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You can train clematis horizontally, and it’s actually one of the best ways to get more blooms from your plant.
Training clematis horizontally isn’t just a clever trick; it’s a game-changer for gardeners who want a wall covered in flowers instead of a few lonely blooms at the top.
When you train clematis horizontally, you’re essentially persuading the vine to spread its energy along a wider line, which triggers more flowering side shoots.
In this post, we’ll dig into why you can train clematis horizontally, the simple steps to do it right, and the common mistakes to avoid so your vine thrives.
Let’s get those stems moving sideways.
Why Training Clematis Horizontally Works So Well
Training clematis horizontally works because of a neat botanical quirk that encourages more blooms than vertical growth ever will.
When a clematis grows straight up, its energy focuses on reaching the top, leaving the lower stem bare.
But when you train clematis horizontally, you’re changing the plant’s hormone flow, which breaks apical dominance and wakes up dormant buds along the stem.
Here’s why that matters for your garden.
1. More Side Shoots Mean More Flowers
When you train clematis horizontally, every leaf joint (node) gets a signal to produce a new side shoot.
These side shoots are where the flower buds form, so more side shoots equal a dramatically fuller display.
A vertical stem might give you blooms only at the very top, but a horizontal stem gives you blooms all the way along its length.
It’s like turning a single strand of lights into a whole curtain of them.
2. Hides the Ugly Bare Base
Every clematis grower knows the frustration of a bare, woody base with all the flowers out of sight.
Training clematis horizontally fixes this because you can gently spiral the lower stems sideways across your support.
By weaving the vine horizontally at the bottom first, those lower nodes produce foliage and flowers that cover the unattractive base.
So you get a lush, full plant from ground level up, not just a bare stick with a pretty hat.
3. Maximizes Your Wall or Fence Space
If you have a fence, trellis, or obelisk, training clematis horizontally lets you use every inch of that surface.
Instead of the vine shooting straight up and out of reach, you’ll direct it sideways to fill empty space.
This is especially handy for wide fences where you want a dense, uniform coverage rather than a few tall spires.
And when you train clematis horizontally on a wall, you create a beautiful, tapestry-like effect that’s the envy of the neighborhood.
How to Train Clematis Horizontally: Step-by-Step
Ready to try it?
Training clematis horizontally isn’t complicated, but it does require a gentle hand and a bit of patience.
Here’s the process broken down so you can do it with confidence.
1. Start with Young, Flexible Stems
The best time to train clematis horizontally is when the stems are young, green, and bendy.
Older, woody stems are brittle and will snap if you force them sideways.
So in early spring, as new growth emerges, gently bend each stem to a horizontal angle.
Don’t try to bend it 90 degrees in one go; instead, work gradually over a few days.
2. Use Soft Ties, Not Wire
When you train clematis horizontally, you need to secure the stem without damaging it.
Use soft garden twine, plant Velcro, or even old pantyhose strips to tie the stem loosely to your support.
Make sure the tie is snug but not tight, leaving room for the stem to thicken as it grows.
Check your ties every few weeks during the growing season and loosen them as needed.
3. Weave in a Zigzag or Fan Pattern
Instead of a single straight horizontal line, try weaving your clematis sideways in a gentle zigzag.
This means tying the stem to the left, then bringing it back to the right a few inches higher.
When you train clematis horizontally in this zigzag, you create more horizontal length, which means even more nodes and even more flowers.
Alternatively, you can fan out several stems at different horizontal angles to cover a wide area.
4. Be Patient for the First Season
Don’t expect a wall of flowers the very first year you train clematis horizontally.
The first season is all about building the framework; the plant is busy making roots and settling into its new shape.
By the second year, you’ll see a noticeable increase in side shoots and blooms.
By year three, your horizontally trained clematis will be a showstopper.
Common Mistakes to Avoid When Training Clematis Horizontally
Even though training clematis horizontally is a great technique, a few slip-ups can ruin your efforts.
Here’s what to watch out for.
1. Bending Too Much at Once
The biggest mistake is trying to force a stem into a horizontal position all at once.
Clematis stems are surprisingly rigid, and a sharp bend will crack the outer layer.
Always tie the stem at a slight angle first, then a few days later, pull it a bit more horizontal.
Slow and steady wins this race.
2. Ignoring the Pruning Group
Did you know that your clematis belongs to a specific pruning group?
When you train clematis horizontally, you still need to prune according to its group (1, 2, or 3).
For example, Group 3 clematis blooms on new wood, so you can prune hard in late winter before training those fresh shoots sideways.
Group 1 clematis blooms on old wood, so you should only tidy up after flowering, not before.
Check your plant’s label or do a quick search so you don’t accidentally cut off this year’s blooms.
3. Forgetting to Water at the Base
Clematis roots love cool, moist soil, but the stems and leaves love the sun.
After you train clematis horizontally, the vine covers more surface area, which means more leaves are exposed to drying winds.
Make sure you water deeply at the base of the plant, and consider adding mulch or a low-growing plant at the roots to keep them shaded.
This will keep your horizontally trained clematis healthy and happy.
4. Not Securing the Support Properly
A horizontal clematis is heavy, especially when in full bloom.
If your trellis or wires are flimsy, they’ll sag under the weight.
Before you train clematis horizontally, check that your support is firmly anchored.
Use sturdy screws, heavy-duty eye hooks, or strong tension wires that can handle the load.
So, Can You Train Clematis Horizontally?
You can absolutely train clematis horizontally, and it’s one of the most effective tricks for maximizing flower production.
Training clematis horizontally encourages more side shoots, hides the bare base, and makes the most of your garden space.
Just remember to start with flexible stems, use soft ties, weave gently, and be patient while the plant adjusts.
Avoid the common mistakes like bending too sharply or pruning at the wrong time, and you’ll be rewarded with a spectacular display.
So grab some twine, pick a sunny spot, and start training clematis horizontally today, your future blooms will thank you.