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Tomcat Clover

Trifolium willdenovii

Last reviewed: August 2026

Trifolium willdenovii (Tomcat Clover) is a native forb found across the western United States from Arizona to Washington. This drought-tolerant wildflower blooms from March through June with pink flowers that attract bees and butterflies.

Tomcat Clover (Trifolium willdenovii)
Photo: (c) Justin Paulin, some rights reserved (CC BY), uploaded by Justin Paulin

Tomcat Clover (Trifolium willdenovii) is not on the ASPCA Animal Poison Control Center toxic plant list for dogs or cats (aspca.org (opens in new tab), last reviewed 2026-05-21). If your pet shows symptoms after eating any plant, call the ASPCA at (888) 426-4435.

Light

full sun

Water

low

Size

4"–16" H × 4"–12" W

Bloom

Mar, Apr, May, Jun

Native to

AZ, CA, ID, OR and 1 more states

Pollinators

bees, butterflies

Before you buy

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Tomcat clover is a low-growing annual wildflower with distinctive purple-pink flower heads. It blooms from early spring through early summer, creating a charming seasonal display. This clover thrives in full sun with low water requirements once established.

Growing Tomcat Clover

Grow Tomcat Clover in full sun and low water. Mature plants reach 4 to 16 inches tall and spread 4 to 12 inches wide. Expect moderate maintenance to keep it looking intentional in a front yard.

In an HOA neighborhood

Tomcat Clover is an HOA-friendly choice in the right placement. Maintenance level: moderate. Tidiness: 2 out of 5.

Works well in: mid zone, backyard only.

  • Annual nature means seasonal dieback
  • May spread unpredictably in some landscapes
  • Can look somewhat informal/meadow-like

Wildlife value

Tomcat clover attracts various bee species including native bumblebees and honeybees. Butterflies also visit the flowers for nectar.

Common questions

Where does Tomcat Clover naturally grow?
Tomcat Clover is native to five western states: Arizona, California, Idaho, Oregon, and Washington.
When does Trifolium willdenovii bloom?
Tomcat Clover typically blooms from March through June, producing pink flowers during the spring and early summer months.
What pollinators visit Tomcat Clover?
Bees and butterflies are the primary pollinators of Trifolium willdenovii, making it a valuable plant for supporting native pollinator populations.
How much water does Tomcat Clover need?
This native clover is adapted to low water conditions and is considered drought-tolerant once established, making it suitable for water-wise gardens.
Is Tomcat Clover toxic to dogs?
Tomcat Clover is not on the ASPCA Animal Poison Control Center toxic plant list for dogs (aspca.org).
Is Tomcat Clover toxic to cats?
Tomcat Clover is not on the ASPCA Animal Poison Control Center toxic plant list for cats (aspca.org).
Is Tomcat Clover HOA-friendly?
Tomcat Clover is generally an HOA-friendly choice in the right placement, with moderate maintenance.

These answers were drafted with an AI model from this plant's data. Verify care details with a local expert.

Native range data from the World Checklist of Vascular Plants (Kew). Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.

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

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