How much sun does Royal Penstemon need?

Royal Penstemon grows best in full sun conditions.

When does Royal Penstemon bloom?

Royal Penstemon blooms in June, July, and August.

Where is Royal Penstemon native?

Royal Penstemon (Penstemon speciosus) is native to CA, ID, NV, OR and 2 more states, per vouchered herbarium specimen records and regional native plant society lists.

Is Royal Penstemon toxic to livestock?

The USDA PLANTS Database does not flag Royal Penstemon as toxic to livestock.

What pollinators does Royal Penstemon attract?

Royal Penstemon draws bees and hummingbirds.

Is Royal Penstemon HOA-friendly?

Royal Penstemon is generally an HOA-friendly choice in the right placement, with low maintenance.

Royal Penstemon

Name: Pollinator Patch
Author: Pollinator Patch

Penstemon speciosus

Last reviewed: August 2026

Toxicity unknown

Royal Penstemon (Penstemon speciosus) is not listed by the ASPCA Animal Poison Control Center (opens in new tab) or the other sources we check, so we have no verdict for it either way. Absence from those lists is not a clearance. If your pet shows symptoms after eating any plant, call the ASPCA at (888) 426-4435.

The USDA PLANTS Database (opens in new tab) does not flag Royal Penstemon as toxic to livestock.

Light

full sun

Water

low

Size

12"–24" H × 6"–12" W

Bloom

Jun, Jul, Aug

Native to

CA, ID, NV, OR and 2 more states

Pollinators

bees, hummingbirds

Before you buy

Your city may pay you to plant this

Cities and water utilities offer rebates for replacing lawn with native and water-wise plants. We track 437 programs across 44 states, each with a link to the provider and the date we last checked it.

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Browse plants for this ecoregion

Northwestern Forested Mountains Sierra Nevada Southern California Mountains North American Deserts Central Basin and Range Mojave Basin and Range

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.

Common questions

How much sun does Royal Penstemon need?: Royal Penstemon grows best in full sun conditions.
When does Royal Penstemon bloom?: Royal Penstemon blooms in June, July, and August.
Where is Royal Penstemon native?: Royal Penstemon (Penstemon speciosus) is native to CA, ID, NV, OR and 2 more states, per vouchered herbarium specimen records and regional native plant society lists.
Is Royal Penstemon toxic to livestock?: The USDA PLANTS Database does not flag Royal Penstemon as toxic to livestock.
What pollinators does Royal Penstemon attract?: Royal Penstemon draws bees and hummingbirds.
Is Royal Penstemon HOA-friendly?: Royal Penstemon is generally an HOA-friendly choice in the right placement, with low maintenance.

Native range data from vouchered herbarium specimen records and regional native plant society lists. Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.

Ready to grow Royal Penstemon? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.

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