posted 1 year ago
Hi David. Whether a plant will grow from cuttings totally depends on the type of plant. You'll be more successful taking the right type of cuttiing for your plant (soft growing tip, softwood, hardwood), at the right time of year for it, and using the right medium for it (e.g., water, sand, pumice, garden soil, etc.) Rooting hormone helps in most cases unless you are using water as the rooting medium. Some plants also root better using airlayering or by burying some of the live branches in the ground. It all depends on the plant. I don't know of any central source for that kind of imformation but I'm sure you can find the information you need for the plants you want to propogate on the internet. In doing so, I'd suggest finding a few different, reputable-looking sources that agree as the right method for your plant.
As to a plant not developing a proper root structure when it's grown from a cutting, I don't think that's accurrate. The root structure can and will be impacted if the potted plant is not watered properly or is allowed to get root bound, or if it is not transplanted carefully.