Plumeria – how to get side branching.

Question

I have nine plumeria plants, grown from seed five years ago. Currently they are about 12″ tall. However they are still only producing fresh leaves from the apex.

I wish to get flowering branches from these plants, can you please advise how to achieve this, and how long before I can expect flowers.

Currently, the plants are growing indoors, in pots, on a sunny window ledge.

Answer 1

Plumeria naturally branch after blooming, but for optimal flower production and to create sturdy, attractive plants, it may be necessary to branch plumeria by pruning.
Wait until early spring to prune plumeria before new leaves emerge.
Observe the plumeria plant and see what branches can be pruned to improve the overall shape. Look for diseased or spindly limbs as well as limbs that cross over other limbs. Decide if the plumeria is the right height for your location.
Remove the weak or diseased limbs by cutting back to a main branch. Leave one inch of growth between the main branch and the cut area. The wound will emit a considerable amount of sap, which will dry up along with the remaining branch.
Cut the main stems back to the desired height or length. Cut 1/2 to 1 inch above a leaf node or joint at a 45-degree angle. The leaf node is the raised or ridged area along the branch below the cut where a new branch will emerge.
https://www.gardeningknowhow.com/ornamental/flowers/plumeria/plumeria-pruning-info.htm