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Holly Bush Covered in Yellow "Flowers" in May: It's Pollen!

6-year-old holly bush suddenly covered in yellowish flowers in May—never seen before. Owner fears disease/dying. Second bush showing same.

Good News

Those "flowers" are male pollen catkins. It means your holly is healthy, mature, and ready to produce berries (if female nearby). Photo comparison confirms.

Why Now?

Age/maturity reached.
Good growing conditions.
Pollination = future berries.

Celebrate! Your hollies are thriving.

Shrubs: Cottony Camellia Scale on Holly: Fall Treatment Window; Holly Bush Decline Linked to Poor Drainage and Excess Water; Blue Princess Holly Scale: Horticultural Oil or Sevin, Plus Fertilizer; Holly Leafminer Infestation: Systemic Insecticide and Fertilization; Reviving a Declining Female Holly Bush: Water, Fertilizer, and Diagnostic Steps; Holly Leaf Spot: Fungicide Too Late Now, Plan for Spring; Holly Leaf Miner Control: Systemic Insecticide Timing and Life Cycle; Holly Bush Turning Brown After Winter: Winter Damage Recovery; Holly Bush Dying: Scale Insects or Winter Injury; Bees on Holly Berries: Beneficial Pollination Activity

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