North America Native Plant

Jones’ False Cloak Fern

Botanical name: Argyrochosma jonesii

USDA symbol: ARJO2

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Synonyms: Cheilanthes jonesii (Maxon) Munz (CHJO2)  âš˜  Notholaena jonesii Maxon (NOJO)  âš˜  Pellaea jonesii (Maxon) Morton (PEJO3)   

Jones’ False Cloak Fern: A Hidden Gem for Rock Garden Enthusiasts Meet Jones’ false cloak fern (Argyrochosma jonesii), a charming little native that’s about as far from your typical garden fern as you can get. While most ferns love moisture and shade, this southwestern beauty has adapted to life in ...

Jones’ False Cloak Fern: A Hidden Gem for Rock Garden Enthusiasts

Meet Jones’ false cloak fern (Argyrochosma jonesii), a charming little native that’s about as far from your typical garden fern as you can get. While most ferns love moisture and shade, this southwestern beauty has adapted to life in the desert’s rocky crevices, making it a fascinating addition for gardeners who love a challenge.

What Makes This Fern Special?

Don’t let the name fool you – Jones’ false cloak fern is a true fern, just one that’s learned to thrive where most of its cousins would wither away. This perennial native creates small, delicate rosettes with fronds that showcase silvery-white undersides, giving it an almost ethereal appearance when the wind catches them just right.

You might also encounter this plant under its scientific synonyms: Cheilanthes jonesii, Notholaena jonesii, or Pellaea jonesii, depending on which botanical reference you’re consulting. The world of fern taxonomy can be a bit of a moving target!

Where Does It Call Home?

This native beauty calls the American Southwest home, naturally occurring across Arizona, California, Nevada, and Utah. It’s perfectly adapted to the harsh, arid conditions of this region, tucking itself into rocky outcrops and cliff faces where it can find just enough shelter and moisture to thrive.

Is Jones’ False Cloak Fern Right for Your Garden?

Here’s the honest truth: this isn’t a plant for everyone. If you’re looking for lush, tropical-looking foliage to fill shady borders, keep looking. But if you’re drawn to unique, specialized plants that tell a story of adaptation and resilience, Jones’ false cloak fern might just steal your heart.

You’ll love this fern if you:

  • Enjoy rock gardening and xeriscaping
  • Appreciate subtle, understated beauty
  • Like collecting unusual native plants
  • Have well-draining, rocky soil conditions
  • Live in USDA zones 7-10

This might not be your plant if you:

  • Want fast-growing, dramatic foliage
  • Have heavy, clay soil that stays moist
  • Prefer low-maintenance plants (this one has specific needs)
  • Live in areas with high humidity and frequent rainfall

Creating the Perfect Home for Your Fern

Success with Jones’ false cloak fern is all about mimicking its natural habitat. Think rocky, think dry, think well-drained – basically the opposite of what most people associate with fern growing conditions.

Ideal growing conditions:

  • Soil: Extremely well-draining, rocky or sandy soil
  • Light: Partial shade to filtered sunlight
  • Water: Low water requirements; drought-tolerant once established
  • Placement: Rock crevices, raised beds, or containers with excellent drainage

Planting and Care Tips

The golden rule with Jones’ false cloak fern? When in doubt, don’t water. This plant is far more likely to suffer from too much moisture than too little.

Planting: Choose a spot that mimics a rocky outcrop – perhaps between boulders in a rock garden or in a specially prepared crevice garden. Ensure the soil drains quickly after any rainfall.

Ongoing care: Less is definitely more with this species. Water sparingly, if at all, once established. In areas with wet winters, consider providing some overhead protection to prevent root rot.

The Bottom Line

Jones’ false cloak fern isn’t your typical garden plant, and that’s exactly what makes it special. For the right gardener – someone who appreciates native plants and enjoys the challenge of growing something truly unique – this little fern can be a rewarding addition to a specialized rock or desert garden. Just remember: respect its need for excellent drainage, and it might just surprise you with its quiet beauty and remarkable resilience.

While it won’t provide nectar for pollinators like flowering plants do, it adds ecological value as a native species and brings a touch of the wild Southwest to your carefully curated landscape.

Jones’ False Cloak Fern

Classification

Group

Fern

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision
Division

Pteridophyta - Ferns

Subdivision
Class

Filicopsida

Subclass
Order

Polypodiales

Family

Pteridaceae E.D.M. Kirchn. - Maidenhair Fern family

Genus

Argyrochosma (Sm.) Windham - false cloak fern

Species

Argyrochosma jonesii (Maxon) Windham - Jones' false cloak fern

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