When to plant Japanese Cherry?

Japanese cherry 'Kanzan' is best planted as a bare-root or container-grown tree in October, November or March, when the soil is workable and the tree is dormant or just breaking dormancy. Choose a position in full sun with plenty of space—this cultivar will reach 6–10 metres tall with a spread of 5–8 metres, so plant at least 7 metres from buildings, boundaries and other large trees. The tree tolerates a wide range of soils including loam, clay and chalky ground, but drainage must be reasonable. Avoid waterlogged sites. Before planting, dig a hole roughly twice the width of the root ball but no deeper—the root flare (where the trunk widens at the base) should sit at or just above soil level. Break up compacted soil at the base and sides of the hole to encourage roots to spread. If your soil is heavy clay, fork in some grit or coarse organic matter to improve structure, though 'Kanzan' copes well with clay if it isn't sodden. Position the tree so the stem is vertical, backfill with the excavated soil, and firm gently with your heel to eliminate air pockets. Water thoroughly after planting—give at least two full watering cans even if the soil seems moist. Drive in a single vertical stake at a 45-degree angle or use an upright stake on the windward side, securing the trunk with a tree tie and spacer to prevent rubbing. Apply a 5–8 cm layer of well-rotted compost or bark mulch around the base, keeping it clear of the trunk itself, to suppress weeds and conserve moisture while the roots establish.