Ulmus parvifolia 'Corticosa' in a blue Japanese bonsai pot from Taisho En Japanese bonsai nursery. The tree is in Hokidachi style. Chinese elm grows most optimally in full sun and / or partial shade, filtered light. It needs as much light as possible for healthy development, it also tolerates direct sunlight, but not extreme heat. It can be left outdoors even in the winter months in temperate climates. In winter, it is best to take our plant to a cool but frost-free room. In winter, protect the root ball from frost with a natural covering material (eg straw or mulch). Chinese elm usually tolerates some frost, but it depends on which region it was imported from. Trees from northern China are more frost-resistant than trees from southern areas. Depending on winter temperatures, Chinese plums either drop their leaves or keep them until spring when new shoots hatch. Always keep your soil moist, avoid over-watering and stagnant water. Prolonged dry planting medium can also impair the health of the tree. No feeding is required during the dormant period in winter, however, during the growing season the combination of solid organic fertilizer and well-balanced liquid fertilizer works great (BIOGOLD cube and / or MATSU Bio-Green liquid feed).

In the case of young trees, the bark is slightly soft, full of gaps and cracks. Because of this, mosses grow on it and settle on it very easily, so it is worth removing it from the bark. If the mosses are left on for a long time, they will attract moisture and there is a risk that the bark will rot. Or, worse, the air layer of the tree itself will take on new roots in very uncomfortable places.

Origin from Japan