|I've read that campsis can grow up to 40 feet. How big will it grow if planted in a container? How large should the container be? I want to plant a campsis in a container and hope it can grow to 20 or 30 feet to cover a trellis.
|Campsis radicans tends to colonize an area because it freely suckers from the root system. You can avoid this habit by keeping yours in a large container - one about the size of a half-whiskey barrel. Use a combination of potting soil and garden soil in your container and be sure there are plenty of drainage holes in the bottom of the container. Even if you contain the roots, the tops will grow 20-30' without problem. Enjoy!|