedums or drought-tolerant natives from your region. The goal is always to support local ecosystems while creating beautiful, sustainable landscapes.

Idaho 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 valens Björk - Idaho stonecrop

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