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Venus' Looking Glass

Triodanis perfoliata

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Category
Forb / Wildflower
Sun
Full to Partial
Soil moisture
Dry
Bloom time
May–Aug
Bloom color
Purple
Notes
Annual

About Venus' Looking Glass

Venus' Looking Glass is a charming native annual that adds a delicate touch of violet to sun-drenched landscapes. This slender plant is easily identified by its unique 'clasping' heart-shaped leaves that wrap around the stem, forming small cups. From May through August, it produces vibrant purple, star-shaped flowers that open sequentially from the bottom of the stem upward. Interestingly, the lower flowers are often 'cleistogamous,' meaning they self-pollinate without ever opening. Growing between 6 and 18 inches tall, it is a versatile species found throughout North America in dry prairies, fields, and rocky slopes. It is a fantastic choice for supporting biodiversity, attracting a wide array of small native bees, flies, and butterflies. Venus' Looking Glass is incredibly easy to grow from seed in full to partial sun and well-drained, dry soils. Its ability to self-seed makes it a reliable and low-maintenance addition to wildflower meadows or rock gardens.

Native range

Native to 48 states:

AlabamaArkansasArizonaCaliforniaColoradoConnecticutD.C.DelawareFloridaGeorgiaIowaIdahoIllinoisIndianaKansasKentuckyLouisianaMassachusettsMarylandMaineMichiganMinnesotaMissouriMississippiMontanaNorth CarolinaNorth DakotaNebraskaNew HampshireNew JerseyNew MexicoNew YorkOhioOklahomaOregonPennsylvaniaRhode IslandSouth CarolinaSouth DakotaTennesseeTexasUtahVirginiaVermontWashingtonWisconsinWest VirginiaWyoming

County range map

BONAP county-level native range map for Triodanis perfoliata

Range map courtesy of BONAP (Biota of North America Program).

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