Why does your Hydrangea macrophylla Magical Blossom have brown leaf tips? Diagnose the cause and fix it with our step-by-step guide.
Hydrangeas have large, thin leaves with high transpiration rates. If soil moisture drops or ambient humidity is too low, the plant cannot transport enough water to the leaf margins, causing tissue death at the tips.
Excessive application of nitrogen-heavy fertilizers can lead to a buildup of salts in the soil. This creates osmotic stress, effectively pulling water out of the leaf tips and causing them to turn brown and crispy.
If the root system is damaged by planting too deep or if the soil is too compacted to allow oxygen exchange, the roots cannot support the heavy foliage of a 'Magical' series hydrangea. This results in marginal necrosis.
Strong, drying winds can strip moisture from the edges of the large hydrangea leaves faster than the roots can replace it. This is particularly common in 'Magical' varieties if they are placed in exposed, breezy locations.
Your plant might also be experiencing one of these issues: