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What to plant with clematis in a pot is a common question for gardeners who love those gorgeous, climbing vines but only have a balcony, patio, or small courtyard to work with.
You can absolutely plant clematis in a pot, and choosing the right companions to plant with clematis in a pot is the secret to a stunning, full, and healthy container display.
The right companions not only fill out the base of the pot but also protect the clematis roots from harsh sun, add color and texture, and even help with pest control.
In this post, we’ll explore the best plants to pair with clematis in a pot, why certain plants work better than others, and how to set up your container for success.
Let’s dig into the art of companion planting with clematis in containers so you can create a vibrant, flourishing pot.
Why You Should Plant Companions With Clematis In A Pot
Planting companions with clematis in a pot is about more than just making things look pretty, though that’s a huge bonus.
When you plant clematis in a pot, the roots stay relatively shallow and close to the surface, which means they can get too hot and dry out quickly.
That’s why the classic gardening advice is to keep clematis roots cool and shaded, and what you plant with clematis in a pot can do exactly that.
Companion plants act like a living mulch, shielding the soil from direct sun and helping it retain moisture.
Plus, a well-chosen companion can add height, droop beautifully over the pot’s edge, or fill out the base so your clematis vine doesn’t look lonely or leggy.
1. Shallow-Rooted Annuals Are Perfect Pals
When you’re deciding what to plant with clematis in a pot, you want to avoid anything with aggressive, deep roots that will compete for every drop of water.
Shallow-rooted annuals are your best friends here because they stay close to the surface and don’t choke out the clematis’s root system.
Think of plants like marigolds, lobelia, or sweet alyssum.
These little guys are easy to tuck around the edges of the pot, and they’ll happily fill in gaps with their cheerful foliage and blooms.
They also create a lovely carpet of color at the base, which makes your potted clematis look even more lush.
2. Low-Growing Perennials Offer Long-Term Companionship
If you want something that will come back year after year, low-growing perennials are an excellent choice to plant with clematis in a pot.
Hardy geraniums (the sprawling kinds), coral bells (heuchera), and creeping thyme are all fantastic options.
These perennials don’t have invasive roots, and their dense, mounding growth habit perfectly shields the clematis roots from the harsh afternoon sun.
Because they’re perennials, they’ll fill out and mature alongside your clematis, creating a more established and full-looking container garden over time.
Just make sure you give each plant enough room to breathe so they’re not crowding each other out.
3. Trailing Plants Soften the Edges
One of the best ways to make a container with clematis look professionally designed is to add something that spills over the rim.
Trailing plants like trailing lobelia, million bells (calibrachoa), or creeping jenny are perfect to plant with clematis in a pot.
They soften the hard edge of the container and create a lovely waterfall effect that draws the eye down.
This contrast between the upright, climbing clematis and the cascading trailer is truly a match made in heaven.
It also adds another layer of interest and really fills out the visual space of the pot.
4. Herbs Can Be Both Pretty And Practical
Don’t overlook culinary herbs when you’re thinking about what to plant with clematis in a pot.
Herbs like thyme, oregano, and chives are excellent companions.
They are naturally compact, they have shallow root systems, and they thrive in the same well-draining soil that clematis loves.
Plus, many herbs are fragrant, and their strong scents can help deter some common garden pests from bothering your clematis.
So you get the double benefit of a functional kitchen herb garden and a beautiful, protective companion for your vine.
How To Arrange What You Plant With Clematis In A Pot
Knowing what to plant with clematis in a pot is half the battle, but knowing how to arrange them is what makes your pot go from good to breathtaking.
The most successful container arrangements have what gardeners call a thriller, a filler, and a spiller.
Your clematis is the thriller, the tall, dramatic centerpiece that climbs upward.
Your filler plants are the mounding annuals or perennials that sit in the middle and fill out the base.
And your spillers are the trailing plants that hang over the edges.
1. Start With A Large Enough Pot
Before you even start planting, make sure your pot is big enough for all these companions.
A single clematis vine in a pot will generally need a container that is at least 18 to 24 inches in diameter and depth.
If you’re adding multiple companion plants, you might want to go even bigger.
A larger pot gives the clematis roots room to spread out and also provides more soil volume to hold water, which is crucial during hot summer months.
Cramming too many plants into a tiny pot will lead to competition and stress for everyone involved.
2. Place The Clematis In The Center Or Back
When you’re ready to plant, position the clematis in the pot first.
If your pot will be against a wall or trellis, place the clematis at the back so it can climb up the support.
If the pot will be viewed from all sides, plant the clematis in the center with a support structure like a small obelisk or teepee.
Make sure to bury the clematis deep, with at least the bottom pair of leaf nodes underground, as this encourages strong root growth.
3. Surround The Base With Your Chosen Companions
After the clematis is in place, carefully tuck in your companion plants around the edges.
Put your mounding fillers closer to the center and your trailing spillers right at the rim of the pot.
As you plant, always keep the ultimate size of each plant in mind.
Leave a few inches of space between each plant so they have room to grow and get proper air circulation, which helps prevent fungal diseases.
Plants To Avoid Putting With Clematis In A Pot
While there are many wonderful options for what to plant with clematis in a pot, there are also some plants you should steer clear of.
Avoid anything that is an aggressive spreader, like mint, or anything with a massive, greedy root system, like large shrubs or trees.
These plants will quickly overtake the pot and steal all the water and nutrients from your clematis.
Also, avoid plants that have completely different water needs.
For example, don’t pair clematis with succulents or cacti that prefer dry, arid conditions, as the clematis will suffer from the drought.
Stick to plants that like consistently moist, well-drained soil, just like your clematis does.
So, What To Plant With Clematis In A Pot?
So, what to plant with clematis in a pot comes down to choosing shallow-rooted, non-aggressive companions that share similar growing conditions.
You can plant clematis in a pot with hardy geraniums, trailing lobelia, sweet alyssum, coral bells, creeping jenny, and even herbs like thyme to create a stunning and healthy container arrangement.
These companions will keep the clematis roots cool and shaded while adding beauty, texture, and fullness to your pot.
Remember to use a large enough container, arrange your plants with a focal point and fillers, and avoid anything with invasive roots or different water needs.
With the right companions, your potted clematis will thrive and become the centerpiece of your patio or balcony.