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Clematis can be trained to grow downwards, and with a little help, it’s a beautiful way to showcase this vigorous climber.
You see, clematis doesn’t naturally grow downwards on its own, but it absolutely can with the right support and a bit of guidance from you.
If you’ve been wondering whether clematis will grow downwards when you plant it at the base of a wall, fence, or arch, the answer is a resounding yes.
The trick is understanding how this plant’s growth habit works, and then using that knowledge to your advantage in the garden.
In this post, we’ll explore why clematis can grow downwards, the simple methods to make it happen, and the best varieties to try it with.
Let’s dig in and see how you can get your clematis to tumble and cascade in a stunning downward display.
Why Clematis Can Grow Downwards With Support
Clematis can grow downwards because it’s a scrambling climber that uses its leaf stalks to grab onto whatever is nearby.
These leaf stalks wrap around thin supports like twine, netting, or trellis wire, and they don’t really care about the direction.
So if you provide a downward-pointing support, the clematis will happily follow that path and grow downwards.
It’s not that the plant has a built-in downward instinct, but rather that it responds to the physical structure you give it.
When you let clematis grow downwards, you’re essentially tricking the plant into thinking it’s climbing, while it’s actually cascading.
Here are the main reasons why this works so well for clematis.
1. The Plant’s Natural Climbing Mechanism
Clematis climbs by wrapping its leaf stalks around anything thinner than about half an inch.
This is a purely mechanical response, so the direction of the support doesn’t matter to the plant.
When you drape a string or wire downwards, the leaf stalks will latch on and the vine will grow downwards along that line.
This is the same reason clematis will grow upwards, sideways, or even in a spiral, it just follows the support.
So yes, clematis can grow downwards as long as it has something to wrap around.
2. Gravity Works With You, Not Against You
If you tie the main stems loosely to a downward support, the weight of the plant will help it settle into that direction.
Unlike true trailing plants that naturally droop, clematis will stay upright if left alone, but with gentle guidance, it conforms.
You just need to weave the young shoots through the support as they grow, and they’ll take the downward path.
This is a great trick for covering the front of a raised bed or the top of a retaining wall.
3. It’s All About the Support Structure
The key is to provide a framework that encourages downward growth, like a fan trellis that’s mounted upside down.
You can also use a sturdy mesh or wire grid attached to the top of a fence, letting it hang down.
Once the clematis grabs on, it will grow downwards naturally, creating a leafy curtain.
You’ll be amazed at how quickly it takes to this new direction once the support is in place.
How to Train Clematis to Grow Downwards
Training clematis to grow downwards is easier than you might think, and it only takes a few simple steps.
Start by planting your clematis at the top of the structure, such as the top of a wall, rather than at the base.
If the plant is already established, you can carefully bend the stems over the edge and tie them to a support.
Here’s a step-by-step guide to getting that beautiful cascading effect.
1. Choose the Right Planting Spot
For the best results, plant your clematis at the top of the area you want to cover.
This could be the top of a slope, a raised bed, or a tall container placed on a ledge.
Position the roots in the soil and let the stems flop over the edge, guiding them to a downward support.
Make sure the roots are in cool, shaded soil, even if the top of the plant gets full sun, clematis loves that.
2. Provide a Downward Trellis or Netting
You need something for the leaf stalks to grip, so install a trellis, netting, or wire mesh that hangs downwards.
Attach this to the top of your wall or container, letting it drape down the front.
As the clematis grows, gently weave the new shoots through the mesh or tie them loosely with plant ties.
This will encourage the vine to grow downwards instead of reaching for the sky.
3. Tie and Weave as It Grows
Check your clematis weekly during the growing season and redirect any shoots that try to grow upwards.
You can do this by wrapping the leaf stalks around the downward support or using soft twine to secure the stems.
Within a few weeks, the vine will adjust and the new growth will naturally follow the downward path.
It’s a low-maintenance task once the plant understands what you want it to do.
4. Prune to Encourage Bushy Downward Growth
Pruning your clematis correctly will help it branch out and cover more space.
For varieties that bloom on new wood, cut them back hard in early spring to promote fresh, vigorous shoots.
These new shoots will be more flexible and easier to train to grow downwards.
For spring-blooming types that flower on old wood, prune lightly right after flowering to shape them.
This keeps the plant tidy and encourages plenty of growth to cascade downwards.
Best Clematis Varieties for Growing Downwards
Not all clematis are created equal when it comes to growing downwards, but most will cooperate with a little training.
Here are some of the best types to use for a cascading effect.
1. Clematis montana
This is a vigorous, fast-growing variety that’s perfect for covering large areas quickly.
It produces masses of small flowers in spring and will happily grow downwards once trained.
Its long, flexible stems are easy to weave through netting or wire.
2. Clematis armandii
This evergreen clematis keeps its leaves all year round, making it great for a permanent green curtain.
It has fragrant white or pink flowers in early spring and is quite robust.
You can guide it to grow downwards over a wall or fence with ease.
3. Clematis viticella
These are late-flowering varieties that are incredibly reliable and easy to prune.
They have a more modest growth habit, which makes them perfect for smaller spaces or containers.
You can let them tumble downwards from a pot on a high shelf or wall.
4. Large-Flowered Hybrids
Many of the showy hybrids, like ‘Nelly Moser’ or ‘Jackmanii,’ can also be trained to grow downwards.
They just need a bit more patience and regular tying because their stems are thicker.
The payoff is huge, dramatic blooms hanging down like living jewels.
So, Will Clematis Grow Downwards for You?
Yes, clematis will grow downwards for you if you provide the right support and a little guidance.
It’s not a natural trailing habit, but this versatile climber adapts beautifully to a downward direction.
By planting at the top of a structure and training the stems onto a downward trellis, you’ll get a gorgeous cascade.
Whether you’re covering a wall, a fence, or a raised bed, clematis can grow downwards to create a stunning display.
With the right variety and a bit of patience, you’ll have a lush, blooming curtain in no time.
So go ahead and give it a try, your garden will thank you for the unique vertical interest.