A 3.5" pot of Buddleia Little Rockstars
Your choice of 
Blue
Pink
Purple
Red
White
 
Not sure if flowering yet.  First year they generally don't do much more than you see.  Second year they should be full grown.
 
*From Mike Weber's Greenhouses. 
*Photo is stock photo

Height: 2-3'
Width: 2-3'
Bloom Time: mid Summer to Fall
Exposure: Full to Part Sun
Characteristics:  Drought Tolerant, Hot and Dry Tolerant, Attracts Butterflies & Hummingbirds, Pollinator Friendly, Deer Resistant, Rabbit Resistant