... Plum?
purple and black
It firm with a dark purple skin, with a dark blood red flesh and juice.
ebony is like a really dark plum purple
No, violet is a shade of purple, dark violet would just simply be called dark violet or dark purple.
If it is really light purple then maybe, but if not, no. You'll end up with a super dark maroon or perhaps even a slighly plum color.
a dark plum tree !
Plum
maroon I thouhg it was called deep purple.
No. The purple leaved plum is Prunus Pissardii which very occasionaly will produce plums.
Assuming by 'plum' you mean purple - mixing red & blue together will give you the colour purple.
Plum.