What is a Callus?

A callus is a swollen growth (similar to a scar) from the dried cutting surface of a Plumeria cutting. The callus is basically the precursor to root formation, as the small roots grow out of it.

A callus forms when the cutting is properly dried and stored. When the cutting has a callus, rooting should begin. Which method the hobby gardener uses remains up to them.

A callus can also be too large!

If the plant does not feel moisture, meaning it does not have the urge to form roots, it will continue to develop the callus; HOWEVER, if it becomes too thick, it will be difficult for the young roots to penetrate the callus and develop.

Ideal callus. This cutting can now be rooted!

In the image marked in red, you can see a callus that is already a bit too large. Here, the young roots will have difficulty penetrating it.

If you have such a Plumeria cutting, you should definitely start the rooting process.

What rooting methods are recommended?

We recommend rooting the Frangipani cutting in perlite, which you should lightly spray every 2-3 days. Never pull the cuttings out of the perlite, but dig them out, as the young roots could be damaged.

Another very safe method to root a Frangipani cutting is the bag rooting method.

You can also plant such a cutting directly in soil, but you must be very careful with watering.

Or you can use the bag rooting method. For this, a plastic bag is filled with soil about 10-15 cm, lightly moistened, and then the cutting is placed inside, and the bag is carefully closed at the top. 80% of the cutting should, of course, stick out of the bag. Store the bag in a warm place (22-25°C). You will see as soon as roots begin to form.