The three secrets of raising hydrangea are the activators of flowering.

Hydrangea, summer is its full bloom, blooming piece by piece, each is a big flower ball. However, to achieve this effect, the maintenance of hydrangea, we need to pay attention to three little secrets, these three secrets are the "activator" of hydrangea flowering.

1. The secret of soil allocation

Hydrangea is not too demanding on the soil, it likes water, can not lack of water, but does not like the root system in the sticky soil for a long time. Generally speaking, the soil with good ventilation and drainage and rich nutrition can be suitable for the cultivation of hydrangea.

Flower friends can use the three-in-one basic nutrient soil of peat, perlite and vermiculite as the basis to add rotten leaf soil, garden soil or red jade soil, or you can use the usual soil.

In addition, to cultivate hydrangea, flower friends can also prepare the soil according to the species:

(1) cultivated garden hydrangea, cone hydrangea and North American hydrangea: 6 parts of peat + 3 parts of garden soil + 1 part of perlite, or 4 parts of small grains of red jade soil + 4 parts of rotten leaf soil + 2 parts of coarse sand.

(2) when cultivating Hydrangea mandshurica, it not only needs good drainage, but also can not be dry through lack of water; 6 parts of red jade soil or immortal soil + 4 parts of deer marsh soil or coarse sand can be used, and the formula soil can be changed once every two years after adding horticultural slow-release fertilizer.

2. The secret of watering

Hydrangea is a plant that likes water, especially in summer, if the soil is drained too fast, it may be short of water at noon in less than a day. Therefore, when preparing soil for hydrangea, we should have more water-retaining materials such as garden soil, rotten leaf soil or vermiculite. In addition, watering can be dry and thoroughly watered, and leaves can be sprayed with a spray can in summer to cool down and humidify.

3. The secret of fertilization

Hydrangea needs a lot of nutrients because of its large number of flowers, long florescence, large and thick leaves. Flower friends can fertilize hydrangea according to the following points:

(1) Base fertilizer in winter

Flower friends can use 7 parts of fermented cake fertilizer + 3 parts of bone meal mixed fertilizer. The suitable period of fertilization is from late December to early February of the following year. Garden planting should be used only once, more; potted plants should be used several times and a small amount.

(2) topdressing in spring and summer

After the hydrangea flower needs to be fertilized, the flower friends can use the organic nutrient solution commonly used in flowers. According to the different flowering period, the general early flowering varieties were from mid-May to June, the late flowering varieties such as Hydrangea were from August to early September, and organic liquid fertilizer was applied 1-1.5 months after flowering. Fertilizer can be diluted 500 times and can be applied once a week.