Key Points for Hydrangea Management in the Third Month of Spring
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“In the third month of spring, this is called germinating the old, as both heaven and earth come to life and all things thrive,” during this period, we can see our hydrangeas rapidly sprouting and unfolding leaves. If you want the hydrangeas to grow strong, with large flower balls and successful blueing, the management in the third month of spring is very important.
Key Points for Hydrangea Management in the Third Month of Spring
The growth pattern of hydrangeas is: dormant in winter, sprouting and growing in spring, flowering in summer, and varieties that bloom on new branches can also flower in autumn. In March, hydrangeas will rapidly sprout new buds and grow new branches. The management focus at this time mainly includes the following points.
1. Replace Pot and Apply Base Fertilizer Promptly
Hydrangeas grow very fast. If it has been more than a year since the last potting and soil replacement, then replace the pot and soil while the hydrangeas have just started to sprout. Replace half of the old soil with fertile new soil and add a sufficient amount of fermented organic fertilizer as a base fertilizer at the bottom of the pot.
Slow-release fertilizers can also be used in moderation, but it is recommended not to mix them with the soil. After repotting, you can bury the slow-release fertilizer shallowly around the edge of the pot. This way, if the amount of fertilizer is excessive, you can still dig it out to save it. If mixed with soil, it is difficult to deal with fertilizer damage.
2. Prune Appropriate
If you have repotted in February, there is no need to do it now. However, if there are withered branches or buds, it is recommended to prune them. Since it is cold in winter, some buds may freeze and become necrotic. Remove these buds and weak ones, and only keep some strong branches and plump buds. This way, the flower balls will be larger and less prone to collapsing when flowering.
3. Maintain Sufficient Light
Hydrangeas are somewhat shade-tolerant, but if you want them to grow strong and have high-quality flowers, it is still very important to maintain sufficient light in spring. It is recommended to maintain full sunlight, as more sunlight will make the hydrangeas more sun-tolerant when flowering, and they will not wilt easily.
During the period from sprouting to forming flower buds, it is recommended to have at least 4 hours of direct sunlight every day, preferably maintaining full sunlight.
4. Prevent Fertilizer and Disease Damage
In March, during the rapid sprouting period of hydrangeas, they also need a lot of fertilizer and water. While actively applying fertilizers, gardeners should also pay attention to preventing fertilizer damage. Especially for gardeners who grow hydrangeas in the ground and are used to applying compound or slow-release fertilizers, make sure to remove any fertilizer granules that fall into the hydrangea buds, as they can easily burn the new buds. When applying water-soluble fertilizers, also pay attention to applying thin fertilizers frequently and avoid using thick fertilizers.
Also, in spring, with more rain and high humidity, hydrangeas are prone to gray mold, leading to scars and necrosis of new leaves. It is recommended to spray fungicides on the hydrangeas when applying them to roses, as prevention is better than cure.
5. Start Blueing
Many gardeners are fond of blue hydrangeas and want to successfully change the color of their hydrangeas to blue. If you want to achieve this, starting early is better than starting late, and the longer you persist in blueing, the higher the success rate.
Gardeners with high requirements for blueing should start the process during the dormant period in winter, usually using slow-release blueing agents. If no blueing agents were used in winter, they are generally added to the soil during repotting in spring to increase the success rate of blueing. Slow-release blueing agents are relatively expensive, so if you don't have high requirements for the blueing effect, you can use a more economical method that costs only a few dollars. The specific method will be updated tomorrow, so stay tuned.
The above-mentioned key points for hydrangea management in the third month of spring and the comprehensive method of ensuring full blooms by managing these five points are shared to serve as a starting point to solve your problems with green plants.