Prune Clematis for Top to Bottom Blooms, this is not a general clematis pruning guideline but how to renovate an overgrown or spindly growing one.
Again I need to repeat, this is not how you prune your clematis generally. This post is really about one way to renovate clematis that may be blooming all on top but down below is bare vines yet you don’t want to cut it all off at once.
This is my Warsaw Nike clematis. It is in Group 3, a Summer bloomer that blooms on new wood on into Fall. (it is often sold as Group 2)
Want to know the basics of How to Grow Clematis? I have you covered here.
So let’s get to it and prune clematis for top to bottom bloom!
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Which Clematis Pruning Group
This method will also work on Group 1 & 2, you may sacrifice some blooms on any of them the first season after the renovation prune but it will give you top to bottom blooms. In the long run you get more blooms and a prettier plant.
Note: if you have a group 1 clematis do some research on the particular named variety. Each one can have unique preferences on pruning. But if you only prune back some canes as I show here then you should be fine on most. Group 1 typically only bloom on old wood so keep that in mind.
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When to Prune Clematis
This method can be done from November on into March. I choose November as I can access mine then, come any later and the ground could be covered in snow until June.
(when starting a new garden I do so in Fall as noted in this article, Start a Lazy Gal’s Garden)
This past Summer my Warsaw only bloomed way high at the top and did not re-bloom as prolifically as years prior.
Notice the tangle at the top of the lattice and on the porch rails. If you follow it down you note the bare woody vines towards the base.
I have since learned that Warsaw Nike is actually a pruning group 3 clematis and blooms on new wood. Many suppliers have this mis-marked as a group 2 except for a very reputable grower I get many of my clematis from.
How to Prune Clematis
I start by cutting the entire top back by a third. I just used the porch floor as my guideline and cut across the tangle of vines.
This helps me to see which vines come from which canes at the bottom.
The bottom near the ground is overgrown with other plants which I need to remove to get a clear picture of the base of the clematis and what I am working with. All those plants need to be removed.
Nothing here is dear so I start yanking them out and tossing into the compost bucket. (note: if you struggle with a fungus that can kill back clematis do not compost your vines)
Clearing it all away shows me this…
There are 5 strong woody vines coming from the base and one small one that is very limber.
I pull the skinny limber one to the side so as not to accidentally cut it during my foray with the pruners.
Later you will see what I am going to do with that long skinny vine
I cut one of the thick canes back to the ground then one 12 inches from the ground.
This will encourage new growth lower on the clematis. New growth is a good thing on a type 3 clematis since they bloom on new growth.
The next cane, the center one is cut at about 3 feet long.
The cane on the left is one I left longer, it goes in behind the trellis and comes out at the base of the porch floor.
The cane on the right actually goes behind the trellis and snakes over to the right side and back out around the corner, I left it to emerge from the other side but cut it back to the floor base as well.
Why Prune Clematis at Different Lengths
By cutting the canes at the different lengths I will get new growth and blooms all along the plant from the base all the way to the top.
If you only have 1 or 2 vines coming from the ground, cut it to about 6 inches from the ground. Cutting it will encourage your clematis to send up more vines from the root.
With new clematis I cut it back the first two growing seasons so it sends up lots of vines from the root.
What did I do With the Last Vine?
So what did I do with the last vine left on the ground?
I buried it along the ground, not deep, just under the soil..you can see the leaves on the left and under the bare dirt is the vine.
This will stay this way all winter and if everything goes as planned it will root in more than one spot along the vine…
like this one below…I know it doesn’t look that convincing but towards the center where there are some brownish leaves is a clematis that rooted where it touched the ground.
I will dig this up and replant it elsewhere after severing the vine from the mother plant.
This is called layering..see all about how I propagate Clematis by Layering here. You will love it!
Want to see how I Prune Group 2 Clematis in Spring, you can find that here!
All types of Clematis need a good structure to climb, to build your own see this post: Build an Easy Garden Obelisk
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