Why hardy herbs suit a Scottish glen

Scottish gardens are not for the faint-hearted. Wind, rain, late frosts and thin, acidic soil test even the most determined plants. Yet the very conditions that make life difficult for tender Mediterranean herbs can be turned to your advantage. Hardy herbs such as thyme, mint and chives evolved in tough landscapes, and they reward a little thoughtful planting with years of flavour. The key is to work with the weather rather than against it.

Thyme: the backbone of the bed

No Scottish herb patch is complete without thyme. This low-growing woody perennial shrugs off cold and drought, and its tiny leaves pack a punch far beyond their size.

Thyme hates sitting wet. In a glen, that means adding plenty of horticultural grit to the planting hole, or growing it in a raised bed or a terracotta pot. A south-facing slope or the base of a warm stone wall is ideal. Avoid rich, manured soil; thyme thrives on lean, gritty ground. After flowering, give plants a light trim to keep them bushy, but never cut back into old wood. Use the leaves fresh with roast lamb, root vegetables, or in a simple herb butter.

Mint and chives: two garden essentials

Mint is almost too easy in a Scottish garden. It loves the damp, cool conditions that many other herbs resent, and it will spread enthusiastically if given half a chance. The golden rule is to plant it in a pot sunk into the ground, or in a bottomless bucket, to stop runners taking over the bed.

Grow mint in partial shade or sun, in soil that stays reasonably moist. In exposed glens, the leaves may be bruised by wind, so a sheltered corner beside a shed or hedge is perfect. Cut stems regularly to encourage fresh growth, and use the leaves in teas, salads, sauces and, of course, with new potatoes. A handful of mint added to a jug of water on a warm day is one of the small joys of a Scottish summer.

Chives are the quiet heroes of the cottage garden. They form neat clumps of slender green leaves, produce pretty mauve pom-pom flowers in early summer, and ask for almost nothing in return. Unlike thyme, they appreciate a little fertility, so a spot with well-rotted compost is welcome. They tolerate partial shade but give the best flavour in full sun.

In a wet Scottish season, the main risk is rot, so ensure the soil drains freely. Divide clumps every two or three years in spring or autumn to keep them vigorous. Snip leaves close to the base, never just the tips, and the plant will keep producing. Use chives in egg dishes, soups, soft cheese and potato salads.

Rosemary, sage and other rugged companions

Once you have the core three, consider adding rosemary and sage. Both are woody, drought-tolerant and deeply useful in the kitchen. Rosemary needs the warmest, most sheltered spot you can offer, ideally against a south-facing wall. In colder glens, grow it in a large pot that can be moved under cover for winter. Sage is slightly hardier and its grey-green leaves look at home among stones and gravel.

Planting, shelter and soil

Practical steps make all the difference in an exposed Scottish garden. First, create shelter. A low hedge of beech or hawthorn, a drystone wall, or even a line of sturdy perennials will slow the wind without casting deep shade. Second, improve drainage. Most hardy herbs detest waterlogged roots, so add grit to heavy clay or build raised beds filled with a gritty, loam-based mix. Third, use microclimates: the sunny side of a shed, a south-facing step, or a gap between paving stones can be several degrees warmer than the open garden.

• Sun: aim for at least six hours in summer, though mint and chives tolerate less.
• Soil: lean and gritty for thyme and rosemary; richer and moisture-retentive for mint and chives.
• Mulch: a gravel mulch around woody herbs keeps leaves dry and discourages slugs.
• Watering: water newly planted herbs in dry spells, but established thyme and rosemary rarely need extra.

Harvesting and kitchen uses through the year

Regular harvesting keeps herbs productive. Cut thyme and rosemary sparingly in the first year, then more freely once established. Mint and chives can be cropped hard from spring onwards. For the best flavour, pick herbs in the morning after dew has dried but before the sun is hot. To preserve the summer glut, dry thyme, rosemary and sage in a cool, airy room, or freeze chopped chives and mint in ice cubes. A simple jar of dried thyme on the kitchen shelf is a quiet triumph of a Scottish garden, proof that even a windswept glen can yield flavour all year round.