Plums and Apricots
Despite the relatively cold nights we experienced last winter, they were interrupted by warm days. So, most plum trees are four to six weeks behind their expected flowering dates. They may flower late in summer, but if they are asynchronous with the pollinating varieties, we expect very low plum and apricot yields this year.
Without adequate cold exposure, they may not have fruit or fruit sparingly. The self-infertile varieties need to flower simultaneously as the pollinating variety. Inadequate cold can cause one or both types not to bloom simultaneously. This results in both varieties not flowering when they do not get adequate cold exposure in winter.
Continue to much the soil, and add manure or compost/ fertilizer. Water deeply, at least once a week, twice if the plants are potted. Put up fruit fly traps and perform the first fruit fly prevention spray when they start flowering.