Flowering Plum Pale Leaves and Trunk Swelling: Fertilizer Response and Wait-and-See

Assessing the Symptoms

Pale pink/yellow leaves, leaf drop, no scale bumps, but pencil-eraser holes and a "spare tire" trunk swelling on flowering plum.

Interpretation

• Pale leaves = nutrient issue (possibly iron/chlorosis in alkaline soil).
• Holes = minor insect feeding (not primary cause).
• Trunk swelling = likely normal growth ring or callus, not parasite. Do not cut!

Response to Fertilizer

Miracle-Gro stakes applied—give it time. Flowering plums often green up with nitrogen. Monitor for new growth.

When to Worry

• No improvement in 4–6 weeks.
• Bark cracking, oozing, or sawdust at base.
• Progressive branch dieback.

Key Advice

Don't wound trunk. Water deeply. Reassess in early summer.