Plant in an acidic, well-drained but moisture-retentive soil, ideally in a sunny spot. Improve the soil with plenty of composted organic matter or ericaceous compost at planting. Keep plants consistently moist, especially during dry spells, as cranberries prefer boggy conditions. Mulch with ericaceous compost or pine needles to conserve moisture and suppress weeds.
Prune in winter by removing dead, damaged, or weak branches to maintain airflow and encourage healthy growth. Avoid cutting into old woody stems. Fertilise in spring with a slow release fertliser, and top-dress with ericaceous compost to support flowering and fruit set.
Cranberries are typically ready to harvest from late summer into autumn, once the berries are firm and fully coloured. Gently pick berries by hand or shake branches over a sheet to collect ripe fruit, leaving unripe berries to mature.