From Tiny Seeds to a Humming, Scented Border

A friendly guide to sowing, growing, cutting back and enjoying catmint in Hungary.

Come Into the Garden With Me…

Today, we're growing catmint.

And this is one of those plants I wish more beginner gardeners knew about, because it gives an enormous amount without asking for very much in return.

Catmint makes soft, aromatic mounds of grey-green foliage, then sends up clouds of small blue-violet flowers that seem to hum with bees on warm days. It can edge a path, soften the front of a border, tumble gently over a sunny slope and fill the gaps between taller plants without looking heavy.

And yes, cats may be interested too. Some Nepeta plants contain aromatic compounds that make certain cats roll, rub, purr and behave as though the garden has suddenly become the most exciting place on earth. Other cats barely notice. Cats, as usual, have their own opinions.

For Hungarian gardens, catmint has another advantage: once established, it is a tough perennial that handles sunshine and periods of dry weather far better than many fussier flowers.

We'll start with seed, grow the young plants through their first season, find the right place in the garden, learn when to cut them back, and then watch them return year after year.

By the end, I want you to see catmint not as a background plant, but as one of those quiet garden companions that makes everything around it look better.

Come on. Let's find a sunny edge of the garden.

1. Meet Catmint

Catmint belongs to the genus Nepeta, a group of aromatic plants in the mint family. Depending on the species or selection, plants may be compact edging perennials or much taller, looser herbs.

The Holland Kertészet packet is sold simply as Catmint - Nepeta, so in this book we'll stay with the practical growing needs of compact perennial catmint rather than pretending we know a species name that isn't printed on the product.

Catmint or catnip?

The common names can be confusing. 'Catmint' is often used for ornamental Nepeta grown for flowers and border structure, while 'catnip' is commonly used for Nepeta cataria, the species famous for its effect on cats. In everyday gardening, however, the names overlap.

The important thing for us is simple: we're growing a compact, aromatic Nepeta as a perennial garden plant, and the Holland Kertészet listing notes that cats may enjoy the foliage and that dried material can be used in cat toys.

Why gardeners love it

Catmint flowers for a long period, attracts bees and butterflies, tolerates ordinary soil, and after a good trim can often produce a fresh flush of growth and flowers. It also combines beautifully with roses, lavender, salvia, yarrow and ornamental grasses.

2. Finding the Right Place

Before we sow, let's decide where this plant will eventually live.

Sun first

Catmint flowers best in full sun. In Hungary, a position with plenty of morning and midday light is ideal. It can tolerate some light shade, but too much shade usually means looser growth and fewer flowers.

Drainage matters

Catmint is much happier in soil that drains freely than in a rich bed that remains wet for days. Heavy Hungarian clay can be improved with organic matter and, where necessary, a slightly raised planting area so winter water can escape.

Once established, catmint is fairly drought tolerant. That makes it useful in sunny borders around Budapest, dry gardens on the Great Hungarian Plain, and exposed spots where more thirsty perennials constantly ask for attention.

Where it looks best

Because the Holland Kertészet type grows to around 30 cm, think front of the border rather than back. It is lovely along paths, around roses, at the edge of a gravel garden, or spilling softly beside steps.

3. The Catmint We Grow With You

In the current Holland Kertészet range, you'll find Catmint - Nepeta - 0.25 g from Horti Tops, product code B093.

The packet is described as a perennial reaching about 30 cm, suitable for borders, edges and ground cover. It attracts bees and butterflies, and the aromatic foliage may also appeal strongly to cats.

A useful sowing rhythm for Hungary

The webshop recommends sowing in a nursery bed from May to July, then transplanting the young plants in October or November. I like this rhythm because it gives the seedlings summer to establish before they move into their permanent place.

You can also start seed under protection earlier if you enjoy raising plants that way, but there's no need to rush. Catmint is a perennial. We're building a plant for the next several years, not racing toward a single summer display.

Planting combinations

Try catmint with roses for one of the classic garden partnerships: soft blue-violet flowers around the base of upright rose stems. Or pair it with yarrow, lavender, white baby's breath, salvia and grasses for something looser and more natural.

4. Let's Sow

Catmint seed is small, so we want to sow with a light hand rather than tipping the entire packet into one little hole.

Sowing in a nursery bed

From May to July, prepare a fine patch of soil in a nursery bed or sheltered seed area. Remove weeds, rake the surface and water if the soil is dry. Sow thinly, then cover only lightly with fine soil.

Keep the surface gently moist while germination begins. A harsh stream from the hose can move small seeds, so use a fine rose on the watering can or a gentle spray.

Starting in trays

If you prefer more control, sow into a seed tray or modules filled with a free-draining seed compost. Scatter the seeds thinly, cover very lightly and keep the compost moist but never waterlogged.

Once seedlings appear, give them good light. If they are crowded, thin them early rather than allowing a miniature jungle to develop.

Patience, please

Perennial seedlings often look unimpressive at first. Don't judge the future plant by the size of its first two leaves. Your job is simply to produce sturdy, well-rooted young plants.

5. From Seedling to Garden Plant

Thin and pot on

When seedlings are large enough to handle, thin them so each plant has room to develop. If you've started them in a tray, move the strongest into individual small pots or modules.

Water after transplanting and keep them bright. Don't overfeed; compact, sturdy growth is much more useful than a soft seedling racing upward.

Moving them outside

Tray-grown seedlings need hardening off before permanent planting. Introduce them gradually to wind, stronger sun and cooler nights over a week or more.

Autumn planting

For the Holland Kertészet sowing schedule, October-November is the suggested transplanting period. Choose a mild spell rather than frozen or waterlogged weather, and plant into your prepared sunny position.

Space young plants so they can eventually form separate mounds. Around 25-30 cm apart is a useful starting point for a compact 30 cm catmint, although the exact spread will depend on the plant and conditions.

