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Royal Penstemon

Penstemon speciosus

Last reviewed: June 2026

Royal Penstemon (Penstemon speciosus)
Photo: (c) Ken-ichi Ueda, some rights reserved (CC BY)

Light

full sun

Water

low

Size

12"–24" H × 6"–12" W

Bloom

Jun, Jul, Aug

Native to

CA, ID, MT, NV and 3 more states

Pollinators

bees, hummingbirds

Royal penstemon produces tall spikes of vibrant blue-purple tubular flowers from June through August. This drought-tolerant native perennial forms compact clumps with narrow green leaves that die back in winter.

In an HOA neighborhood

Royal Penstemon is an HOA-friendly choice. Maintenance level: low. Tidiness: 4 out of 5.

Works well in: front yard, foundation, street edge, mid zone.

  • Goes completely dormant in winter

Wildlife value

The tubular flowers are especially attractive to hummingbirds and native bees. This is an important nectar source during the mid-summer bloom period.

Native range data from the USDA PLANTS Database and regional native plant society lists. Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.

Does Royal Penstemon fit your yard? Open it in Pollinator Patch to check it against your sun, soil, and HOA-conscious filters.