Garden School:


Garden School:
Teaching this week: Rose pruning (as always!) and water management

Sunday, 2 March 2014

Cotoneaster pruning

This was a fun job - the client had a large shrubby Cotoneaster growing beside the house, which had extended itself over the path, to the point where they could barely squeeze past it.

 It was also completely swamping the raised bed - from this perspective, behind it - and under cover of the foliage, there were half a dozen Elder trees growing, along with a mish-mash of general weeds, all of which were growing pretty much unseen under the mess of Cotoneaster.

Which, to clarify, is pronounced K'tony-aster. Not cotton-easter!

The most familiar one is Cotoneaster horizontalis, whose branches grow in a flattened herringbone pattern, and which can be found ascending up walls. If not supported by walls, it just sprawls wider and wider, but like all of these shrubs, it produced masses of berries, and is therefore valuable as a wildlife feed plant.

I don't know exactly which Cotoneaster this is - it's hard to tell with the deciduous ones, in winter - but it's quite free-standing. It may even have been a chance self-set seedling, as it is planted in a rather odd position. I suppose it's possible that the plan was to have something to break up the sightline from front to back...

Regardless of the species or origin, the treatment was simple - get underneath it, remove all dead branches, remove branches that were too low to the ground, remove branches that were obstructing the path, and those overhanging the bed: then remove a similar amount from the other side, to retain some balance and proportion.

 Here's the result: now we can walk along the path, and we can see the raised bed, and the invading Elder are no more.

The whole process was somewhat similar to the Salix caprea Kilmarnock pruning which I wrote about earlier - rather than just chopping off the bits that get in the way, it's far better to go right back to the main stem of the tree/shrub, and clear it out.

As a side benefit, you often get a nice view of the stem - in this case a rather interesting wind-blown arrangement of stems, almost Japanese in style, possibly?

And here is the pile of branches which I removed - very nearly the same size as what was left!

As I said, a fun job - I enjoy having a good chop now and again, and it's very satisfying to bring a sense of order to a chaotic shrub.

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