North America Native Plant

Woolly Marsh Elder

Botanical name: Leuciva dealbata

USDA symbol: LEDE23

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Synonyms: Iva dealbata A. Gray (IVDE)   

Woolly Marsh Elder: A Rare Native Forb for Southwestern Gardens If you’re on the hunt for truly unique native plants for your southwestern garden, you might have stumbled across the woolly marsh elder (Leuciva dealbata). This lesser-known native perennial is about as mysterious as plants get – and that’s both ...

Woolly Marsh Elder: A Rare Native Forb for Southwestern Gardens

If you’re on the hunt for truly unique native plants for your southwestern garden, you might have stumbled across the woolly marsh elder (Leuciva dealbata). This lesser-known native perennial is about as mysterious as plants get – and that’s both intriguing and a bit concerning for us plant enthusiasts!

What Is Woolly Marsh Elder?

Woolly marsh elder is a native perennial forb, which basically means it’s a soft-stemmed herbaceous plant (no woody stems here!). Unlike shrubs or trees, this plant dies back to the ground each winter and re-emerges from underground buds come spring. You might also see it listed under its synonym, Iva dealbata A. Gray, in some older botanical references.

Where Does It Grow Naturally?

This native beauty calls the American Southwest home, specifically thriving in Arizona, New Mexico, and Texas. As a plant native to the lower 48 states, it’s perfectly adapted to the unique climate challenges these regions present.

Should You Plant Woolly Marsh Elder?

Here’s where things get a bit tricky. While woolly marsh elder is undeniably native and theoretically a great choice for southwestern native gardens, there’s a catch – information about this plant is remarkably scarce. This scarcity raises some red flags:

  • The plant may be extremely rare in the wild
  • It could be difficult to source from reputable nurseries
  • Growing requirements and care instructions are not well-documented
  • Its role in garden ecosystems is poorly understood

The Challenge of Growing Woolly Marsh Elder

Without detailed information about this plant’s preferred growing conditions, USDA hardiness zones, or care requirements, successfully cultivating woolly marsh elder becomes a gardening adventure with uncertain outcomes. We simply don’t have enough reliable data about:

  • Preferred soil types and drainage needs
  • Sun exposure requirements
  • Water needs and drought tolerance
  • Mature size and growth rate
  • Pollinator benefits and wildlife value
  • Propagation methods

A Word of Caution

Given the limited information available, woolly marsh elder might be a rare species that should be left undisturbed in its natural habitat. If you’re absolutely determined to grow this plant, please ensure you source it only from reputable nurseries that propagate their stock rather than collecting from wild populations.

Better Alternatives for Your Native Garden

Instead of gambling with the mysterious woolly marsh elder, consider these well-documented native alternatives for southwestern gardens:

  • Desert marigold (Baileya multiradiata) – bright yellow blooms and excellent pollinator plant
  • Ghost plant (Graptopetalum paraguayense) – stunning succulent for dry gardens
  • Penstemon species – colorful native wildflowers perfect for xeriscaping
  • Desert willow (Chilopsis linearis) – graceful native tree with orchid-like flowers

The Bottom Line

While woolly marsh elder represents the fascinating diversity of our native flora, sometimes the most responsible choice is to admire rare plants from afar. Until more information becomes available about its cultivation requirements and conservation status, you might want to stick with better-known native species that will thrive in your garden while supporting local ecosystems.

Remember, the best native garden is one filled with plants you can successfully grow and that provide real benefits to local wildlife – and for now, woolly marsh elder remains too much of an enigma to recommend with confidence!

Woolly Marsh Elder

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Asteridae

Order

Asterales

Family

Asteraceae Bercht. & J. Presl - Aster family

Genus

Leuciva Rydb. - marsh elder

Species

Leuciva dealbata (A. Gray) Rydb. - woolly marsh elder

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