Therese spiderwort is a low-growing clumping perennial plant that is derived from native North American plants. Therese has strappy gray-green leaves and bears attractive three-petaled pink flowers about 1.5 inches in diameter that appear from June until September. Each flower is open at most a single day, and in some cases, for only a morning. It grows to about two feet in height and nearly three feet in width. In an evaluation of spiderworts conducted at the 91½ûÂþ, Therese was given an excellent rating for its strong growth habit, flower production, and resistance to leaf spotting and its overall suitability for local garden conditions.

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