The hydrangea burst in the basin means that there are four ways to solve the problem of not blooming.

Summer is coming, it is already a sunny day in the south, and it will be a fire day soon. If you haven't ushered in the first phase of hydrangea flowers this year, it's time to study hard. The hydrangeas at home haven't blossomed for more than a year, only growing leaves. See how the old flower friends explain it.

Hydrangea florescence from April to June, fruit period from July to August, the new seedlings generally do not blossom in that year, the next year there are flowers. And can not cut off the old branches, because some varieties mainly rely on the old branches to blossom, but some new branches will blossom, when pruning should be very careful.

The reason why hydrangea does not blossom

Excessive nitrogen fertilizer

Hydrangea flowering, not only need nitrogen fertilizer, but also need phosphorus and potassium fertilizer, if nitrogen fertilizer, plant growth is exuberant, but not flowering, but also add phosphorus and potassium fertilizer to promote flower bud differentiation. The sunshine time in autumn and winter is short, and the growth of hydrangea is slow. if excessive application of nitrogen and phosphorus fertilizer, it will cause plant excess nutrition, but it is not easy to differentiate flower buds and affect flowering in the second year.

Solution: can buy ready-made organic fertilizer, pure plant fermentation, nitrogen, phosphorus and potassium rich and balanced, but also rich in trace elements, promote hydrangea rub long, strong plants, more flowering.

Lack of light

Hydrangea generally grows in a semi-shady environment and is more shade-tolerant, but it is necessary to add appropriate light to blossom, otherwise the branches will easily grow, the leaves will be luxuriant, and more nutrients will be consumed, affecting the differentiation of hydrangea flower buds, resulting in no flowering, or very few flowers, and green leaves. Especially in winter, the light is relatively weak, so there is no need to avoid direct sunlight.

The illumination time is too long.

Hydrangea grows in a semi-overcast environment and needs to be supplemented with a certain amount of light, but the light must not be too strong. If you keep it indoors, don't turn on the light at night. If the light time is too long, it will affect the differentiation of flower buds, and it is not easy to blossom. The longest illumination time can not exceed 10 hours, or it will affect flowering, resulting in non-flowering, or the phenomenon of few flowers.

Improper pruning

Many hydrangeas blossom not on new branches, but on old ones. If the old branch is accidentally trimmed off, it will not blossom the next year. And pay attention to pruning after flowering, keep 3-4 bud points on each branch, the rest are all cut off, the best time for pruning is generally 8 low, early September, or it is easy to affect next year's flowers.

The winter temperature is too high.

Hydrangea flower bud differentiation needs cold treatment, the temperature is higher than 10 degrees is not suitable for hydrangea flower bud differentiation, if the temperature is higher than 18 degrees, basically will not blossom.