Starting Out: Gardening in Scotland

Most seed packets, books and "how to start a garden" advice are written against a UK-wide or English calendar, and Scotland's is shorter: frosts last later into spring and summers run cooler. In year one, check your own last-frost date before sowing anything tender, look properly at your plot, and grow five crops well rather than twenty badly.

Why the packet's dates do not apply here

Frost is what kills tender young plants, and it varies enormously within Scotland. The Met Office's Eastern Scotland summary gives average annual air-frost days ranging from under 40 on the Fife coast to more than 90 over the higher ground of the Lammermuirs and Grampians, and its Northern Scotland summary puts the frost-free season at as little as three months in places. A coastal garden in the Central Belt and an inland plot at altitude are different growing environments, sometimes within the same postcode area. The Scottish frost dates page has the full regional breakdown, station by station. A few rows show the range:

The upland rows are the ones most beginner advice misses: altitude and distance from the sea move frost dates around more than which part of Scotland you are in, and the west coast is generally milder and wetter than the drier, colder east. A coastal Highlands garden can have a milder spring than an inland Central Belt one a few miles from a city centre. Check your own postcode with the Frost Date Calculator rather than going by a packet's printed date.

Frost also varies within one garden. Cold air sinks and pools in the lowest part of a plot, so a dip or hollow can frost harder and later into spring than the ground around it. Notice that before deciding where tender crops go.

Hardiness ratings are a second check when you choose perennials and shrubs. The RHS scale runs from H1aThe RHS's H1a–H7 scale for how much cold a plant can survive outdoors, H1a being tender indoor-only and H7 hardy anywhere in the UK. Full definition → (needs a heated glasshouse) to H7 (hardy below −20°C). H4, −10 to −5°C, is hardy through most of the UK apart from inland valleys, altitude and central or northerly locations, so an H4 plant is at real risk on a northerly or elevated Scottish site.

Two things follow. Do not sow or plant out anything tender on a packet's printed date without checking it against your own last-frost estimate: "sow outdoors in April" written for the south of England can mean weeks too early for an inland Scottish plot. And a shorter season rewards crops that grow fast, tolerate cold and wet, or can sit in the ground waiting, and within a crop an early or quick-maturing variety is often the safer choice.

Look at your own plot first

Before deciding what to grow, spend an afternoon looking at the ground. Four things matter most, and none needs equipment.

Aspect and sun. Watch the plot across a full day. Most fruiting vegetables, such as tomatoes, beans and courgettes, want a good six hours of direct sun to crop well; leafy crops and many herbs tolerate part shade. A shaded plot loses ripening time a short season does not have, so give a sunny spot to anything that must fruit and ripen before autumn. A north-facing or shadowed plot is not a dead end, but it changes what is worth attempting first.

Wind. On an open, upland or west-coast site, wind batters young plants and dries soil faster than the weather alone would suggest, so a windbreak or fleeceA lightweight, breathable fabric laid or draped over plants to trap a little warmth and keep off frost, wind and some flying pests. Full definition → is often a first-season decision, not an extra. A sheltered plot in a built-up area rarely needs to think about this.

Soil type. Pick up a damp handful and roll it. If it rolls into a long thin sausage that can be smoothed to a shiny finish, and is sticky when wet, the soil is clay: heavy, nutrient-rich, slow to drain and prone to baking hard in a dry spell. If it feels gritty and falls apart through your fingers, the soil is sandy: free-drainingSoil that lets water pass through quickly rather than pooling, so roots aren't sitting in wet ground after rain. Full definition → and quick to warm in spring, but low in nutrients and quick to dry out. A slightly soapy, slippery feel that does not clump easily points to silt. Something between those extremes is loam, usually the easiest starting point. The soil type hub covers acidity, liming and pH in depth.

Drainage. Dig a hole roughly 30cm deep, fill it with water and see how long it takes to disappear. Water still sitting there after several hours points to poor drainage, which is worth knowing before committing to crops that rot in wet ground over winter, such as garlic. Water gone within an hour or so suggests free-draining ground, which holds moisture less well through a dry spell.

Cool, damp ground is also why slugs are usually the first pest a beginner meets here, so watch anything just planted out. A soil-testing pH kit is worth adding later if a crop's guide flags pH as make-or-break, as with brassicasThe cabbage family: cabbage, kale, broccoli, cauliflower, Brussels sprouts, kohlrabi, swede, turnip and more, sharing the same pests, diseases and rotation rules. Full definition → and clubrootA soil-borne fungal disease of the brassica family that swells and distorts roots, and survives in soil for years. Full definition →, but the hands-and-a-hole checks are enough to start choosing sensibly.

Pick five things, not twenty

The most common first-year mistake is too many crops, sown too early, with no plan for who waters while you are away for a fortnight in July. Five crops you manage well beat twenty you half-manage. The comparison of Scotland's most forgiving beginner crops goes through which tolerate being ignored for a week, which have a wide harvest window and which need almost no feeding.

Decide early between seed and young plants (plugs or pot-grown starts). Seed is cheaper and gives more variety choice, but asks for the right sowing date, warmth to germinateA seed sprouting: breaking dormancy and putting out its first root and shoot, given the right warmth and moisture. Full definition → and a few weeks of seedling care. Young plants cost more but skip that stage, a reasonable trade in year one, especially for crops that need an early start indoors in a short season. Pick whichever matches the time you actually have.

On an allotment, two other pieces cover what this one does not: the eight real first-year mistakes to avoid and a month-by-month plan for the first season on a new plot. Once you have your handful of crops, the Planting Calendar tool turns "what" into "when", matched to Scottish timing.

Common questions

Sources