Last year posted have one kieffer produces fruit every year. Planted 3 replacements from HD in same spot that are 12 years old and may get one pear on each tree. You all decided Home Depo blooms probably getting in frost pocket like bloom earlier than tree that produces. Was thinking about try grafting some branches because trunk is 8" dia. What type scions do you suggest that would be self fertile late blooming, and hold fruit late?