Why Do My Hydrangeas Have Burnt Flowers?
Hydrangeas are beautiful flowers that can brighten any garden or home. However, it can be concerning to see your hydrangeas with burnt flowers. These unsightly blooms can lead to frustration, especially for those who love their plants. Understanding why this happens is key to restoring their beauty.
Common Reasons for Burnt Flowers in Hydrangeas
Hydrangeas, while relatively easy to care for, require specific conditions. Here are the most common reasons your hydrangeas might have burnt flowers.

Excessive Sunlight Exposure
Hydrangeas generally thrive in shade or semi-shade. Direct sunlight can scorch their delicate petals and leaves. If your hydrangea is in a spot that receives too much direct sun, it can lead to burnt flowers.
Solution:
Move your hydrangea to a shadier location. It still needs light, but filtering it will help prevent further damage.
Water Droplet Magnification
Water droplets can act like tiny lenses, intensifying sunlight and burning the flowers. When watering, if droplets sit on the flowers, they can magnify sunlight, leading to burns.
Solution:
Water your hydrangeas in the evening. This allows the water to soak in without creating harmful droplets during the hottest part of the day.
Fungal Infections
Sometimes, brown or burnt spots can indicate a fungal infection. This is often noticeable as white spots on the leaves. Fungi thrive in warm, humid conditions, often leading to more significant problems if not addressed.
Solution:
Treat your hydrangeas with a fungicide or wipe the affected areas with a cloth dampened with alcohol. Ensuring good airflow around the plant can also reduce fungal growth.
Nutrient Overload
Over-fertilizing can burn the roots, leaves, and flowers. New gardeners sometimes believe that more fertilizer equals healthier plants. Unfortunately, that's not always the case.
Solution:
Always follow recommended guidelines for fertilization. Adjust according to your plant's specific needs, especially when it's young.
Overwatering
While hydrangeas need water, they can suffer from too much of a good thing. Overwatering can drown the plant and lead to root rot, causing burnt leaves and flowers.
Solution:
Ensure your pot has good drainage. If you suspect overwatering, consider repotting with fresh, dry soil.
culture_vegetative_hydrangea_hi by Codrean Vlad
Conclusion: Caring for Your Hydrangeas
When you notice burnt flowers on your hydrangeas, it's essential to act quickly. Each of these issues has a straightforward solution. With the right care, your hydrangeas can return to their vibrant, healthy state. Remember that understanding their needs in terms of sunlight, watering, and nutrients will make a world of difference.

FAQs about Hydrangeas
1. How often should I water my hydrangeas?
Water them deeply once a week, but adjust based on rainfall and humidity.
2. Can hydrangeas grow in full sun?
While some can tolerate it, most prefer partial shade. Too much sun can lead to burns.
3. What should I do if I see signs of fungus?
Use a fungicide and improve airflow around the plant.
4. How can I increase the blooms on my hydrangeas?
Ensure they have the right amount of light, water, and nutrients without over-fertilizing. With these tips, you can keep your hydrangeas blooming beautifully and avoid the issue of burnt flowers. Understanding their unique needs ensures they thrive for many seasons to come.