Some of my experiments with Palora graftings and seedlings, all were grafted/sown in April 2019.
This is a grafting of a Palora from Ecuador bought in a supermarket:
The other one that took, this one was slower, didn't start to push until few weeks ago, but it was my fault. I forgot about it and let it in a grown adult
undatus, when I cut the stem, cut out the rootstock buds and put the piece to root and grow alone, one Palora bud pushed eventually, I think the other 2 buds will push also because the rootstock keeps producing flushes (that I take out).
This is a seedling of these Paloras, named #Pal3, is the most vigorous of all of them and I just found its first flower bud, 17 months after I sown the seed. I don't know if this is within the average time or is more precocious than usual, the other dozen of seedlings are neither so vigorous nor precocious but here we are just starting blossom season for megalanthus so we'll see...