Native Plants

Scarlet Keckiella

Keckiella ternata septentrionalis

USDA symbol: KETES

perennial subshrub

Lower 48 states: native

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. ...

Scarlet Keckiella may be listed as rare in your area.
Global Conservation Status

Status: S5T2T3 | Secure: At low or no risk of extinction in the area due to an extensive range, abundant populations, and with little to no concern of 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.

  • Species observed
  • No observations

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!

Keckiella ternata septentrionalis is also known as...

Often we refer to plants by their common names. When shopping for plants the scientific name is the best way to positively identify the plant species you desire. But some plants have more than one name! While it doesn't happen often, nurseries might display one name while you're searching for another. Keckiella ternata septentrionalis is also known as:

Keckiella ternata Straw var. septentrionalis | USDA symbol: KETES2
Penstemon ternatus ex Gray ssp. septentrionalis | USDA symbol: PETES

Why do some plants have more than one name? Over time plant species may be renamed for a few reasons:

  1. Botanists in different regions named the same plant without knowing it had already been classified.
  2. A species was reclassified after scientific advances in, for example, DNA analysis.
  3. Slight variations within a species are sometimes mistakenly identified as entirely new species.

Classification

Group: Dicot
Kingdom: Plantae - Plants
Subkingdom: Tracheobionta - Vascular plants
Superdivision: Spermatophyta - Seed plants
Division: Magnoliophyta - Flowering plants
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

Subspecies: Keckiella ternata (Torr. ex A. Gray) Straw ssp. septentrionalis (Munz & I.M. Johnst.) 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