Moving into a new property with existing fruit trees can be very exciting, with the promise of ready-made fruit harvests outside the back door without having to plant trees and wait years for them to mature.
The reality is often quite different, as it often turns out you’re inheriting problem fruit trees. You know the ones – the “monster” trees that have been abandoned, neglected or just unloved, and they get a little wild, like the big plum tree on the right in the photo above. (And yes, sometimes you’re inheriting them from your former self, who didn’t know how—or have time—to learn how to prune them. We’ve all been there, give yourself a break…)
Getting them back under control is possible but needs a bit of specialist care – we call it renovation pruning. As the name suggests, it’s all about bringing trees back into good repair and productivity.
How would you prune trees like these?
This example is actually a whole lot of monster trees in an organic orchard that was left unpruned for a few years. They were neglected for years and ended up crowded, tangled, and full of blackberries.
Here’s another typical example of a backyard fruit tree that got away:
In both cases the trees are still healthy, and so the good news is it’s completely possible to bring them back into production and make them manageable again, so if you’ve inherited some fruit trees that haven’t been cared for for some time, don’t despair.
Here’s how we’d approach the first example (you can modify these instructions to suit your own situation of course):
- Firstly, remove all the blackberries. This can be a challenge because blackberries love to regrow, but a combination of grubbing out the canes, cutting the rest very low, and if possible following up with sheep or goats, or mowing regularly should gradually get rid of them. We wouldn’t use poison on them around fruit trees, because it’s not good for the soil.
- Start pruning by removing any dead wood from the trees.
- Decide what shape of tree you’d ultimately like to achieve (e.g. ‘vase’ or ‘central leader’), and select the permanent limbs you’re going to keep in the tree to give you the best approximation of that shape.
- Remove limbs you don’t want.
- Reduce the height of the tree by pruning each retained permanent limb down to a lateral that is at the right height to become the new ‘leader’ of that limb.
- Now do the regular maintenance pruning job on each limb. Starting from the top and working down to the bottom of the limb, make a decision about how to treat each lateral (or side branch), which boils down to either leaving them alone, shortening them or removing them.
Here’s the same trees after the first year’s renovation pruning – the blackberries have started to be removed, suckers have been removed, some limbs have been removed, and some lateral growth shortened. They’re starting to look like fruit trees again!
Renovation pruning has many challenges, including the fact that when you remove a large amount of wood you’re likely to stimulate the tree to grow a whole lot of new wood to replace it, often at the expense of growing fruit.
As we explain in our Pruning by Numbers ebook the way to minimise the shock to the tree and help keep it calm and fruitful is to create a renovation pruning plan over a number of years – the larger the tree, the longer it might take you to finally get it under control.