North America Native Plant

Inland Muilla

Botanical name: Muilla transmontana

USDA symbol: MUTR

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Inland Muilla: A Delicate Desert Gem for Your Native Garden If you’re looking to add a touch of understated elegance to your drought-tolerant garden, meet the inland muilla (Muilla transmontana). This charming little perennial might not win any showiest flower contests, but it brings a quiet beauty and ecological value ...

Rare plant alert!

Region: Conservation status by state

Status: S3S4: 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 ⚘ Apparently Secure: Uncommon but not rare, and usually widespread. Possibly cause for longterm concern. Typically more than 100 occurrences in the state or more than 10,000 individuals ⚘

Inland Muilla: A Delicate Desert Gem for Your Native Garden

If you’re looking to add a touch of understated elegance to your drought-tolerant garden, meet the inland muilla (Muilla transmontana). This charming little perennial might not win any showiest flower contests, but it brings a quiet beauty and ecological value that makes it a worthy addition to the right garden setting.

What Exactly Is Inland Muilla?

Inland muilla is a native perennial forb – essentially a non-woody herbaceous plant that comes back year after year. Think of it as nature’s version of a delicate wildflower that’s perfectly adapted to life in some pretty tough conditions. It grows from small bulbs and produces slender, grass-like leaves topped with clusters of tiny white flowers that dance on thin stems.

This little beauty calls California and Nevada home, thriving in the sandy and gravelly soils of desert and semi-arid regions. It’s a true native of the American West, specifically adapted to the lower 48 states.

Why Consider Inland Muilla for Your Garden?

Here’s where things get interesting. Inland muilla has a conservation status of S3S4, which suggests it may face some population pressures in the wild. This makes it an excellent candidate for native gardening – you’ll be supporting local biodiversity while creating habitat in your own backyard.

The Good Reasons to Plant It:

  • Supports native pollinators, particularly small native bees
  • Extremely drought-tolerant once established
  • Perfect for xeriscape and water-wise gardens
  • Low maintenance and naturally pest-resistant
  • Adds delicate texture to rock gardens and naturalized areas
  • True native plant that belongs in your regional ecosystem

The Challenges to Consider:

  • Not particularly showy – better for naturalistic than formal gardens
  • Goes dormant in summer, leaving gaps in your garden
  • Can be difficult to source due to its conservation status
  • Specific growing requirements that don’t suit all garden styles

Where Does Inland Muilla Shine?

This plant is absolutely perfect for desert gardens, rock gardens, and xeriscape designs. It’s ideally suited for USDA hardiness zones 8-10, where it can handle both the heat and the occasional cold snap. Think of it as the perfect companion for other drought-tolerant natives, where its delicate flowers can provide contrast to bolder, more architectural plants.

Inland muilla works beautifully in naturalized areas where you want to recreate a bit of native desert magic. It’s not the plant for formal borders or high-water gardens – it much prefers to blend into a more natural setting.

Growing Inland Muilla Successfully

The key to success with inland muilla is understanding that it’s adapted to a very specific lifestyle. Here’s how to keep it happy:

Planting Requirements:

  • Soil: Well-draining, sandy or gravelly soil is essential – soggy soil will kill the bulbs
  • Sun: Full sun exposure
  • Water: Minimal water once established; follows natural desert rainfall patterns
  • Timing: Plant bulbs in fall for spring blooms

Care Tips:

  • Water sparingly and allow soil to dry between waterings
  • Respect its summer dormancy period – don’t try to keep it green year-round
  • Avoid fertilizing – it’s adapted to nutrient-poor soils
  • Protect bulbs from excessive winter moisture

A Word About Responsible Sourcing

Given inland muilla’s conservation status, it’s crucial to source plants or bulbs only from reputable nurseries that propagate their stock rather than wild-collect. Never collect plants from wild populations – instead, look for specialty native plant nurseries or participate in seed exchanges with other native plant enthusiasts.

The Bottom Line

Inland muilla isn’t for every garden or every gardener. If you’re looking for bold color and non-stop blooms, you’ll want to look elsewhere. But if you’re creating a water-wise native garden and appreciate subtle beauty, this little desert gem might be exactly what you need. It’s a plant that rewards patience and understanding, offering both ecological benefits and a connection to the unique beauty of the American Southwest.

Just remember: grow it right, source it responsibly, and enjoy the quiet satisfaction of nurturing a piece of native California and Nevada desert in your own backyard.

Inland Muilla

Classification

Group

Monocot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Liliopsida - Monocotyledons

Subclass

Liliidae

Order

Liliales

Family

Liliaceae Juss. - Lily family

Genus

Muilla S. Watson ex Benth. - muilla

Species

Muilla transmontana Greene - inland muilla

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