North America Native Plant

Siskiyou Monardella

Botanical name: Monardella siskiyouensis

USDA symbol: MOSI3

Life cycle: perennial

Habit: subshrub

Native status: Native to the lower 48 states  

Siskiyou Monardella: A Fragrant Native Gem for Your California Garden If you’re looking to add a touch of wild California beauty to your garden while supporting local pollinators, meet Siskiyou monardella (Monardella siskiyouensis). This delightful little perennial might not be the showiest plant in your native garden, but what it ...

Siskiyou Monardella: A Fragrant Native Gem for Your California Garden

If you’re looking to add a touch of wild California beauty to your garden while supporting local pollinators, meet Siskiyou monardella (Monardella siskiyouensis). This delightful little perennial might not be the showiest plant in your native garden, but what it lacks in size, it more than makes up for in charm and ecological value.

What is Siskiyou Monardella?

Siskiyou monardella is a native California perennial herb that belongs to the mint family. As a forb (that’s gardener-speak for a non-woody flowering plant), it stays relatively low to the ground and produces clusters of small, tubular flowers that range from purple to pink. Like many plants in the mint family, it’s wonderfully aromatic – brush against it on a warm day and you’ll be rewarded with a pleasant, herby fragrance.

This hardy little native is endemic to California, specifically calling the Siskiyou Mountains region of northern California home. Being a true California native means it’s perfectly adapted to the state’s Mediterranean climate and can thrive with minimal fuss once established.

Why Plant Siskiyou Monardella in Your Garden?

There are several compelling reasons to consider adding this native beauty to your landscape:

  • Pollinator magnet: The nectar-rich flowers attract bees, butterflies, and other beneficial insects, making it an excellent choice for pollinator gardens
  • Low maintenance: Once established, it’s drought tolerant and requires minimal care
  • Native plant benefits: Supporting local ecosystems by providing food and habitat for native wildlife
  • Aromatic foliage: The pleasant fragrance adds a sensory element to your garden
  • Unique character: Adds authentic California native plant appeal to your landscape

Where Does Siskiyou Monardella Shine?

This adaptable native works beautifully in several garden settings:

  • Rock gardens: Its low-growing habit and drought tolerance make it perfect for tucking between rocks
  • Native plant gardens: An authentic addition to California native landscapes
  • Pollinator gardens: Provides valuable nectar sources for beneficial insects
  • Drought-tolerant landscapes: Excellent for water-wise gardening
  • Ground cover: Can spread to form attractive, fragrant carpets

Growing Siskiyou Monardella Successfully

The good news is that this native is relatively easy to grow if you can meet its basic needs:

Growing Conditions

  • Sunlight: Prefers full sun to partial shade
  • Soil: Well-draining soil is absolutely essential – avoid heavy clay or areas that stay wet
  • Water: Drought tolerant once established, but benefits from occasional deep watering during dry spells
  • Climate: Hardy in USDA zones 7-9, perfect for California’s Mediterranean climate

Planting and Care Tips

Getting your Siskiyou monardella off to a good start is straightforward:

  • Plant in spring or fall when temperatures are moderate
  • Improve heavy soils with coarse sand or gravel to enhance drainage
  • Water regularly during the first growing season to help establish roots
  • Once established, reduce watering – this plant prefers to dry out between waterings
  • Deadhead spent flowers to encourage continued blooming
  • Little to no fertilization needed – native plants typically prefer lean soils

A Perfect Choice for Native Plant Enthusiasts

Siskiyou monardella may be a lesser-known native, but it’s exactly the kind of plant that makes native gardening so rewarding. It asks for little, gives back plenty in terms of pollinator support, and adds authentic California character to your landscape. Whether you’re creating a full native plant garden or just looking to add a few climate-appropriate plants to your existing landscape, this aromatic little perennial deserves consideration.

By choosing native plants like Siskiyou monardella, you’re not just creating a beautiful garden – you’re participating in the conservation of California’s unique plant heritage and supporting the wildlife that depends on these plants. Now that’s something worth growing!

Siskiyou 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 siskiyouensis Hardham - Siskiyou monardella

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