How To Prune Hardy Geraniums After Flowering

Your Cool Home is supported by its readers. Please assume all links are affiliate links. If you purchase something from one of our links, we make a small commission from Amazon. Thank you!

You prune hardy geraniums after flowering by cutting the whole plant back to a few inches above the ground.

This simple technique is the secret to keeping your hardy geraniums looking fresh and encouraging a second flush of blooms.

When you prune hardy geraniums after flowering, you’re not just tidying up, you’re telling the plant to start a whole new growth cycle.

In this post, we’ll cover exactly how to prune hardy geraniums after flowering, when to do it, and the tools you’ll need to get the job done right.

When to Prune Hardy Geraniums After Flowering

Knowing when to prune hardy geraniums after flowering is just as important as knowing how.

1. The First Main Bloom

Most hardy geraniums put on their big show in late spring or early summer.

Once those first flowers start to fade and the petals drop, that’s your cue to get to work.

You want to prune hardy geraniums after flowering when the blooms are clearly past their best but the plant hasn’t started to look ragged.

Catching them at this stage ensures the plant has plenty of energy to push out new growth.

2. The Mid-Season Tidy

Some hardy geraniums will have a smaller, second wave of flowers during the summer.

If you prune hardy geraniums after flowering for the main flush, you’ll often be rewarded with this bonus bloom.

You can do a lighter prune hardy geraniums after flowering again if they get leggy or flop open in the middle.

This keeps the plant compact and stops it from sprawling all over its neighbors.

3. The Autumn Cutback

After the final flowers of the season fade in early autumn, it’s time for one last cut.

Pruning hardy geraniums after flowering in autumn helps the plant stay tidy through winter and reduces the chance of disease.

It also encourages the plant to put its energy into root growth, which sets it up beautifully for next spring.

Why You Need to Prune Hardy Geraniums After Flowering

If you’ve been wondering why this chore is so important, it’s not just about looks.

1. Encourages a Second Bloom

The main reason to prune hardy geraniums after flowering is to trigger a second round of blooms.

When you cut away spent flowers, the plant stops putting energy into seed production.

Instead, it redirects that energy into producing fresh new flower buds.

So, you get to enjoy your hardy geraniums looking vibrant for much longer.

2. Prevents a Messy Look

If you leave the faded flowers on, your hardy geraniums will start to look leggy and unkempt.

The leaves become tired and spotted, and the plant can flop open in the middle.

When you prune hardy geraniums after flowering, you remove that tired growth.

This reveals a clean, fresh base that then grows into a neat, mound-like shape.

3. Keeps the Plant Healthy

Dead and decaying flowers can attract pests and diseases.

By pruning hardy geraniums after flowering, you remove this potential problem.

Better airflow around the plant base also keeps the foliage dry and less prone to mildew.

How to Prune Hardy Geraniums After Flowering: Step-by-Step

Alright, let’s get into the hands-on part of the process.

Here’s your simple step-by-step on how to prune hardy geraniums after flowering.

1. Gather Your Tools

You’ll need a sharp pair of garden shears or secateurs.

Make sure they’re clean and sharp.

Clean cuts heal faster, and blunted blades can crush the stems.

You might also want a pair of gardening gloves, as some hardy geraniums have slightly hairy stems.

2. Use the “Haircut” Method

Don’t overthink the process, you’re simply giving your geranium a massive haircut.

Take your shears and cut the entire plant back to about 5 to 10 cm above the soil.

Don’t worry about being too precise here.

You’ll be surprised how forgiving these plants are.

This is the core of how to prune hardy geraniums after flowering.

3. Clear Away the Debris

Once you’ve cut everything back, pick up all the foliage you’ve removed.

Don’t leave it lying on the soil around the plant.

Removing the old growth helps prevent fungal issues and keeps the garden neat.

You can add it to your compost heap if you like.

4. Water and Feed

After a hard prune, your hardy geraniums need a little TLC.

Give them a good drink of water to help them recover.

A light feed with a balanced fertilizer will give them the boost they need to produce that fresh new growth.

So, How to Prune Hardy Geraniums After Flowering the Right Way?

The best way to prune hardy geraniums after flowering is to cut the plant back hard to its base.

It sounds brutal, but it’s exactly what the plant needs.

Pruning hardy geraniums after flowering prevents them from becoming woody and straggly.

It encourages a mound of healthy, fresh leaves and a second flush of beautiful flowers.

So grab your shears, get out into the garden, and give your hardy geraniums that well-deserved summer cut.

Your plants will reward you with a vibrant display that lasts well into the season.