Multiple Trees in One Hole & Multi-grafted trees

NinaR starts with ...
I want to make the most of the space in my garden & am thinking of giving the multiple trees in one hole thing a try. However, I have a dilemma: a couple of fruit trees were put in about 1-2 years ago prior to me having to move away for work. Now that I have moved back I am wondering if I can now plant some new trees in close proximity to those that are already in the garden?

I already have a:-
1) pomegranate - thinking of adding another 1-2 varieties. Has anyone done something similar with pomegranates?
2) lime - thinking of adding a lemon & either a lemonade, keffir lime or other type of citrus (I'll likely do oranges & grapefruit together in another location, & a couple of types of mandarin in a third location)
3) Apricot - I'd like to add another 1 to 2 types of apricot so that I have nice fresh fruit for a longer portion of the year.

I guess the main considerations would be to try to get the new trees in a similar size to my existing trees so that they aren't dwarfed & also need to be careful not to sever too many roots of the existing trees when planting the new tress - this is something probably easier said than done!

Also - if I want to plant multiple fruits in one hole, does this mean that those trees will need more growing space independent of other 'bunches' of trees? Or in other words, how close could I then plant my next lot of multiple fruit trees in one hole (e.g 2/3/etc metres between each 'bundle').

Also, I've been considering the alternative option of grafting new varieties to my exiting trees (probably not for another year or so until the trees are very well established) But I've read that this can reduce the overall fruiting yield of the tree. Does anyone have experience with this/can anyone confirm or deny this theory? Interested to hear from people's personal experience.

Any help/guidance/ideas/opinions will be most welcome! Thanks in advance

Bangkok says...
Yes you can make cocktail tree's and grow them in pots. I have several of them.

I have a pomelotree with navel orange, tahiti lime growing on it. I tried fingerlime as well but that failed because the scionwood was only 2 mm thick.

Just try grafting and if it fails try it again.

My mangotree's have about 30 variety's growing on them but they are in full soil. Also avocado grafts well from different variety's.

Budwood can even be shipped and will stay alive for a week or 2.
If you want to graft then wrap them in parafilm totally and then graft with a stronger plastic film onto the hosttree.

Slicko says...
It would be worth effort to have a look at the videos offered by Dave Wilson Nurseries as they deal a lot with two trees in one hole and other options

Www.davewilson.com/

Mick

Chris says...
Duo planting may be fine for the dry, low humidity of So Cal, but in areas of humidity it requires far more management and more spraying, beyond the spare time of many.