Cowslip flowering
Primula veris
Window
Typical: 10 Apr – 15 May (2026)
Old meadow indicator.
Relevance to fishing
Meadow indicator — when cowslips peak, the river bank-side grass is into spring growth and water temperatures are reliably over 10°C.
Phenology chain
No chain links seeded for this event yet.
+ I saw this today
Observation history (0)
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