Q.When to repot a diplodenia plant
I have a diplodenia in a 10 inch clay pot…this was planted last spring, over wintered indoors, and brought back out the first of spring in Oklahoma, I think is zone 7…… How will I know when it is time to put in a bigger pot? It is beginning to bloom now so I’m not sure if I should bother it..please help!
Thank you,
If the roots are filling the entire bottom of the pot or even poking out from the pots drainage holes, it is time to repot.
Look for a pot slightly wider but not taller then the existing pot. Proper drainage is important.
Repotting is a good time to add a trellis if you don't have one.
Use a good quality potting mix.
https://www.gardeningknowhow.com/ornamental/vines/mandevilla/growing-a-dipladenia.htm