North America Native Plant

Thickleaf Monardella

Botanical name: Monardella hypoleuca hypoleuca

USDA symbol: MOHYH

Life cycle: perennial

Habit: subshrub

Native status: Native to the lower 48 states  

Thickleaf Monardella: A Hidden Gem for California Native Gardens If you’re looking to add a touch of California’s wild beauty to your garden, thickleaf monardella (Monardella hypoleuca hypoleuca) might just be the native treasure you’ve been searching for. This charming perennial herb brings authentic local character to landscapes while supporting ...

Rare plant alert!

Region: Conservation status by state

Status: S4S4T2T3T3T4: Status is uncertain but is somewhere between the following rankings: Subspecies or variety is 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) ⚘ Subspecies or variety is 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 ⚘ Subspecies or varieties is apparently secure: Uncommon but not rare, and usually widespread. Possibly cause for longterm concern. Typically more than 100 occurrences in the region or more than 10,000 individuals ⚘

Thickleaf Monardella: A Hidden Gem for California Native Gardens

If you’re looking to add a touch of California’s wild beauty to your garden, thickleaf monardella (Monardella hypoleuca hypoleuca) might just be the native treasure you’ve been searching for. This charming perennial herb brings authentic local character to landscapes while supporting the native ecosystem that once thrived in your area.

What Makes Thickleaf Monardella Special?

Thickleaf monardella is a true California native, found exclusively within the Golden State’s diverse landscapes. As a member of the mint family, this perennial forb offers the reliability of a long-lived plant without the woody growth that can dominate garden spaces. Instead, it maintains a herbaceous character that plays well with other native wildflowers and grasses.

What sets this plant apart is right there in its name – those distinctive thick leaves that help it thrive in California’s Mediterranean climate. Unlike many garden plants that wilt at the first sign of dry conditions, thickleaf monardella has evolved specifically for the feast-or-famine rainfall patterns that define much of California.

Why Choose Thickleaf Monardella for Your Garden?

There are several compelling reasons to consider this native beauty:

  • True California heritage: This plant has been part of California’s natural landscape for thousands of years
  • Low-maintenance perennial: Once established, it returns year after year without replanting
  • Drought-adapted: Those thick leaves aren’t just for show – they help the plant survive dry periods
  • Supports local ecosystems: Native plants provide food and habitat for local wildlife
  • Authentic landscape character: Adds genuine regional flavor to your garden design

Where Does Thickleaf Monardella Fit in Your Landscape?

This versatile native works beautifully in several garden settings:

  • Native plant gardens: A natural choice for authentic California landscapes
  • Water-wise gardens: Perfect for drought-tolerant landscaping
  • Wildlife gardens: Supports local pollinators and beneficial insects
  • Naturalized areas: Great for creating meadow-like spaces

Growing Thickleaf Monardella Successfully

While specific growing requirements for this particular species need further research, most California native Monardella species share similar preferences:

  • Sunlight: Generally prefer full sun to partial shade
  • Soil: Well-draining soil is essential – avoid heavy clay or waterlogged conditions
  • Water: Drought-tolerant once established, but may need occasional summer water in very dry areas
  • Climate: Adapted to California’s Mediterranean climate patterns

Important Considerations

Before adding thickleaf monardella to your garden, keep these points in mind:

  • Source responsibly: Always purchase from reputable native plant nurseries that grow from ethically collected seed
  • Know your location: Since this plant is native only to California, ensure you’re within its natural range
  • Be patient: Native plants often take time to establish but reward you with years of low-maintenance beauty

The Bottom Line

Thickleaf monardella represents the kind of garden plant that connects us to the natural heritage of our landscapes. While it may not have the flashy blooms of hybrid ornamentals, it offers something more valuable – the satisfaction of growing a plant that truly belongs in your local environment.

For California gardeners looking to create authentic, sustainable landscapes that honor the state’s natural beauty, thickleaf monardella deserves serious consideration. Just remember to source your plants responsibly and give them the well-draining conditions they crave.

Your garden – and the local wildlife – will thank you for choosing this genuine California native.

Thickleaf 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 hypoleuca A. Gray - thickleaf monardella

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