Ruud,
Welcome to All Things Plants/ATP.
If English is not your first language you are doing a fantastic job communicating!! Sounds like your garden is perfect; a little bit of everything. It will be good to see you adding photos to the ATP database where they are needed.
Also, we are a photo-hungry group. We enjoy seeing pictures of plants, entire gardens, garden projects, and all kinds of things.
If you look on the left side of the screen for the word 'Goodies' it will take you to a list. Click on 'Members Map' and you will see that we have maybe 5 or 6 members who live in the Netherlands.
The Ulmus is an Elm tree. Don't know how accurate this list is but check this link:
http://oregonstate.edu/trees/n...
Happy gardening!