Soil — How to Grow
Grow from slips (rooted cuttings) rather than seed — start slips indoors in warmth in April. Plant out only once all frost risk has passed, ideally under cover or against a warm wall. The vines need space — allow 50cm between plants. Lift carefully with a fork before the first frosts in autumn; cure at room temperature for 1–2 weeks before storing to develop sweetness.
Space plants 30cm apart
Watch Out For
Regional Growing Guides
Uk
Sow
Apr, May
Harvest
Sep, Oct
Smoke — In the Kitchen
Sweet potato is a versatile root vegetable with a naturally sweet, earthy flavour that intensifies when cooked over fire. Its dense flesh caramelises beautifully when exposed to direct heat, developing a rich, smoky sweetness that complements savoury and spicy seasonings alike. When grilling or roasting sweet potatoes, aim for a slightly charred exterior while keeping the inside tender and moist. This contrast in texture adds depth to any BBQ dish. In BBQ contexts, sweet potatoes hold up well to various cooking methods including foil-wrapped roasting in embers, direct grilling on grates, or slow cooking on a smoker. Their natural sugars react to the heat, creating a caramelised crust that pairs perfectly with robust herbs such as rosemary or thyme, or a sharp vinegar-based drizzle to balance the sweetness. For best results, slice them evenly to ensure uniform cooking and avoid burning thinner edges. When buying sweet potatoes, look for firm, unblemished tubers with smooth skin. Avoid those with soft spots or signs of sprouting. Store them in a cool, dark, and well-ventilated place away from moisture to prolong shelf life. Unlike regular potatoes, sweet potatoes should not be refrigerated as cold temperatures can alter their texture and flavour. Properly stored, they can last several weeks, making them a reliable ingredient for seasonal BBQ menus.
Prep
Scrub well. Prick all over for jacket style. Wedges: cut into 2 cm wedges, no par-cooking needed.
Cook
Jacket: wrap in foil, bury in embers or indirect heat 45–60 minutes. Wedges: direct medium heat 5–7 minutes per side until charred and tender. The natural sweetness intensifies dramatically over coals.
On the Grill




