North America Native Plant

Scarlet Keckiella

Botanical name: Keckiella ternata septentrionalis

USDA symbol: KETES

Life cycle: perennial

Habit: subshrub

Native status: Native to the lower 48 states  

Synonyms: Keckiella ternata (Torr. ex A. Gray) Straw var. septentrionalis (Munz & I.M. Johnst.) N.H. Holmgren (KETES2)  âš˜  Penstemon ternatus Torr. ex A. Gray ssp. septentrionalis (Munz & I.M. Johnst.) D.D. Keck (PETES)   

Scarlet Keckiella: A Ruby Gem for California Native Gardens If you’re looking to add a splash of brilliant red to your California native garden while supporting local wildlife, meet the scarlet keckiella (Keckiella ternata septentrionalis). This stunning native shrub might not be a household name, but it’s a true treasure ...

Rare plant alert!

Region: Conservation status by state

Status: S5T2T3: 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. ⚘ Secure: At very low or no risk of extinction in the jurisdiction due to a very extensive range, abundant populations or occurrences, with little to no concern from declines or threats. ⚘

Scarlet Keckiella: A Ruby Gem for California Native Gardens

If you’re looking to add a splash of brilliant red to your California native garden while supporting local wildlife, meet the scarlet keckiella (Keckiella ternata septentrionalis). This stunning native shrub might not be a household name, but it’s a true treasure that deserves a spot in more Golden State gardens.

What Makes Scarlet Keckiella Special?

Scarlet keckiella is a perennial shrub that’s as tough as it is beautiful. This California native typically grows as a multi-stemmed woody plant, usually staying under 13-16 feet in height, though it can vary depending on growing conditions. What really sets this plant apart are its show-stopping tubular flowers in brilliant scarlet-red that bloom from spring through summer, creating a beacon for wildlife in your landscape.

Where Does It Call Home?

This native beauty is found naturally in California, particularly thriving in the mountain and foothill regions of Southern California, including the San Bernardino and Riverside County areas. As a plant native to the lower 48 states, it’s perfectly adapted to California’s unique climate challenges.

A Plant Worth Protecting

Here’s something important to know: scarlet keckiella has a conservation status that suggests it may be uncommon in parts of its range. If you decide to add this beauty to your garden, make sure you source it from reputable native plant nurseries that propagate their own stock rather than collecting from wild populations. This way, you’re supporting conservation efforts while enjoying this special plant.

Why Your Garden (and Local Wildlife) Will Love It

Scarlet keckiella isn’t just a pretty face – it’s a wildlife magnet! Those gorgeous red tubular flowers are perfectly designed to attract hummingbirds, making it an excellent choice for creating a wildlife-friendly garden. The flowers also draw in various bee species, adding to your garden’s pollinator support.

In landscape design, this shrub works wonderfully as:

  • An accent plant in native California gardens
  • A key component in xeriscape and drought-tolerant landscapes
  • Slope stabilization in foothill and mountain gardens
  • A focal point in wildlife and pollinator gardens

Growing Your Scarlet Keckiella Successfully

The good news is that once established, scarlet keckiella is relatively low-maintenance – true to its California native heritage! Here’s what you need to know:

Climate Requirements: This shrub thrives in USDA hardiness zones 8-10, making it perfect for most of California’s Mediterranean climate.

Light and Soil: Give your scarlet keckiella full sun to partial shade and well-draining soil. Like many California natives, it absolutely cannot tolerate soggy conditions, so good drainage is crucial.

Water Needs: Once established (usually after the first year), this drought-tolerant native requires minimal supplemental watering. During its first growing season, provide regular water to help it get established, then gradually reduce watering frequency.

Planting and Care Tips

For the best success with your scarlet keckiella:

  • Plant in fall when temperatures are cooler and winter rains can help with establishment
  • Dig a planting hole only as deep as the root ball but twice as wide
  • Mulch around the base with coarse organic mulch, keeping it away from the stem
  • Water regularly the first year, then transition to minimal summer water
  • Prune lightly after blooming to maintain shape if desired
  • Avoid fertilizing – California natives prefer lean soils

Is Scarlet Keckiella Right for Your Garden?

This native shrub is ideal if you’re creating a California native garden, want to support local wildlife (especially hummingbirds), or need a drought-tolerant plant for challenging slopes or dry areas. It’s particularly well-suited for foothill and mountain region gardens where it can truly shine.

Just remember to source your plant responsibly from native plant societies or reputable nurseries that grow their own stock. By choosing scarlet keckiella, you’re not just adding beauty to your landscape – you’re participating in the conservation of California’s unique plant heritage while creating habitat for local wildlife.

Ready to welcome this scarlet stunner into your garden? Your local hummingbirds will thank you!

Scarlet Keckiella

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

Scrophulariales

Family

Scrophulariaceae Juss. - Figwort family

Genus

Keckiella Straw - keckiella

Species

Keckiella ternata (Torr. ex A. Gray) Straw - scarlet keckiella

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