Oenothera lindheimeri, Gaura lindheimeri or also known as Lindheimer’s Clockweed, Indian Feather, Pink Gaura or White Gaura. It is a herbaceous perennial with flowering spikes full of beautiful pink flowers that grow as tall as 50cm to 150cm which is about 20in to 5ft. It blooms for a long time creating a beautiful bush like flowers. This plant loves the sun and is drought resistant. It blooms in summer and fall.
Gaura grows to about 2 ft. high, I have also seen it as tall as 3 ft. and 3 ft. wide especially in its native Mexico. It looks beautiful in borders.