Quince quince Quince (Cydonia oblonga) is a small, broad-crowned fruit tree prized for its fragrant, golden fruits used in jellies, marmalades, preserves, and baking. It flowers late compared to apples and pears, helping it escape spring frosts. Many cultivars are grafted onto quince rootstocks that control vigor. In Scandinavian conditions it prefers warm, sheltered sites with reflective heat (south-facing walls). Most cultivars are hardy in Swedish zones 1–3; a few robust selections can cope with colder microclimates if well-sited. Growing conditions LightFull sun; at least 6–8 hours of direct light for reliable flowering and fruiting. Soil typeDeep, moisture-retentive but well-drained loam; tolerates clay if drainage is adequate. Mulch to keep roots cool. Water requirementModerate; keep evenly moist during flowering and fruit swell. Drought reduces fruit set and size. Nutrient requirementMedium; yearly compost plus a balanced, slow-release organic fertilizer in spring. Back to plant list