North America Native Plant

Scarlet Keckiella

Botanical name: Keckiella ternata ternata

USDA symbol: KETET

Life cycle: perennial

Habit: subshrub

Native status: Native to the lower 48 states  

Synonyms: Keckiella ternata (Torr. ex A. Gray) Straw var. ternata (KETET3)  âš˜  Penstemon ternatus Torr. ex A. Gray (PETE15)   

Scarlet Keckiella: A California Native That’s Pure Fire in Your Garden If you’re looking for a California native plant that brings both stunning color and effortless charm to your landscape, meet the scarlet keckiella (Keckiella ternata ternata). This delightful shrub is like that reliable friend who always shows up looking ...

Scarlet Keckiella: A California Native That’s Pure Fire in Your Garden

If you’re looking for a California native plant that brings both stunning color and effortless charm to your landscape, meet the scarlet keckiella (Keckiella ternata ternata). This delightful shrub is like that reliable friend who always shows up looking fabulous without trying too hard – and your local hummingbirds will absolutely adore you for planting it.

What Makes Scarlet Keckiella Special?

Scarlet keckiella is a perennial shrub that typically grows 3-6 feet tall and wide, creating a lovely rounded form in your garden. Don’t let the scientific name intimidate you – this plant was formerly known as Penstemon ternatus, so you might see it listed under that name in older gardening resources.

The real showstopper here is the flowers. From spring through fall, this shrub produces clusters of tubular, bright red blooms that practically glow against the green foliage. These aren’t just pretty faces either – they’re hummingbird magnets of the highest order.

Where Does It Come From?

This beauty is a true California native, naturally found in the chaparral and woodland areas of Southern California. It’s perfectly adapted to our Mediterranean climate, which means it knows how to handle our dry summers and mild, wet winters like a pro.

Why Your Garden (and Local Wildlife) Will Love It

Here’s where scarlet keckiella really shines as a garden addition:

  • Hummingbird heaven: Those tubular red flowers are like neon signs saying Free nectar here! to Anna’s, Allen’s, and other local hummingbirds
  • Drought superstar: Once established, this plant laughs in the face of summer droughts
  • Low maintenance: Perfect for gardeners who want beauty without the fuss
  • Long bloom period: Flowers from spring through fall keep the color coming for months
  • Native plant credentials: Supports local ecosystems and fits naturally into California landscapes

Perfect Garden Spots for Scarlet Keckiella

This versatile native works beautifully in several garden styles:

  • Native plant gardens: Pairs wonderfully with other California natives like ceanothus, manzanita, and salvias
  • Mediterranean landscapes: Fits right in with lavender, rosemary, and other drought-tolerant plants
  • Wildlife gardens: Essential for creating hummingbird-friendly spaces
  • Xeriscape designs: Brings color to water-wise landscapes
  • Hillside plantings: Great for erosion control on slopes

Growing Conditions: Keep It Simple

Scarlet keckiella thrives in USDA hardiness zones 9-10, making it perfect for most of California’s mild climate regions. Here’s what it needs to be happy:

  • Sunlight: Full sun to partial shade (morning sun with afternoon shade works great)
  • Soil: Well-draining soil is crucial – it doesn’t like wet feet
  • Water: Regular water the first year, then drought-tolerant once established
  • Space: Give it room to spread 3-6 feet wide

Planting and Care Tips

The beauty of scarlet keckiella is that it doesn’t ask for much:

  • Best planting time: Fall or early spring when temperatures are mild
  • Soil prep: If your soil is clay-heavy, amend with coarse sand or gravel for better drainage
  • Watering schedule: Deep, infrequent watering once established (think once a week in summer, less in winter)
  • Pruning: Light pruning after the main bloom period helps maintain shape
  • Fertilizing: Usually unnecessary – this plant prefers lean conditions

The Bottom Line

Scarlet keckiella is one of those plants that makes you look like a gardening genius without breaking a sweat. It’s beautiful, supports local wildlife, handles drought like a champ, and brings that authentic California native plant vibe to your landscape. Plus, there’s something deeply satisfying about growing plants that naturally belong in your area – it just feels right.

Whether you’re creating a wildlife sanctuary, designing a water-wise garden, or just want something gorgeous that won’t demand constant attention, scarlet keckiella deserves a spot in your California garden. Your hummingbirds will thank you, and you’ll wonder why you waited so long to discover this native gem.

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