That is sad, Elfie. In my humble opinion the world has gotten more dangerous and we Americans less honest/ethical and more downright nasty. It is very sad that people with wonderful gardens or just wonderful plants can't tend those gardens or grow those plants without fear of damage or theft.
My three original plumeria, the Celadine, Scott Pratt, and Vera Cruz Rose, brought back from Maui as finger-size, 6" long cuttings, will celebrate their 30th birthdays in May. My first two seedlings, germinated in December, 2013, are still growing like crazy and one of them is not only 4' tall but about 2" in diameter. Even though it is only 1 1/2 years old, I just have a feeling that it is going to fool everyone and bloom this year.
I know, I know, just wishful thinking.
