False Rosemary AKA Scrub Mint (Conradina canescens)

 I have to be planted in the sun in sandy soil .
  
I do not need extra water. 
  
Size:     2 ft tall x 2 ft wide

Bloom Time: Spring, Summer       
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Price: $6.99 (1 gal)
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I thrive on neglect in sandy soil. I smell wonderful and am a great addition to a wildflower garden. The bees and butterflies love my little purple blooms. Do not give me too much water after I’m established because I will rot and die.

https://www.fnps.org/plants/plant/conradina-canescens

http://florida.plantatlas.usf.edu/Plant.aspx?id=645