Wake up dormant hydrangeas with these tricks to ensure massive summer blooms
11. Protect Swelling Buds From Late Frost Shocks
Late frosts can be devastating to hydrangeas, especially as buds begin to swell in spring. Keep an eye on weather forecasts and be prepared to protect your plants with frost cloths or old blankets on particularly cold nights.
Cover the plants in the evening, making sure the cover extends to the ground to trap warmth. Remove the covering in the morning once temperatures rise, to prevent overheating and ensure they receive sunlight.
12. Train and Support Stems Now for Massive Summer Flower Heads
As hydrangeas grow, their large, heavy blooms can cause stems to droop or even break. Early spring is the best time to start training and supporting these stems. Use plant supports, such as stakes or cages, to encourage upright growth.
Gently tie stems to the supports with soft garden ties to avoid damaging them. Regularly check and adjust the ties as the plant grows to ensure they are not too tight.
13. Color-Hacking: Adjust Soil pH Early for Blue or Pink Blooms
Hydrangea color can be influenced by soil pH. For blue blooms, the soil needs to be more acidic (pH 5.2-5.5), while pink blooms require more alkaline conditions (pH 6.0-6.2).
To lower soil pH, apply garden sulfur or aluminum sulfate according to package instructions. To raise pH, add lime. Start these adjustments in early spring to give the amendments time to take effect before blooming season begins.
14. Rescue Stressed Hydrangeas With Shade Cloth and Anti-Stress Care
If your hydrangeas show signs of stress, such as wilting or yellowing leaves, they might need additional protection. Use a shade cloth to filter intense sunlight and reduce heat stress.
Additionally, consider anti-stress treatments such as plant tonics or foliar sprays designed to help plants recover from environmental stress. Ensure your hydrangeas have adequate water and nutrients to support their recovery.
