Pear branches, Date palm branches suitable for hugel bed?

Hey y'all. I've been researching hugelkultur for about two months now, along with companion plants and various permaculture related projects.
I am planning on starting a 16' x 6' x 2' hugel bed (partly buried) soon. I am in the process of gathering wood and have collected various woods and cuttings over the past few weeks. (I plan on primarily using oak trunks for the bed/on the deeper levels).

My question is, are pear branches and date palm branches suitable to be placed in my hugel bed? Judging for the past flowers, branches and ornamental buds, I believe the pears are from Bradford pear trees. I've read up on the good/bad wood types thread for hugelkultur and have heard of people using pear trees. I have also heard of Bradford pears spoken poorly spoken as they are referred to as an invasive species, which may make them ill-suited for hugel as they may grow quickly and easily rather than dying.

Beyond the good/bad types of woods for hugel, I could not find any information on using either of these woods for hugel. If anyone could shed some light on the possible use, that'd be great!

Thanks everyone!!!

My experience with Bradford Pear wood in hugleculture has been a postive one. I made a hugle of branches cut during the winter and there were no pear sprouts the next spring. Bradford pear rots quickly and I would not hesitate to use it again. The non rotten wood makes a decent firewood if you keep it out of the rain.
Bradford pears are invasive from spread seeds, mostly although I have seen occasional root suckers.