Bag Rooting Cuttings
Bag rooting frangipani cuttings
In the last couple of years this method has become a very popular way to get cuttings to grow roots. As with most methods there are options on what to do with people having success with each one. After the cuttings are taken from the parent tree you can either leave them to dry out for a few days or bag them straight away, both ways work. I use the glad sandwich bags to do mine as they are reasonably heavy duty, you can use peat(coco fibre) as the medium or sphagnum moss etc or even a mix of them, the main thing is to ensure it is only moist and not wet or they can rot.
Place the medium in the bag then push the cutting into it then twist the bag so that it is reasonably airtight and wrap it with tape or similar(you need the cutting to be solid in the bag and not loose), once it is sealed the condensation generated inside the bag will keep the medium moist. I place mine into pots, either black plastic or terracotta as this also generates more heat plus keeps them standing up. They can also be placed inside, some people have had them grow roots over winter inside their homes but over the spring/summer/autumn period while it is hotter they tend to grow roots much quicker outside.
You can get a root mass after 3 weeks with this method, you can also do several bags at a time and then either pot them up/plant them out or give them away. One of the great things is you can see the roots developing so there is no guess work as to how they are doing.
This is certainly a worthwhile method to try and it has excellent proven results.