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To make potted hydrangeas beautiful and more flowering, the plants must be trimmed. Hydrangea grows vigorously and is resistant to pruning. Generally from the survival of the seedlings, grow to 10-15 cm high, that is, for picking up the heart, so that the lower axillary buds can germinate. Then select the 4 new shoots in the middle and upper part, and remove all the axillary buds in the lower part. When the new branch grows to 8-10 centimeters in length, it will perform a second picking. Hydrangea generally blooms on a two-year-old strong branch. After flowering, the old branch should be cut short, and 2-3 shoots can be kept to limit the growth of the plant and promote new shoots. After the fall, cut the top of the new shoot so that the shoots will not grow. After such pruning, the plant type of the plant is relatively beautiful, which greatly enhances the ornamental value.
How to change clay and trim the hydrangea
Potted hydrangeas are generally changed once a year. It is advisable to change soil in the pot in early March. In the new soil, 4 parts of leaf, 4 parts of garden soil and 2 parts of sand are used to prepare the mixture, and then a suitable amount of cooked cake is used as base fertilizer. To change, the roots of the plants should be trimmed and rot roots, rot roots, and long roots must be cut. After planting the new pots, the soil should be compacted, then irrigated, placed in a shaded place for about 10 days, and then moved outside for normal management.
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