Why a Small Patio Suits Herbs So Well

Even a modest patio — a couple of metres square, a doorstep, a balcony ledge — offers the two things herbs crave most: sunshine and sharp drainage. Most of our favourite culinary herbs come from Mediterranean hillsides, where they bake in full sun and grow in thin, gritty, free-draining ground. They do not want rich, boggy soil and they certainly do not want to sit in a puddle. A container, properly filled and positioned, mimics those conditions far better than most British borders ever could.

Pots also give you control. You can chase the sun around the garden as the season shifts, shelter tender plants from wind, and give each herb exactly what it needs. Mint, which would happily run riot through a flowerbed, stays politely contained. Rosemary, which sulks in heavy clay, thrives in a free-draining mix. And because you are growing at waist height, you will actually pick the leaves rather than admire them from a distance.

The reward is a steady supply of fresh, intensely flavoured leaves from April through to October — and, with a little care, well beyond.

Choosing Pots and Compost

Size matters more than style. A 30cm pot will hold a decent bush of basil or parsley; rosemary, sage or bay will want something closer to 45cm. Herbs crammed into tiny pots dry out within hours on a hot day and never build a proper root system.

Terracotta looks lovely and breathes well, though it loses moisture faster than glazed ceramic or plastic. Whichever you choose, drainage holes are non-negotiable, and a 2–3cm layer of crocks or gravel at the base helps stop the holes silting up.

For compost, a good multipurpose is perfectly adequate for basil, parsley, coriander, chives and mint. For the woody Mediterranean types — rosemary, thyme, oregano and sage — mix in around a quarter to a third horticultural grit or sharp sand. A soil-based compost blended with grit also works well and holds nutrients for longer.

The Best Herbs for Containers

• Basil — thirsty, tender and heat-loving. Sow in late May once nights are warm, and keep it out of cold winds.
• Mint — always in its own pot, without exception, or it will strangle its neighbours.
• Parsley — a biennial, so treat it as a one-season crop. Flat-leaf types have the better flavour.
• Chives — hardy, obliging and quick to regrow after cutting. Pretty pink flowers, too.
• Thyme — compact, drought-tolerant and evergreen in most UK winters.
• Rosemary — a shrub, not a bedding plant. Give it space and a tall pot.
• Coriander — bolts in heat, so sow little and often rather than one big row.
• Oregano and marjoram — trailing habit, excellent for softening the edge of a pot.

If space is tight, start with three: basil for summer cooking, parsley for year-round use, and thyme or rosemary for scent and structure.

Siting, Watering and Feeding

Aim for at least six hours of direct sun. A south- or west-facing wall is ideal, and the warmth radiated back from brick or stone genuinely helps. Shelter matters as much as sun — a windy patio will snap tall basil stems and dry pots out twice as fast.

In high summer, check containers daily, preferably in the morning. Push a finger into the compost: if the top 2cm are dry, water thoroughly until it runs out of the drainage holes. A light sprinkle does more harm than good, encouraging shallow roots. Saucers are useful in July but should be emptied before autumn.

Feed every fortnight from May to September with a liquid fertiliser diluted as directed. Leafy herbs such as basil and parsley appreciate it most; rosemary and thyme need far less and will thank you for restraint.

Harvesting Often for Better Flavour

Regular picking is the secret to bushy, productive plants. Never strip more than a third of the foliage at once, and always cut above a pair of leaves so new shoots form below the cut.

• Pinch out basil tips regularly and remove any flower buds the moment they appear — flowering turns the leaves bitter.
• Snip chives down to about 5cm and they will regrow within a fortnight.
• Take parsley from the outside, stalk and all, leaving the crown to keep producing.
• Nip out coriander and mint flowers to hold the leaves sweet for longer.
• Harvest thyme and rosemary in short sprigs rather than whole branches, and use them fresh or dry the surplus.

Pick just before you cook. The oils that carry the flavour are at their most concentrated in the cool of the early morning or evening, not at midday.

Keeping Herbs Going Through Winter

As September cools, bring basil indoors to a bright windowsill and treat it as a short-term guest. Parsley, chives and mint are hardy enough to stay outside. Rosemary, thyme, sage and oregano will survive most UK winters provided their pots are raised onto feet or bricks so they never sit in standing water — cold, wet roots kill more herbs than frost does.

Water sparingly from November to February, and resist the urge to feed. Then, come spring, top-dress each pot with fresh compost, trim away any dead growth, and you will have a productive little herb garden ready to start all over again.