Littlecup Penstemon
Penstemon sepalulus
Last reviewed: October 2026
Toxicity unknown
Littlecup Penstemon (Penstemon sepalulus) 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.
Light
full sun
Water
low
Size
12"–30" H × 12"–18" W
Bloom
May, Jun, Jul
Native to
UT
Pollinators
bees
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 458 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
A woody-based beardtongue with narrow leaves and lavender to violet tubular flowers held above small, cup-like sepals. Grows on dry, rocky foothill slopes.
In an HOA neighborhood
Littlecup Penstemon is an HOA-friendly choice. Maintenance level: low. Tidiness: 4 out of 5.
Works well in: rock gardens, low water beds.
Wildlife value
Its flowers provide nectar and pollen for native bees in late spring and early summer.
Common questions
- How much sun does Littlecup Penstemon need?
- Littlecup Penstemon grows best in full sun conditions.
- When does Littlecup Penstemon bloom?
- Littlecup Penstemon blooms in May, June, and July.
- Where is Littlecup Penstemon native?
- Littlecup Penstemon (Penstemon sepalulus) is native to UT, per vouchered herbarium specimen records and regional native plant society lists.
- What pollinators does Littlecup Penstemon attract?
- Littlecup Penstemon draws bees.
- Is Littlecup Penstemon HOA-friendly?
- Littlecup 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.
If something looks wrong
Common plant problems, and what to check first
These come up on almost any plant. Each guide lists the likely causes in the order they are worth ruling out, with one thing to check before you act on any of them, and links to the source it came from.
- It is dying right after planting
- Leaves turning yellow
- Wilting even though I watered it
- Brown crispy leaf tips
- Bugs on the plant
Ready to grow Littlecup Penstemon? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.