Question
I am looking for a tree like this that only grow 15'H (max 20'H).  Is there a variety of this that is this size or can you recommend a similar small tree?

Thank you in advance

Answer
Here are some varieties that may fit your needs.

Cercis canadensis 'Covey'
Lavender Twist Redbud

Description:  A recent introduction in high demand!!  A striking, small weeping tree with pink flowers. Contorted stems.  Yellow fall color.  A beautiful and rare tree.     
Bloom Color: Pink
Bloom Time: March-April
Foliage Color: Green
Height: 8-10'
Spread: 8-10'


Cercis canadensis 'Forest Pansy'
Forest Pansy Eastern Redbud

Description:  Foliage emerges shimmering red-purple and becomes dark green in color by late June.  Bears rosy-pink pea-like flowers in spring and last for 2-3 weeks!  Fall color includes attractive shades of reddish-purple and orange.   
Bloom Color: Pink
Bloom Time: April
Foliage Color: Green
Height: 15-25'
Spread: 15-25'


Cercis canadensis 'Silver Cloud'
Silver Cloud Eastern Redbud

Description:  Striking variegated leaves of creamy white and green is what sets this Redbud apart from all the others.  Magenta pink flowers.  bloom in spring.  Best if planted in some shade because foliage will burn in full sun.   
Bloom Color: Magenta Pink
Bloom Time: April
Foliage Color: Variegated white/green/yellow
Height: 10-15'
Spread: 10-15'
 
Cercis Canadensis Ace of Hearts
旽eight/Spread: grows to 9ft tall by 12ft wide.
旻lower: a very heavy bloom set with light purple flowers.
旽abit: wonderful, compact variety with very small heart-shaped leaves.
旽ardiness: zone 5 - 9.


Cercis Canadensis Little Woody
旽eight/Spread: grows to 8 - 10ft tall in 8 years.
旻lower: a heavy bloomer. Mauve clusters on naked branches.
旻oliage: one of the most outstanding features are the leaves that are a lustrous dark green with a crinkley appearance.
昐oils: medium, well-drained soils.
旽ardiness: zone 5 - 9.