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Plant profile · Austin & Hill Country
Hill Country Penstemon (Penstemon triflorus)
(c) Cody Stricker, some rights reserved (CC BY) · iNaturalist

Hill Country Penstemon

Penstemon triflorus
Hills guide picknative · Hill Country

Hill Country Penstemon is a perennial native to the Texas Hill Country that grows 1.5–2.5 ft tall and 1.5 ft wide. It wants full sun or part shade and low water, and handles caliche and clay soil. Blooms red and pink in Apr–May. Good for hummingbirds.

Will it grow in your yard?

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From our guide

Village of the Hills

Slender stems with large rose-pink tubular flowers in spring.

Why it works here

An Edwards Plateau endemic — this is the penstemon that actually belongs on our limestone.

Watch out

Requires sharp drainage; it will not survive irrigated ground. Summer dormant.

The facts

6 sources
Type
Perennial
Sun
Full sun to part shade (3+ hrs)
Water
Low
Height
1.5–2.5 ft
Spread
1.5 ft
Bloom
Apr–May · red, pink
Foliage
Deciduous
Soil
Takes caliche and clay · recorded on dry, limestone, rocky, well drained
Deer
Moderate — deer may browse it, especially new growth. Blooms taken in dry springs.
Wildlife
Supports hummingbirds
Size, sun, water and foliage from the Village of the Hills guide; the rest resolved across sources.

Where it grows

Recorded in these EPA Level IV ecoregions in the Austin and Hill Country launch area:

Balcones CanyonlandsLlano UpliftEdwards Plateau Woodland

239 occurrence records in Central Texas (GBIF).

Can you buy it?

In the Village of the Hills guide, but not on the grower stock lists we read yet. Ask a native-plant nursery.

also grows from seed It starts readily from seed, so a packet from a native-seed supplier, or seed collected with permission, is often the easiest way to get a plant no nursery pots.