Are the Yellow bell plants invasive? Can they damage house foundations? How bushy do they grow? I want to grow them in pots to climb up a trellis. Thank you
Yellow Bells for AZ
Certified GKH Gardening Expert
Yellow Bells, or Tecoma stans, is native to Arizona and is not considered invasive there, although it is considered invasive in some states where it is not native. It should also not damage the foundation, as long as you plant it far enough away for the size at maturity- they can reach 15-20 feet height and 5-10 feet spread at maturity, but if planted in pots they would probably stay smaller.
The plant grows in the shape of a large shrub with an oval shape, so yes, they are pretty bushy. They can also be pruned to the desired shape, including a small tree with one trunk.