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Keeping semi-dwarf apples small

Starplate pasture

I'd been planning on setting out our newly grafted apple trees into the tree alleys in the starplate pasture this winter, but my gut says the soil there isn't ready to support tree growth.  Sure, the texture looked great when I dug into it last winter --- well-drained and loose --- but plants have been slow to colonize the bare soil.  In our climate, all I should have to do is avert my eyes if I want weeds to grow over my head, and instead, the ground is still spottily covered with bits of grass and white clover despite the copious addition of chicken manure from our pastured flock and the last mowing over a month ago.  As a result, I figure those tree alleys need another year or two of TLC before I put beloved perennials in place. 

First-year apple trees

So...what am I to do with 11 beautiful apple trees?  Even though a late frost kept our two-year-old high-density apples from fruiting this year, I've been very happy with the vibrant growth resulting from the training method.  So I decided to keep this new round of apples small and closer to home using similar high-density methods.  Sure, if I train the trees to stay diminutive, I'll probably end up getting fewer apples from each plant, but I suspect I'll get the same or more total apples since close-to-home trees are more likely to survive and thrive.

Time to find gaps to fill!  I have five trees on M7 rootstock (usual spacing 12-15 feet) and six trees on MM111 rootstock (usual spacing 15 to 20 feet) to play with, so if I planted them traditionally, they would take up most of our garden.  However, the M7s should make good espaliers along the front of the trailer and the MM111s can be trained to the high-density method if I space them at least five feet apart (based on this handy calculator).  I'm curious to hear from folks who have played with espaliering --- do you think a six-foot spacing for apples on M7 rootstock will work?  And, given that I'm most interested in productivity over beauty, which shape would you recommend?



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I keep all of my fruit trees under 6 feet high, mostly using espalier forms. Probably one of the simplest and most productive espalier forms for apples is a simple fan shape. There a a fantastic book that describes a wide variety of training and pruning methods for all the different kinds of fruit: American Horticultural Society Pruning and Training, by Christopher Brickell and David Joyce

I'm growing my apple trees on semi-dwarf Geneva rootstock, because they are resistant to fireblight. One tip: varieties of trees that catalogs describe as "vigorous" are much more difficult to keep small. I'm regularly pruning 3-5 foot lengths of branches off of those each year - while my "non-vigorous" varieties are much easier to keep trained small. I absolutely love my mini fruit garden! Have fun!

Comment by Debra Graff Mon Jul 28 10:10:10 2014

I would recommend not putting them against the south face of a structure and have them free standing if possible. Our trees are along the south face of a fence (6-8" away)and it would only achieve enough sun light to produce if it had unobstructed sun the entire day. That is because we are far enough south that the sun goes above due east and west in the summer and the trees end up being in shade from that fence. June 21st the trees would only get 7 hours of sun if they were not shaded by any other object. If the trees were just a few feet away from the fence they would get much more sun.

As far as spacing we planned ours at 6 foot spacing and it is a bit cramped I'd try for 8 feet if you have the room.

The multi-tiered cordon method seems to be the easiest to maintain after the tiers are created. We have a candelabra type shape and the vertical arms are always trying to compete due to the apical dominance. I think the horizontal would help reduce that, but I don't know how difficult it would be to balance the tiers.

We did it to get a lot of varieties in a small space but they require more work than they are worth at least in our location (the shade for us means they are not productive.)

I hope they work out better for you.

Comment by Brian Mon Jul 28 10:27:06 2014
I'll be following this with interest! I started to espalier a cherry against our brick but it was too hot for it. I'm now reading up on bonsai methods for keeping our front yard fruit trees from getting too big.
Comment by Fostermamas Mon Jul 28 11:38:39 2014
I've just started with a cherry against my house. Fan shaped. Two years in, I don't expect production for a bit yet. West facing side of the house.
Comment by c. Mon Jul 28 21:23:45 2014
You might consider a Belgian Fence style espalier. In Vermont I have mine 2ft apart, but you may be able to do the more usually recommended 18in. Another term to look for is Lozenge which is basically the same thing. Your trees will be shaped like the letter Y. The two branches overlap with the branches from neighboring trees, forming diamond shapes.
Comment by Ghislaine Sat Aug 2 22:29:01 2014

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