How to Grow Herbs in Pots — A Beginner's Guide for UK Gardens

Growing your own herbs in pots is one of the most rewarding things you can do as a gardener. You do not need a big garden, a greenhouse, or even a balcony. A sunny windowsill is enough to keep you in fresh basil, mint, and chives for most of the year. And the best part? You save money on supermarket herb packets that wilt in two days, plus your homegrown versions taste noticeably better.

I turned my sixth-floor balcony into a productive herb garden during lockdown, and I have been helping other people do the same ever since. Here is everything you need to know to get started growing herbs in pots in the UK, even if you have never grown anything before.

Why Grow Herbs in Pots?

Potted herbs have a few big advantages over growing them in the ground. You can move pots around to catch the best sunlight, bring them indoors when the weather turns nasty, and keep them right outside your kitchen door where you will actually use them. For anyone with a paved garden, balcony, or just a windowsill, pots are the obvious answer.

Pots also give you control over the growing conditions. You choose the compost, you control the drainage, and you can move plants into shelter during a UK downpour or a heatwave. And because herbs are naturally compact plants, they do not need huge containers to thrive. A single terracotta window box planter can host three or four different herbs, giving you a mini kitchen garden on a single windowsill.

Choosing the Right Containers

Container choice matters more than you might think. The golden rules are: drainage holes at the bottom, enough depth for roots, and material that suits your watering habits. Terracotta pots look beautiful and let the compost breathe, but they dry out faster. Plastic and glazed ceramic pots hold moisture longer, which can be helpful if you forget to water.

For a serious herb setup, a set of rectangle window box planters with attached trays gives you space to grow several varieties side by side without making a mess. The integrated trays catch drips, which matters a lot if your pots sit on a kitchen surface or indoor shelf.

Whatever you choose, make sure the pot is at least 15cm deep. Shallow containers dry out too fast and restrict root growth, especially for herbs like parsley and coriander that develop taproots. Rosemary and mint need even more room, so give them 20-25cm pots or their own dedicated space.

Best Herbs for UK Beginners

Some herbs are practically foolproof. If you are new to this, start with these five and add more once you have got the hang of them.

Basil — The king of kitchen herbs. It loves warmth and sunlight, so a south-facing windowsill in summer is perfect. Pinch out the growing tips regularly and it will bush out instead of going straight to flower. Keep it above 10°C at all times.

Mint — Almost unkillable. Mint grows like a weed, which is why it is ideal for beginners. Give it its own pot though — mint spreads aggressively and will take over any container it shares. Pick the leaves often and it will keep producing.

Chives — These grow like grass and taste like mild onion. They are hardy, perennial, and come back year after year. Snip what you need with scissors and more grows back within days. They are happy in partial shade too.

Parsley — A reliable performer in UK conditions. It takes a couple of weeks to germinate (be patient), but once it gets going it provides steady leaves for months. It prefers a slightly bigger pot than the others.

Thyme — This low-growing Mediterranean herb thrives on neglect. It likes well-drained compost and does not want to sit in wet soil. Pick it regularly and it stays compact and productive. Great for windowsills that get full sun.

A multi-variety herb seed kit is a brilliant way to try several types at once without buying separate packets. Most kits come with labelled varieties and growing instructions tailored for UK conditions.

The Right Compost for Potted Herbs

Do not use garden soil in pots. It is too heavy, it compacts, and it can harbour pests and diseases. Use a good quality multi-purpose potting compost instead. Look for one that is peat-free and has added perlite or vermiculite for drainage. Herbs hate sitting in waterlogged soil, so good drainage is non-negotiable.

Add a handful of horticultural grit or sand to the mix for Mediterranean herbs like rosemary, thyme, and oregano. These plants evolved in rocky, free-draining soil and they will sulk in rich, moisture-retentive compost.

Mix a slow-release fertiliser into the compost at planting time, and top up with liquid feed every couple of weeks during the growing season. Herbs in pots rely entirely on you for nutrients, so feeding matters.

Planting and Daily Care

Fill your pot with compost to within 2cm of the rim, firm it gently, and sow seeds or transplant seedlings according to the variety instructions. Water gently with a watering can with a fine rose so you do not wash the seeds out.

For the first few weeks, keep the compost consistently moist but not soggy. Once the plants are established, let the top layer dry out between waterings. Stick your finger into the compost up to the first knuckle — if it feels dry, water. If it feels damp, leave it. This simple test prevents the most common herb-killing mistake, which is overwatering.

Most culinary herbs need at least 4-6 hours of sunlight per day. A south or west-facing windowsill is ideal. If your only available spot is shadier, go with mint, chives, and parsley — they tolerate lower light levels better than basil or rosemary.

Harvesting Tips for Maximum Production

The secret to a productive herb pot is harvesting correctly. Always cut from the top of the plant, just above a pair of leaves. This encourages the plant to send out new growth from the sides, making it bushier instead of leggy.

Never take more than one third of the plant in a single harvest. Leave enough leaves for photosynthesis so the plant can recover quickly. In peak summer, you can harvest every week from established plants. Regular harvesting actually tells the plant to produce more, so do not be shy about using your herbs.

Morning is the best time to pick — the essential oils that give herbs their flavour are at their strongest before the sun heats up the leaves. Use scissors or snips rather than pulling, which can damage the stems.

Frequently Asked Questions

Final Verdict

Growing herbs in pots is the single best entry point into edible gardening for UK beginners. It costs very little to start, you see results in weeks rather than months, and the payoff is a constant supply of fresh herbs that taste nothing like the sad supermarket packets.

The Garden Pack Premium Herb Garden Kit with 20 varieties is a great starting point if you want maximum variety from a single purchase. Pair it with a good set of window box planters and a bag of multi-purpose compost, and you have everything you need to start growing this weekend.

Start with the easy herbs, water thoughtfully, harvest often, and you will be amazed at how much you can grow in a tiny space. Your cooking will thank you.