The bud scale scars (ring of small ridges) on a branch mark the start of a season’s growth.
Shoot-The length of branch growth in one season. Scaffold limb-A large limb that forms a tree’s framework. Multiple-leader trained trees usually have three to five leaders per tree. In a central-leader trained tree, only one leader is left in the center of the tree. Leader-The uppermost portion of a scaffold limb. Lateral branch-A side shoot off of another branch, usually at a more horizontal angle. Heading (or head cut)-A pruning cut that removes only part of a branch. Crown-The base of the trunk where the tree meets the soil. The strongest crotch angle is 45 to 60 degrees. Crotch angle-The angle formed between the trunk and a limb. It contains specialized cells that seal off pruning wounds from wood rot fungi. Branch collar-The raised tissue at the base of every branch. Once the cordon has reached the desired length, prune the leader back to about 1.5cm (½in) each May. When the cordons reach the top wire, they may be lowered to obtain more length of stem, but no more than 5 degrees at a time and to no lower than 35 degrees so that there is less risk of the stem breaking. Where subsequent growth is poor, incline the tree more towards the vertical until sufficient growth has taken place. Tie the cordon to a bamboo cane fixed to the wires. Prune the leading shoot by one third to a suitable bud and thereafter prune in summer. Trim any side shoots back to three or four buds in March to April. The angle of the main stem slows the movement of sap and encourages more even growth. The root flare should be just under the surface of the soil 
Plant the trees in well-drained soil at an angle of 45 degrees with the scion/rootstock union uppermost and 75-90cm (30in-3ft) apart. If you are planting more than one row, space the rows not less than 1.8m (6ft) apart. The supporting system of posts and wires is the same as for apple and pear cordons. Vertical and double cordons (‘U’-shaped) can also be grown in containers (at least 45cm (18in) wide) in John Innes No 3 compost. Choose a site that is open and as sunny as possible, with shelter from severe frosts that can damage blossom. Container-grown plants can be planted throughout the year Plant one- or two-year-old bare-rooted cordons in winter. If you are growing more vigorous cultivars, double and triple cordons are a better choice of form. 
The oblique cordon is preferable as it encourages the production of sideshoots. Malvern Autumn Show - 22–24 September 2023Ĭordons can be planted and trained obliquely or vertically.RHS Garden Wisley Flower Show - 5–10 September 2023.RHS Garden Rosemoor Flower Show - 18–20 August 2023.RHS Garden Hyde Hall Flower Show - 2–6 August 2023.RHS Flower Show Tatton Park - 19–23 July 2023.
RHS Hampton Court Palace Garden Festival - 4–9 July 2023.
0 kommentar(er)
