Plum 'Seneca' produces red skinned fruits with a free stone that falls easily away from the delicious bright yellow-orange flesh. This delicious dessert plum is perfect for extending the season when planted with earlier fruiting varieties, as the fruits of 'Seneca' will not ripen until mid September.
Grafted onto a semi-dwarfing rootstock, to produce a compact, productive tree. Plum 'Seneca' is self-fertile and therefore does not require a pollination companion. Height and spread: 2.5m (8'). Rootstock: St. Julien A.
Estimated time to cropping once planted: 2 years.
Estimated time to best yields: 4 years.
Fruit trees do not suffer weed competition well. Keep weeds and grass clear from within a 30cm radius of base of the tree. In spring, while the ground is moist, apply a mulch of well rotted manure or garden compost around the base of the tree, taking care not to mound it up against the stem. This will help to retain moisture throughout the summer. Feed and water plum trees during particularly dry periods.
Care should be taken when pruning plum trees to avoid winter pruning as this leaves plums prone to silver leaf disease. In the first spring after planting, select 3 or 4 well spaced branches on a clear trunk of at least 75cm (29"), and shorten them by two thirds. Remove the central stem to just above the highest of the selected branches. Remove any laterals below the selected branches.
In the following spring, select 2 or 3 sub laterals on each branch and shorten these by half to create a balanced, open framework. Remove any weak or badly placed shoots completely. In future years, plums will require pruning in late spring to remove damaged, badly placed or diseased wood. Thin heavy crops when the fruits reach the size of hazelnuts to prevent the branches from snapping under their weight. Allow one fruit every 7-10cm (3-4") along each stem.
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