Water and fertilizer management of conical hydrangea
Unlike hydrangea, which needs a lot of water and evaporates a lot during flowering, the whole plant is prone to wilting under the full sunlight at noon on a clear day. Hydrangea plants are healthy and tall, and they should be watered as needed. Never blindly water the roots to cause serious water accumulation.
Trim water-soluble fertilizer should be applied in time after flowering to supplement the nutrition consumed by flowering; Use controlled release fertilizer as base fertilizer before winter and spring, and remember to apply thin fertilizer frequently.
5, cone hydrangea pest control
Conical hydrangea has strong adaptability and few pests and diseases. When planting, pay attention to controlling the spacing reasonably, and don't plant it too closely, which is generally not a big problem.
6. Pruning of conical hydrangea
Hydrangea cones are tall and strong, and its buds are formed on the new branches growing in the season. Its outstanding feature is pruning resistance, which can be carried out after flowering and dormancy.
1, pruning after flowering:
Pruning after flowering is done along the flower branches above a pair of healthy buds. If it is not pruned, the ear can be left on the branches for viewing after air drying in the later period. It is suggested to prune and reshape before germination in spring.
2, dormant pruning:
Before sprouting in spring, pruning should follow the principle of reducing dead branches, cutting off endogenous branches and weak branches and forming full clumps with the aim of beauty, framing, controlling plant height, rejuvenation and blooming. Prune the ground in March or early spring to keep the branches strong. Strong branches will produce bigger spikes. The final plant height and shape can be controlled by manual pruning.