Thundercloud Plum Poor Bloom: Phosphorus Fertilizer

Six plum trees, same age/nursery/planting day. Three bloom fully; three at 60% but larger. Asks about soil test/additives.

Bloom-Boost Fertilizer

Use fertilizer with low nitrogen, high phosphorus, some potassium. Example: 5-30-5 liquid with chelated iron, manganese, zinc.

Check nursery for "bloom booster" or "flower enhancer" fertilizers (high P, low N). Apply to poor bloomers.

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