How To Get Clematis To Grow Faster

You can get clematis to grow faster by focusing on the right planting depth, consistent moisture, generous feeding, and proper pruning, but the single biggest secret is giving the roots deep shade while the vines bask in full sun.

This simple trick mimics the clematis’s natural woodland habitat where its feet stay cool and its head reaches for the light.

If you’ve been struggling with a clematis that sits there for months without putting on noticeable growth, you’re not alone.

Many gardeners get frustrated because clematis are often slow to establish in their first year, but with the right care, you can speed up the process significantly.

In this post, we’ll break down exactly how to get clematis to grow faster, covering everything from soil prep to feeding schedules, and we’ll clear up common pruning mistakes that accidentally slow growth.

Let’s dive in.

 

Why Clematis Growth Can Be So Slow And How To Fix It

Clematis vines have a reputation for being stubborn, especially in the first couple of seasons.

Even though you want to get clematis to grow faster, the plant is often busy building a massive root system underground before it puts energy into top growth.

This is normal, but you can hurry things along by understanding exactly what the plant needs.

Clematis struggle when they’re planted too deep or too shallow, when the soil is too dry or too wet, and when they don’t get enough food.

They also sulk if the base of the plant sits in baking hot sun all day long.

When you address these issues, you’ll see your clematis take off with new shoots and vigorous vine growth much sooner.

 

1. Plant Deep For Stronger Roots

One of the most effective ways to get clematis to grow faster is to plant the crown a few inches below the soil surface.

Unlike many other vines, clematis appreciates being planted slightly deeper than it was in its nursery pot.

This encourages the plant to produce multiple stems from below the soil line, which gives you a bushier, fuller vine with more energy.

It also protects the plant if the top growth gets damaged by frost or wind.

In the first growing season, bury the stem so the lowest set of leaves is just above the ground.

This simple trick alone can dramatically speed up how quickly your clematis establishes and starts climbing.

 

2. Give The Roots Shade And The Vines Sun

For clematis to grow faster, you need to nail the “cool feet, warm head” rule.

The roots prefer to stay cool and moist, so they hate being exposed to direct, scorching sunlight.

As the vine climbs upward, however, the foliage and flowers absolutely love full sun for at least six hours a day.

To achieve this, plant a low-growing shrub or perennial at the base of your clematis, or lay down a thick layer of mulch.

This keeps the soil temperature down and prevents moisture from evaporating too quickly.

When the roots are happy and cool, the vine can focus all its energy on producing long, fast-growing shoots.

 

3. Water Consistently And Deeply

Irregular watering is a big reason why clematis vines seem to sit still.

If you want to know how to get clematis to grow faster, the answer is in the soil moisture.

Clematis needs about an inch of water per week, but it prefers a deep, slow soaking rather than frequent shallow sprinkles.

Deep watering encourages roots to grow downward, which builds a stronger foundation.

During the first year, don’t let the soil dry out completely.

A consistent moisture level helps the plant grow faster by keeping the cells turgid and the nutrient uptake flowing.

Make sure the soil drains well, too, because waterlogged roots will rot and stop all growth.

 

Feeding Your Clematis For Speed And Vigor

Fertilizer is the turbo boost your clematis craves.

To get clematis to grow faster, you need to feed it regularly, but you have to do it with the right balance.

A clematis that’s starving will always be slow, no matter how perfect the light and water are.

 

1. Use A Balanced Fertilizer In Spring

In early spring, as new buds begin to swell, apply a balanced fertilizer like a 10-10-10 or a slow-release formula designed for flowering vines.

This gives the plant a strong start and fuels the initial burst of growth.

Follow the package directions carefully.

Overfeeding can burn the roots, but underfeeding leaves you with a weak, slow vine.

A good feeding schedule is to fertilize in spring, then again in early summer, and finally in late summer depending on your clematis type.

 

2. Boost With Liquid Feed Mid-Season

If you want to get clematis to grow faster during the peak growing season, a liquid fertilizer every four to six weeks works wonders.

Liquid feeds are absorbed quickly, giving the plant an immediate dose of nutrients.

Look for a feed high in potassium to encourage flowering, but don’t ignore nitrogen which helps the vine grow leaves and stems.

You can alternate between a balanced liquid feed and a tomato fertilizer for excellent results.

Always water the soil before applying liquid fertilizer to avoid shocking the roots.

 

Pruning Mistakes That Slow Down Clematis Growth

Many gardeners accidentally keep their clematis small by pruning at the wrong time or too aggressively.

Correct pruning is essential if you want to get your clematis to grow faster and fill its space quickly.

 

1. Know Your Pruning Group

Clematis is divided into three pruning groups.

Group one blooms in spring on old wood, group two blooms early summer on old wood, and group three blooms late summer on new wood.

If you prune the wrong group, you can cut off the stems that would have produced flowers, and the plant has to waste energy regrowing them.

This slows down the overall growth of the vine.

For faster growth, always confirm which group you have and prune accordingly.

 

2. Do An Early Spring Hard Prune For Group Three

For group three clematis, cutting everything back to about 12 inches in late winter or early spring is the best trick.

It might seem scary, but it actually produces a much bushier and more vigorous plant.

The new shoots will grow faster and stronger than old, woody stems ever would.

This hard pruning also encourages more blooms and prevents the bottom of the vine from becoming bare and leggy.

In the long run, you’ll get a healthier, faster-growing clematis.

 

3. Avoid Cutting Healthy Green Growth In Summer

Resist the urge to trim your clematis back during the summer.

This is when the vine photosynthesizes and stores energy for next year.

If you cut healthy stems, you remove the leaves that are feeding the roots.

That energy loss translates directly to slower growth.

Instead, let the vine grow wild and bushy.

Only remove dead, damaged, or diseased stems at any time, and that’s it.

 

Common Mistakes That Keep Clematis From Growing Fast

If you’ve tried everything and still can’t figure out how to get clematis to grow faster, check for these hidden issues.

 

1. Too Much Wind Exposure

Wind dries out the foliage and soil, which stresses the plant.

A stressed clematis will slow its growth to protect itself.

Plant near a fence, wall, or sturdy trellis that provides some shelter.

Wind protection helps keep moisture levels stable and allows the vine to push new growth without interruption.

 

2. Overcrowding And Competition

If you’ve planted your clematis too close to other aggressive shrubs or trees, the roots are fighting for water and nutrients.

This competition can seriously stifle growth.

Give your clematis a generous root zone, and keep surrounding plants at least a foot away.

You can also place a large tile or flat stone over the root area to keep it cool (and to prevent weeds from stealing nutrients).

 

3. Poor Soil Structure

Clematis hates heavy clay that stays soggy and also hate sandy soil that dries out instantly.

To get clematis to grow faster, amend your soil with plenty of organic matter like compost or well-rotted manure before planting.

Good soil structure allows roots to spread easily and gives them access to oxygen, which is vital for fast growth.

If your plant is already in the ground, top-dress around the base with compost each spring to improve the soil over time.

 

So, How To Get Clematis To Grow Faster?

You can get clematis to grow faster by planting deep, keeping the roots in cool shade, watering consistently, and feeding with balanced fertilizer.

Make sure you prune according to your specific group, and protect the vine from wind and root competition.

The biggest takeaway is to mimic the plant’s natural woodland edge environment.

Give it the cool, moist, rich soil it loves, and a sunny spot for its top growth, and it will reward you with explosive, fast growth.

Now you know the exact steps to speed up your clematis and get it to fill that trellis or fence in record time.