I've had about 3/4 of an acer of raspberries since 6 years ago when I expanded the patch. I've introduced garlic and chives wich do very well under the raspberries and seed themselves. Mint did so well with the raspberries that I had to stop its spread but I think a smaller variaty of mint would be less problematic. Rhubarb does good there to but needs some help to spread. I have recently mixed in some jeruselem artichokes, currants, and a sascatoonberry bush. I also grow ploe beans (wich climb on the tall raspberry twigs) and squash in any openings. I would like to see if the raspberries could support grape vines and hardy chinese yams. I feel sure that leeks and onions would do well with them too because they start earlier in spring than the raspberries. A tall (5ft) perennial grass has moved in and is spreading but if I had animals here to feed it to I am sure it could be controled just by cut and carry feeding. Trees are starting to move in and become a problem, but its not hard to control them.
(Sterile Bocking 14) Comfrey's a great weed-barrier round the edges if you're not digging, and creates lots of mulch for chop n drop. My raspberries don't appear to be 'sharers' but it's an immeasurably smaller patch. I keep the mint family, including oregano, away from less...exuberant...plants, but raspberries are pretty exuberant, so it could work! Some of the clovers would be good round the edges. Do you thin and prune the canes? I can't envisage how you'd get grapes in there, since they need a pretty strong, permanent structure to climb.
I've found peach trees to work great as support for vines. They dont get to big and mine are not to leafy so they let light in. I use them for pole beans, chaiyote, chilacayote and passion fruit vines; but if I had other vines I'd grow them there to. I also like to bend or brake the branches down to allow vines to climb up from farther away.
I was tought to belive certin spacing rules for trees and things but I had to learn the hard way that thoughs rules just don't apply everywhere. I thought I knew how far to space my trees from eachother, boy was I wrong. Down here in Puebla it seems you either have to build a roof over it or plant it in the shade of another tree. I,ve learned that some trees can survive the dry wind and frost on there own and once established they can provide cover for other trees and bushes.
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