North America Native Plant

Mustang Clover

Botanical name: Leptosiphon montanus

USDA symbol: LEMO19

Life cycle: annual

Habit: forb

Native status: Native to the lower 48 states  

Synonyms: Linanthus montanus (Greene) Greene (LIMO)   

Mustang Clover: A Charming California Native for Wildflower Gardens If you’re looking to add authentic California charm to your garden, mustang clover (Leptosiphon montanus) might just be the delightful native annual you’ve been searching for. This lesser-known gem belongs to the phlox family and offers gardeners a chance to support ...

Mustang Clover: A Charming California Native for Wildflower Gardens

If you’re looking to add authentic California charm to your garden, mustang clover (Leptosiphon montanus) might just be the delightful native annual you’ve been searching for. This lesser-known gem belongs to the phlox family and offers gardeners a chance to support local ecosystems while enjoying the simple beauty of a true California wildflower.

What Is Mustang Clover?

Mustang clover is a native annual forb that calls California home. Don’t let the name fool you—despite being called clover, this plant isn’t related to the clovers you might find in your lawn. Instead, it’s a member of the Leptosiphon genus, and you might also see it listed under its botanical synonym, Linanthus montanus.

As an annual, mustang clover completes its entire life cycle in one growing season, making it perfect for gardeners who enjoy the changing tapestry of seasonal plantings or those looking to fill gaps in their native plant gardens.

Where Does Mustang Clover Grow?

This charming native is found exclusively in California, making it a fantastic choice for gardeners wanting to create authentic regional landscapes. As a true California native, it’s perfectly adapted to the state’s unique climate patterns and soil conditions.

Why Choose Mustang Clover for Your Garden?

There are several compelling reasons to consider adding mustang clover to your California garden:

  • Native authenticity: Supporting local ecosystems by growing truly native plants
  • Low maintenance: Once established, native annuals typically require minimal care
  • Wildlife support: Native plants provide food and habitat for local wildlife and pollinators
  • Water-wise gardening: California natives are naturally adapted to local rainfall patterns
  • Seasonal interest: Annual plants provide changing displays throughout the growing season

Perfect Garden Settings

Mustang clover works beautifully in several garden styles:

  • Native wildflower meadows: Combine with other California natives for an authentic wildflower display
  • Rock gardens: Its delicate nature complements rocky, well-drained settings
  • Naturalistic landscapes: Perfect for gardeners seeking a more wild, unstructured look
  • Seasonal color spots: Use to fill gaps in perennial beds during its growing season

Growing Mustang Clover Successfully

Like many California natives, mustang clover likely prefers conditions that mimic its natural habitat. Here are some general guidelines for success:

Soil and Drainage

Well-draining soil is essential for most California natives. Heavy, waterlogged soils can be problematic, so consider amending clay soils with sand or gravel, or plant in raised beds.

Watering Needs

As with many California natives, mustang clover likely performs best with minimal summer water once established. Deep, infrequent watering during the growing season should suffice.

Climate Considerations

Being a California native, mustang clover is likely suited to USDA zones 8-10, thriving in Mediterranean-style climates with mild, wet winters and dry summers.

Planting and Care Tips

  • Timing: Sow seeds in fall to align with natural rainfall patterns
  • Soil prep: Ensure good drainage—this is crucial for success
  • Watering: Water gently until established, then reduce frequency
  • Fertilizing: Native plants typically don’t need additional fertilizer
  • Seed collection: Allow some plants to go to seed for natural reseeding

A Note on Sourcing

When looking for mustang clover seeds or plants, seek out reputable native plant nurseries or seed companies that specialize in California natives. This ensures you’re getting true-to-type plants that will perform well in your local conditions.

The Bottom Line

Mustang clover represents the kind of understated beauty that makes California’s native flora so special. While it may not be the showiest plant in your garden, it offers the satisfaction of growing something truly local—a plant that has called California home long before any of us arrived on the scene. For gardeners committed to supporting native ecosystems and creating sustainable landscapes, mustang clover deserves a spot in your wildflower mix.

Remember, every native plant we grow is a small act of conservation, helping to preserve California’s unique botanical heritage for future generations to enjoy.

Mustang Clover

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

Solanales

Family

Polemoniaceae Juss. - Phlox family

Genus

Leptosiphon Benth. - leptosiphon

Species

Leptosiphon montanus (Greene) J.M. Porter & L.A. Johnson - mustang clover

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