If that’s a plumcot, what is a pluot?
The plumcot was created by American horticulturist Luther Burbank a century ago by budding a hybrid plum/apricot.
Pluots were invented quite recently by Floyd Zaiger, and are a selection or variety of plum/apricot-crosses that show more plum than apricot characteristics. Conversely, an ‘aprium’ is a similar cross but shows more apricot features than plum.
There is also a tree called an ‘apriplum’ which is a cross-pollinated hybrid but it doesn’t set fruit without further cross-pollinating.
Wikipedia has a full list of available varieties of both plumcots and pluots worldwide. These were all developed in California, which gives you a hint as to what climate they really thrive in: ample summer heat and good spring rain, with some winter chill but not hard frosts in spring, which damage the blossoms.