North America Native Plant

Menzies’ Goldenbush

Botanical name: Isocoma menziesii var. diabolica

USDA symbol: ISMED2

Life cycle: perennial

Habit: subshrub

Native status: Native to the lower 48 states  

Menzies’ Goldenbush: A Rare California Native Worth Knowing If you’re passionate about California native plants and love discovering hidden botanical gems, Menzies’ goldenbush (Isocoma menziesii var. diabolica) might just capture your attention. This little-known variety is a testament to California’s incredible plant diversity, though it’s not exactly what you’d call ...

Rare plant alert!

Region: Conservation status by state

Status: S3S5T3: Status is uncertain but is somewhere between the following rankings: 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 ⚘ 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. ⚘

Menzies’ Goldenbush: A Rare California Native Worth Knowing

If you’re passionate about California native plants and love discovering hidden botanical gems, Menzies’ goldenbush (Isocoma menziesii var. diabolica) might just capture your attention. This little-known variety is a testament to California’s incredible plant diversity, though it’s not exactly what you’d call common garden center fare.

What Makes This Plant Special?

Menzies’ goldenbush is a native California perennial shrub that stays refreshingly compact. Unlike some shrubs that seem determined to take over your entire yard, this variety keeps things modest, typically staying under 1.5 feet tall and never exceeding 3 feet even at full maturity. It’s what gardeners call a low-growing shrub – perfect for those who want native character without the overwhelming presence.

Where Does It Call Home?

This particular variety of Menzies’ goldenbush is exclusively found in California, making it a true Golden State native. As part of the broader group of plants native to the lower 48 states, it represents the kind of regional specialization that makes California’s flora so fascinating.

The Conservation Reality Check

Here’s where things get a bit serious. This variety has a conservation status that puts it in a somewhat uncertain category – it’s not critically endangered, but it’s not exactly thriving everywhere either. This means if you’re interested in growing Menzies’ goldenbush, you’ll want to be extra thoughtful about sourcing.

Important: Only obtain this plant from reputable native plant nurseries that propagate their own stock or from seed collection programs that follow ethical guidelines. Never collect from wild populations.

Is This Plant Right for Your Garden?

The honest truth? We don’t have complete growing information for this specific variety, which tells you something about how uncommon it is in cultivation. However, if you’re the type of gardener who:

  • Loves supporting California’s native biodiversity
  • Enjoys having conversation-starter plants that few people recognize
  • Appreciates compact, manageable shrubs
  • Wants to contribute to conservation through responsible cultivation

Then this might be worth investigating further.

The Growing Challenge

Given the limited information available about this specific variety’s cultivation needs, growing Menzies’ goldenbush would be somewhat of an adventure. Like many California natives, it likely prefers well-draining soil and established drought tolerance once mature, but specific care requirements for this variety aren’t well-documented in standard gardening resources.

If you’re determined to try growing it, your best bet would be connecting with:

  • California native plant societies
  • Specialized native plant nurseries
  • Botanical gardens with California native collections
  • University extension programs focused on native plants

The Bottom Line

Menzies’ goldenbush represents the fascinating diversity of California’s native flora, but it’s definitely not a beginner’s plant or an instant gratification choice. If you’re drawn to rare natives and enjoy the challenge of growing something truly special, it could be a rewarding addition to a collection focused on California endemics.

For most gardeners interested in supporting native biodiversity, there are many other California native shrubs that are easier to source, better understood in cultivation, and equally valuable to local ecosystems. But for the dedicated native plant enthusiast? This little goldenbush might just be the unique specimen you’ve been looking for.

Just remember: with rare plants comes responsibility. If you do manage to grow this variety successfully, consider sharing seeds or cuttings with other responsible native plant enthusiasts to help ensure its continued cultivation and conservation.

Menzies’ Goldenbush

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

Isocoma Nutt. - goldenbush

Species

Isocoma menziesii (Hook. & Arn.) G.L. Nesom - Menzies' goldenbush

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