Nellie trees don't bloom for many reasons, not necessarily because of lack of fertilizer. Here are some possible reasons why Nellie trees don't bloom:

Too young: Endurance trees need a certain age to blossom and bear fruit, which usually takes about 3-5 years. If the plum tree is still young, it may take some time to blossom.

Insufficient light: Nelly trees need enough sunlight to bloom. If the planting position is too dark or blocked by other plants, it may affect the flowering of lotus.

Insufficient or excessive water: water is very important for the growth, development and flowering of lotus. If the soil is too dry or too wet, it may cause Nellie trees not to bloom.

Nutrition deficiency: If Nellie trees lack nutrition for a long time, it may affect their growth and flowering. But lack of fertilizer is not the only reason, nor is it an inevitable reason.

Pests and diseases: if the endurance tree is damaged by pests and diseases, it may affect its growth and flowering.

Therefore, if plum trees don't blossom for a long time, it is necessary to comprehensively consider the above factors, find out the problems, and make targeted adjustments and treatments.