North America Native Plant

Jame’s Rubberweed

Botanical name: Hymenoxys jamesii

USDA symbol: HYJA

Life cycle: biennial

Habit: forb

Native status: Native to the lower 48 states  

Jame’s Rubberweed: A Rare Desert Gem Worth Growing Responsibly If you’re looking to add a touch of southwestern charm to your garden while supporting conservation efforts, Jame’s rubberweed might just be the perfect addition. This little-known native wildflower brings bright yellow blooms and ecological value to desert landscapes, though it ...

Rare plant alert!

Region: Conservation status by state

Status: S2S3: Status is uncertain but is somewhere between the following rankings: Imperiled: Extremely rare due to factor(s) making it especially vulnerable to extinction. Typically 6 to 20 occurrences or few remaining individuals (1,000 to 3,000) ⚘ 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 ⚘

Jame’s Rubberweed: A Rare Desert Gem Worth Growing Responsibly

If you’re looking to add a touch of southwestern charm to your garden while supporting conservation efforts, Jame’s rubberweed might just be the perfect addition. This little-known native wildflower brings bright yellow blooms and ecological value to desert landscapes, though it requires a thoughtful approach to cultivation.

What Is Jame’s Rubberweed?

Jame’s rubberweed (Hymenoxys jamesii) is a charming biennial forb native to the southwestern United States. As a forb, it’s an herbaceous plant without woody stems, completing its life cycle over two growing seasons. Don’t let the rubberweed name fool you – this plant produces lovely yellow daisy-like flowers that add a cheerful pop of color to any native garden.

Where Does It Grow Naturally?

This desert beauty calls the American Southwest home, with documented populations primarily in Arizona. As a native species to the lower 48 states, it has evolved to thrive in the challenging conditions of desert and semi-desert environments.

A Word About Rarity

Here’s something important every gardener should know: Jame’s rubberweed has a conservation status of S2S3, indicating it’s considered rare to uncommon in its natural range. This makes it all the more special to grow, but it also means we need to be responsible about how we source our plants. Always purchase from reputable nurseries that propagate their own stock rather than wild-collect, and never harvest seeds or plants from wild populations.

Why Grow Jame’s Rubberweed?

Despite its rarity in the wild, this plant offers several compelling reasons to include it in your garden:

  • Supports native pollinators like bees and butterflies with its nectar-rich flowers
  • Extremely drought tolerant once established
  • Perfect for rock gardens and xeriscapes
  • Low maintenance requirements
  • Helps preserve a rare native species through cultivation
  • Authentic choice for southwestern and desert-themed landscapes

Ideal Growing Conditions

Jame’s rubberweed thrives in conditions that mimic its natural desert habitat. Here’s what it needs to flourish:

  • Sunlight: Full sun exposure is essential
  • Soil: Well-draining sandy or rocky soils work best
  • Water: Drought tolerant once established; avoid overwatering
  • Climate: Hardy in USDA zones 4-8

Perfect Garden Settings

This compact wildflower shines brightest in:

  • Rock gardens where it can nestle between stones
  • Xeriscape designs focused on water conservation
  • Native plant gardens celebrating regional flora
  • Desert-themed landscapes
  • Natural areas where you want to encourage native species

Planting and Care Tips

Growing Jame’s rubberweed successfully is all about recreating its natural environment:

  • When to plant: Fall planting gives the best results
  • Spacing: Allow adequate space for air circulation
  • Watering: Water sparingly; this plant prefers dry conditions
  • Fertilizing: Generally unnecessary in appropriate soil conditions
  • Maintenance: Minimal care required once established

Supporting Pollinators

One of the best reasons to grow Jame’s rubberweed is its value to native pollinators. The bright yellow flowers attract various bees, butterflies, and other beneficial insects, making your garden a mini wildlife habitat. In our increasingly developed landscape, every native plant we grow helps support struggling pollinator populations.

The Bottom Line

Jame’s rubberweed offers gardeners a unique opportunity to grow a rare native plant while creating beautiful, low-maintenance landscapes. Its drought tolerance and pollinator benefits make it an excellent choice for sustainable gardening. Just remember to source your plants responsibly – by growing this rare species in our gardens, we can help ensure its survival for future generations while enjoying its simple, sunny beauty.

Whether you’re creating a full xeriscape or just want to add some authentic southwestern flair to a rock garden, this little rubberweed deserves serious consideration. It’s proof that some of the most rewarding garden plants are the ones that ask for very little while giving back so much.

Jame’s Rubberweed

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

Hymenoxys Cass. - rubberweed

Species

Hymenoxys jamesii Bierner - Jame's rubberweed

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