I have a nepenthes (globamphora x ventricosa), an am looking at doing a cutting from the top as I was told it was getting very tall and could use a good chop. IS there a best time of year to do this? I grow it in a orchid greenhous where it will get great humidity and watered regularly. Also globamphora is now called bellii? Is it ok to change my tag to (bellii x ventricosa)? Thanks!