My forsythia plant is next to a more recently planted hibiscus plant? Should I remove the forsythia plant to allow the hibiscus to spread
They need to be spaced at least 12′ apart. If they are closer than that then yes, you should probably move the Althea (hardy hibiscus) although I’d wait until late fall to do that. Digging it up and moving it right now during the peak of the growing season will likely shock it to death. Wait until all the leaves have fallen off it before you dig it out and move it.