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8. Late Frost or Weather Damage
Spring frosts can damage developing buds, leading to “bud blast” or no blooms at all. Similarly, excessive rain or hail can injure fragile flower buds. If late frost is common in your area, consider covering peonies with frost cloth on cold nights.
9. Disease or Pests
Botrytis blight (gray mold) and other fungal diseases can attack peony buds and foliage, causing them to rot or fail to open. Ensure good air circulation, avoid overhead watering, and clean up old plant debris in fall.
10. They’re Just Too Old (or Never Divided)
While peonies are long-lived (some can thrive for decades!), old, overcrowded clumps may stop blooming. If your plant is a decades-old heirloom that hasn’t bloomed in years, it may benefit from lifting and dividing in early fall.
Final Blooming Tip:
Peonies are creatures of habit. Once they’re happy, they’ll bloom reliably year after year. Patience, proper care, and a good planting spot are your best tools.
So, don’t give up on your bloomless beauties—just give them what they need, and soon enough, they’ll reward you with an unforgettable show.
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