We recommend using a terracotta, rather than plastic, container and a sandy or loamy compost. Whether your olive is planted in the ground or in a pot it is essential to ensure maximum drainage. If growing an olive tree on heavy clay soil you should dig in plenty of gravel to prevent waterlogging the roots.Click to see full answer. Correspondingly, how do you take care of an olive tree in a pot?Plant your tree in a mix of potting soil and perlite or small rocks. When selecting a container, opt for clay or wood. Plastic containers retain more water, which can be deadly for an olive tree. Place your container grown olive trees in a spot that receives at least 6 hours of full sunlight each day.Similarly, how do you care for an olive tree UK? Add 20% horticultural grit to improve the drainage. Place in a sunny position, keep the soil moist during the growing season and feed with a balanced liquid fertiliser once a month. In winter you can reduce watering but don’t allow the compost to dry out completely. Then, how often should I water an olive tree in a pot? Potted trees will need to be watered more often than trees planted in the ground. Allow the soil to dry somewhat before watering, then water until the soil is soaked. The normal, healthy potted olive tree will need fertilizer twice a year, once in the spring and once mid-summer.How do you grow an olive tree in a pot UK?Plant a pot with plenty of drainage holes and filled with a loam-based compost such as John Innes No 3 with 20 percent by volume added horticultural grit for additional drainage. You can place containers outdoors in summer, and then move them into a cold conservatory, well-lit porch or greenhouse over winter.