Water them in well, then let autumn rain and cooler weather help the roots settle before winter.

6. Growing Strong Catmint

Watering

Young plants need regular moisture while their roots establish. Once mature, catmint becomes much more tolerant of dry spells.

In a hot Hungarian summer, a plant in the ground may need surprisingly little help once established, while a container-grown plant can dry quickly and need more frequent watering. Always check the soil rather than watering simply because the calendar says so.

Feeding

Don't overfeed. Rich soil and heavy nitrogen can give you lots of floppy green growth. In ordinary garden soil, catmint often needs little more than a modest spring top-dressing of compost.

The famous haircut

After the first major flush of flowers begins to fade, cut the plant back by roughly one-third to one-half, depending on how untidy it looks. This can encourage fresh foliage and another wave of flowers.

It may look alarmingly bare for a few days. Then new shoots appear and the plant becomes tidy again. This is one of those gardening jobs where confidence comes after you've done it once.

7. When Something Goes Wrong

The plant is flopping open

This often happens in very rich soil, too much shade, or after the first heavy flush of flowers. Cut it back, reduce feeding and make sure it is getting enough sun.

Leaves are yellowing

Check the soil first. Constantly wet soil can stress the roots, while a newly planted specimen in a very dry spell may simply need water. The same symptom can have opposite causes, so don't guess.

Very few flowers

Too much shade is the first thing I'd investigate. Next look at feeding: a plant being pushed with nitrogen may make leaves rather than flowers.

Powdery leaves

Powdery mildew can appear in stressed or crowded plants. Improve airflow, avoid creating lush, soft growth through overfeeding, and remove badly affected material if necessary.

My cat flattened it

Yes, this can happen. Some cats roll enthusiastically on Nepeta and may crush a young plant. A small wire basket or temporary guard over a newly planted clump can protect it until it is large enough to cope with feline affection.

8. Flowers, Bees and Cats

When catmint begins flowering properly, the garden suddenly feels busier.

For pollinators

The small tubular flowers are very attractive to bees and other visiting insects. A group planted beside a path lets you watch them at close range without needing a special wildlife garden.

For the border

Catmint is one of the best 'joining' plants. It fills the lower spaces between upright flowers, softens hard edges and repeats colour without demanding attention.

For cats

Some cats react strongly to aromatic Nepeta foliage, while others don't react at all. If yours loves it, consider growing one plant in a slightly sacrificial spot where rolling and nibbling won't ruin your carefully designed border.

The Holland Kertészet listing also suggests drying catmint for use in cat toys. If you do this, harvest clean, healthy foliage, dry it thoroughly in an airy place away from direct sun, and store it dry.

9. Winter, Cutting Back and Keeping It for Years

One of the nicest things about catmint is that autumn is not the end of the story.

What happens in winter?

Catmint is perennial. In Hungary, the top growth may die back or become untidy after frost, while the crown and roots remain alive below ground.

You can leave some stems through winter for structure and cut them down before new spring growth begins, or tidy the plant in late autumn if you prefer. In very cold or exposed places, leaving a little top growth can provide some natural protection.

Spring renewal

In early spring, remove old dead stems and watch for fresh shoots from the base. This is also a good time to divide an older clump if it has become too large or woody in the centre.

Dividing

Lift the clump, split it into healthy sections with roots attached, and replant. Water well while the divisions establish. One mature catmint can quickly become several plants for another border or for a gardening friend.

If you want seedlings, allow a few flower stems to mature seed instead of cutting everything back. Just remember that self-sown seedlings may not behave exactly like the original plant.

10. Your Catmint Cheat Sheet

Choose Holland Kertészet Catmint - Nepeta - 0.25 g, a compact perennial around 30 cm tall.

Sow in a nursery bed from May to July, or start in trays if you prefer more control.

Cover seed lightly and keep it gently moist while germinating.

Thin or pot on seedlings so they develop strong roots rather than compete in a crowd.

Transplant in October-November during suitable mild weather, or establish plants at another appropriate cool-season time.

Give catmint full sun and free-draining soil.

Water young plants while they establish; mature plants tolerate dry spells much better.

Feed lightly. Too much richness encourages floppy growth.

Cut back after the first main flowering flush to encourage fresh growth and more flowers.

Enjoy the bees, butterflies and perhaps an extremely happy cat, then cut old stems back before spring growth begins.

If You Remember Only Five Things…

1. Give catmint sun

More sun usually means a neater plant and more flowers.

2. Don’t drown it

Free-draining soil matters, especially through Hungarian winter weather.

3. Be patient with the seedlings

You're growing a perennial, not an instant summer display.

4. Give it a haircut

Cutting back after the first flush can transform a tired plant into a fresh one.

5. Grow enough to share

The bees may want the flowers. Your cat may want the leaves. You should probably keep some for yourself too.

One Last Walk Around the Garden

Do you remember where we started? With a little packet of seed and a plant that many people know mainly because cats behave strangely around it.

But now we know catmint is much more than that.

We know where to put it, how to raise it from seed, why it likes sun and drainage, when to cut it back and how to keep it coming back year after year.

We know it can soften the feet of roses, edge a path, cover a sunny patch of ground and fill summer afternoons with bees.

And somewhere in the middle of all that, perhaps your cat will discover it too.

That's fine. Gardens are shared places.

Some flowers are for bouquets. Some are for butterflies. Some are for the kitchen. Catmint can be for the border, the bees, the cat and us all at once.

So let it spill a little. Let it hum with insects. Give it that midsummer haircut. And next spring, when the fresh grey-green shoots appear again, you'll know you've made a little part of the garden easier, softer and more alive.

And when you're ready for the next plant…

Come into the garden with me.