Growing Conditions · Wales
Powys Growing Conditions
Soil, hardiness and a planting calendar for Powys — across 6 postcode districts.
Soil
A slowly draining, acid clay loam that holds winter wet and warms late in spring. It grows acid-loving shrubs, rhododendrons and moisture-lovers well, but vegetables need raised beds, grit and organic matter, and lime if you want a wider range. Its winter wetness makes drainage and grading the first job on any paving, lawn or wall.
Winter hardiness
Rated RHS H4 — the UK mainstream, with winter lows near -8°C. The vast majority of garden plants, perennials, shrubs and trees come through a normal winter unprotected; only genuinely tender exotics need a warm corner or cover.
Rain & growing season
A wet climate (1205mm a year): plants rarely go thirsty, but lean on good drainage, disease-resistant varieties and falls that shed water off paving and lawns. A typical UK growing season (~327 frost-free days), with the last frosts clearing through spring and first frosts returning in autumn.
Planting Calendar for Powys
Timings are guided by this area's ~327 frost-free days and RHS H4 hardiness; adjust for a cold or sheltered garden.
Conditions by Postcode
| Postcode | Soil | Hardiness | Rainfall |
|---|---|---|---|
| LD1 | acid clay loam, seasonally wet | RHS H4 | 1007mm |
| LD3 | free-draining acid loam — the classic 'good garden soil' | RHS H4 | 1186mm |
| LD4 | acid clay loam, seasonally wet | RHS H4 | 1345mm |
| LD5 | shallow, free-draining acid loam over rock | RHS H4 | 1341mm |
| SY16 | acid clay loam, seasonally wet | RHS H4 | 1007mm |
| SY17 | acid clay loam, seasonally wet | RHS H4 | 1341mm |
Planning work in Powys?
Browse Companies House-registered landscaping businesses in the area.
