North America Native Plant

San Antonio Hills Monardella

Botanical name: Monardella antonina

USDA symbol: MOAN

Life cycle: perennial

Habit: subshrub

Native status: Native to the lower 48 states  

San Antonio Hills Monardella: A Rare California Native Worth Discovering If you’re a collector of rare California native plants or someone who loves to grow the unusual and hard-to-find, San Antonio Hills monardella (Monardella antonina) might just be the perfect addition to your garden. This perennial herb is one of ...

San Antonio Hills Monardella: A Rare California Native Worth Discovering

If you’re a collector of rare California native plants or someone who loves to grow the unusual and hard-to-find, San Antonio Hills monardella (Monardella antonina) might just be the perfect addition to your garden. This perennial herb is one of those special plants that doesn’t get much attention in mainstream gardening circles, but that’s exactly what makes it so intriguing for native plant enthusiasts.

What Makes This Plant Special?

San Antonio Hills monardella is a true California native, found naturally in the Golden State’s diverse landscapes. As a member of the mint family, this perennial forb brings that characteristic aromatic quality that makes Monardella species so beloved by those in the know. While it may not have the flashy blooms of some garden favorites, it offers something much more valuable: authenticity and a direct connection to California’s natural heritage.

Where Does It Come From?

This native beauty calls California home, specifically the San Antonio Mountains region of Southern California. It’s a plant that has adapted to the unique climate and growing conditions of this area, making it a true representation of local flora.

Growing San Antonio Hills Monardella: The Basics

Here’s where things get a bit challenging – and exciting! Since Monardella antonina is not commonly cultivated, there’s limited specific growing information available. However, we can draw from what we know about its close relatives in the Monardella genus to give you the best shot at success.

Ideal Growing Conditions

Based on its native habitat and family characteristics, San Antonio Hills monardella likely thrives in:

  • Well-draining soils (essential for most California natives)
  • Full sun to partial shade locations
  • Low to moderate water requirements once established
  • USDA hardiness zones 8-10 (estimated based on its California range)

Garden Design Ideas

This plant would be perfect for:

  • Native plant collections and specialty gardens
  • Rock gardens and xeriscaping projects
  • Wildlife-friendly landscapes
  • Educational gardens showcasing rare California flora

The Challenge (And the Reward)

Let’s be honest – growing San Antonio Hills monardella isn’t going to be as straightforward as planting a lavender or rosemary. This is a plant for the dedicated native gardener who enjoys the challenge of cultivating something truly special. You’ll need to:

  • Source seeds or plants from reputable native plant nurseries (and be patient – availability may be limited)
  • Research specific growing requirements as more information becomes available
  • Connect with other native plant enthusiasts who may have experience with rare Monardella species

Supporting California’s Natural Heritage

By choosing to grow San Antonio Hills monardella, you’re doing more than just adding an unusual plant to your garden. You’re supporting California’s biodiversity and helping preserve genetic diversity of native species. Even if this plant never becomes a garden center staple, dedicated gardeners like you help ensure these special species don’t disappear from cultivation entirely.

The Bottom Line

San Antonio Hills monardella isn’t for every gardener, and that’s okay. If you’re looking for instant gratification or guaranteed success, you might want to start with more common California natives like ceanothus or penstemon. But if you’re the type of gardener who gets excited about growing something rare and contributing to native plant conservation, this little-known gem could be exactly what your garden needs.

Remember, the most rewarding gardens often include plants that challenge us to learn and grow alongside them. San Antonio Hills monardella offers exactly that opportunity – a chance to be part of something special in the world of California native plants.

San Antonio Hills Monardella

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

Lamiales

Family

Lamiaceae Martinov - Mint family

Genus

Monardella Benth. - monardella

Species

Monardella antonina Hardham - San Antonio Hills monardella

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