North America Native Plant

Menzies’ Goldenbush

Botanical name: Isocoma menziesii var. menziesii

USDA symbol: ISMEM

Life cycle: perennial

Habit: subshrub

Native status: Native to the lower 48 states  

Synonyms: Haplopappus venetus (Kunth) S.F. Blake ssp. oxyphyllus (Greene) H.M. Hall (HAVEO)  âš˜  Isocoma oxyphylla Greene (ISOX)  âš˜  Isocoma veneta (Kunth) Greene var. oxyphylla (Greene) R.M. Beauch. (ISVEO)   

Menzies’ Goldenbush: A Golden Treasure for Water-Wise Gardens If you’re looking for a low-maintenance native plant that brings late-season color to your California garden, meet Menzies’ goldenbush (Isocoma menziesii var. menziesii). This delightful little shrub might not win any height contests, but what it lacks in stature, it more than ...

Menzies’ Goldenbush: A Golden Treasure for Water-Wise Gardens

If you’re looking for a low-maintenance native plant that brings late-season color to your California garden, meet Menzies’ goldenbush (Isocoma menziesii var. menziesii). This delightful little shrub might not win any height contests, but what it lacks in stature, it more than makes up for in charm and resilience.

What Is Menzies’ Goldenbush?

Menzies’ goldenbush is a perennial shrub that’s perfectly sized for modern gardens. This native Californian stays compact, typically growing under 1.5 feet tall and rarely exceeding 3 feet at maturity. Don’t let its modest size fool you – this plant packs a punch with its silvery-green foliage and cheerful yellow, daisy-like flowers that bloom when many other plants are calling it quits for the season.

Where Does It Come From?

This golden gem is a true California native, naturally found throughout the state’s coastal regions. It’s perfectly adapted to the Mediterranean climate and thrives in coastal sage scrub and chaparral communities.

Why Your Garden Will Love This Plant

There are plenty of reasons to fall for Menzies’ goldenbush:

  • Late-season bloomer: When other flowers are fading, this plant puts on its show with bright yellow blooms in fall
  • Water-wise wonder: Once established, it’s incredibly drought tolerant – perfect for California’s water-conscious gardening
  • Pollinator magnet: Bees and butterflies absolutely adore the nectar-rich flowers
  • Low maintenance: This is a plant it and forget it kind of shrub
  • Erosion fighter: Its root system helps stabilize soil on slopes

Perfect Garden Situations

Menzies’ goldenbush is ideal for:

  • Mediterranean and drought-tolerant gardens
  • Native plant landscapes
  • Rock gardens and natural areas
  • Slope stabilization projects
  • Wildlife and pollinator gardens

Growing Conditions

This adaptable shrub is surprisingly easy to please:

  • Sunlight: Thrives in full sun
  • Soil: Well-draining soil is essential – it won’t tolerate soggy conditions
  • Water: Drought tolerant once established, but appreciates occasional deep watering
  • Climate: Hardy in USDA zones 9-11, perfect for California’s coastal and inland regions

Planting and Care Tips

Getting your Menzies’ goldenbush off to a great start is straightforward:

  • Best planting time: Fall planting allows roots to establish during the rainy season
  • Spacing: Give each plant about 2-3 feet of space to spread naturally
  • Initial care: Water regularly the first year, then reduce frequency as it establishes
  • Pruning: Light pruning after flowering helps maintain shape, but it’s not strictly necessary
  • Fertilizing: Skip the fertilizer – this native prefers lean soil conditions

A Few Things to Consider

While Menzies’ goldenbush is generally wonderful, keep these points in mind:

  • It’s not suitable for regularly irrigated garden beds
  • The plant may go dormant during extremely dry periods
  • Its compact size means it works better as an accent than a major landscape feature

The Bottom Line

Menzies’ goldenbush is a fantastic choice for gardeners who want to support local ecosystems while creating beautiful, water-wise landscapes. Its combination of drought tolerance, pollinator appeal, and late-season color makes it a valuable addition to any California native garden. Plus, there’s something deeply satisfying about growing a plant that’s been thriving in your region for thousands of years – it’s like welcoming an old friend into your garden.

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