North America Native Plant

Jepson’s Deerweed

Botanical name: Lotus procumbens var. jepsonii

USDA symbol: LOPRJ

Life cycle: perennial

Habit: subshrub

Native status: Native to the lower 48 states  

Synonyms: Hosackia sericea Benth. ssp. jepsonii (Ottley) Abrams (HOSEJ)   

Jepson’s Deerweed: A Rare California Native Worth Protecting in Your Garden If you’re passionate about California native plants and conservation, Jepson’s deerweed (Lotus procumbens var. jepsonii) might just capture your heart. This charming little perennial herb represents something special in the world of native gardening – a plant that’s not ...

Rare plant alert!

Region: Conservation status by state

Status: S3?T1T2: Status is uncertain but is somewhere between the following rankings: Inexact rank: ⚘ Subspecies or variety is critically Imperiled: Extremely rare due to factor(s) making it especially vulnerable to extinction. Typically 5 or fewer occurrences or very few remaining individuals (<1,000) ⚘ 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) ⚘ 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 ⚘

Jepson’s Deerweed: A Rare California Native Worth Protecting in Your Garden

If you’re passionate about California native plants and conservation, Jepson’s deerweed (Lotus procumbens var. jepsonii) might just capture your heart. This charming little perennial herb represents something special in the world of native gardening – a plant that’s not only beautiful but also plays an important role in preserving California’s botanical heritage.

What Makes Jepson’s Deerweed Special?

Jepson’s deerweed belongs to the pea family and grows as a low-growing perennial forb. Unlike woody shrubs or trees, this plant stays soft and herbaceous, making it perfect for ground-level interest in your native garden. You might also see it listed under its scientific synonym, Hosackia sericea Benth. ssp. jepsonii, in older botanical references.

What sets this plant apart is its rarity. With a conservation status of S3?T1T2, Jepson’s deerweed is considered uncommon and deserves our attention and protection. This makes it both a special addition to gardens and a responsibility for those who choose to grow it.

Where Does It Call Home?

This delightful native is endemic to California, meaning you won’t find it growing naturally anywhere else in the world. Its limited distribution makes it a true Golden State treasure that California gardeners can take pride in preserving.

Garden Appeal and Landscape Role

While Jepson’s deerweed might not be the showiest plant in your garden, it brings understated charm with its small, bright yellow pea-like flowers. These cheerful blooms appear in clusters and provide a lovely contrast against the plant’s soft foliage. As a low-growing perennial, it works wonderfully as:

  • Ground cover in native plant gardens
  • Erosion control on slopes
  • Filler between larger native shrubs
  • Addition to naturalized meadow areas

Supporting Local Wildlife

Like many members of the pea family, Jepson’s deerweed is a friend to pollinators. Its flowers attract native bees and butterflies, making it a valuable addition to any wildlife-supporting garden. The plant also belongs to a family known for fixing nitrogen in the soil, potentially benefiting neighboring plants.

Growing Jepson’s Deerweed Successfully

As a California native, this plant is naturally adapted to the state’s Mediterranean climate patterns. Here’s what you need to know for successful cultivation:

Ideal Growing Conditions

  • Sunlight: Full sun to partial shade
  • Soil: Well-draining soils; avoid heavy clay or constantly wet conditions
  • Water: Moderate water during establishment, then minimal once established
  • Hardiness: Best suited for USDA zones 8-10

Planting and Care Tips

The key to success with Jepson’s deerweed is mimicking its natural habitat conditions:

  • Plant in fall for best establishment before summer heat
  • Ensure excellent drainage – this plant doesn’t tolerate soggy roots
  • Water regularly the first year, then reduce to occasional deep watering
  • Avoid fertilizers, which can encourage excessive growth and reduce flowering
  • Allow the plant to go dormant naturally in summer if water is limited

Important Conservation Note

Before you rush out to find Jepson’s deerweed, there’s something crucial to consider: its rarity status means you must source this plant responsibly. Only purchase from reputable native plant nurseries that propagate their plants rather than collecting from wild populations. Never collect seeds or plants from natural areas – this could harm already vulnerable populations.

Consider contacting local native plant societies or botanical gardens for guidance on ethical sources. Some may even have seed-sharing programs for rare natives like this one.

Is Jepson’s Deerweed Right for Your Garden?

This plant is perfect for gardeners who:

  • Are passionate about California native plants
  • Want to support conservation efforts
  • Appreciate subtle beauty over flashy displays
  • Have well-draining garden conditions
  • Can source plants responsibly

While Jepson’s deerweed might not be the easiest plant to find or the most dramatic in your garden, it offers something invaluable: the chance to preserve a rare piece of California’s natural heritage while creating habitat for native pollinators. For the conservation-minded gardener, that’s worth more than any showy bloom.

By choosing to grow Jepson’s deerweed responsibly, you become part of a network of gardeners helping ensure this special plant continues to thrive for future generations. Now that’s something to feel good about every time you see those cheerful yellow flowers blooming in your garden.

Jepson’s Deerweed

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Rosidae

Order

Fabales

Family

Fabaceae Lindl. - Pea family

Genus

Lotus L. - trefoil

Species

Lotus procumbens (Greene) Greene - silky deerweed

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