Flowering stage of tufted Fulu examination

Clump Fu Lukao, also known as Needle Sky Blue Hydrangea, has a good ornamental value because of its long flowering period and beautiful fragrance. So, when is the flowering time of the Cong Fu Lu examination?

First, when is the flowering period of the Cong Fu Lu examination?

The first florescence is from April to May, the second florescence is from August to September, and sporadic florets bloom one after another in December.

Second, the planting techniques of Fulu Kao.

1. Sowing seeds

When the first batch of seedlings are raised in the greenhouse, due to hybrid seed production, the female parent and the first-stage male parent can be sowed first, and then the second-stage male parent can be sowed one month later, which can ensure the quality of pollination in the later stage. Disinfect the prepared bed soil first. Potassium permanganate, formalin and dimethazone can be used to spray the seedbed with an appropriate proportion of aqueous solution. The bed soil has been sifted, the bed is leveled, and the bottom water is poured. After the water seeps, the seeds are evenly sown on the seedling bed, 750 seeds per gram, and it is best to do some germination treatment before sowing. After the seeds were sown, the prepared sandy soil was evenly sifted on the seedling bed with a thickness of 0.3 inch, then covered with plastic film and arch shed, and the seedlings could germinate in about 7-10 days.

2. Seedling stage management

After the seedlings grow, it should be carefully managed, when the greenhouse temperature is higher, pay attention to water control, to avoid excessive growth of seedlings. When the seedling grows to 6 ~ 7 years high, it can be transplanted in the nutrition bowl, when the seedling grows to 10 years old, it can be directly planted in the seed production shed, and the whole seed production is carried out in the plastic greenhouse in the protected area.

3. Fertilizer and water management

It is better to apply sufficient base fertilizer before planting, and to use N, P, K compound fertilizer. After planting, attention should be paid to watering, fertilization, ventilation, prevention and control of diseases and insect pests. Watering varies according to the seedling stage, depending on the soil condition. One month after planting, topdressing, a small amount of compound fertilizer, farm fertilizer is better, to ensure the growth of seedling stage.

4. Disease control

Fulukao is easy to be infected at seedling stage, such as quenching disease, root rot disease and so on. In order to avoid the occurrence of diseases and insect pests, drugs are given once a week to prevent fungal infections, usually using Bordeaux solution, carbendazim, chlorothalonil and so on. When Phlox grows up to 50cm, he is not afraid of pests, but he should pay attention to Phlox leaf blight. The main feature of the disease is that the lower leaves of the plant first wither and yellow, and gradually develop upward, until the whole branch dies. The disease occurs seriously in old plants, but does not affect seedlings and cuttings with new roots. It can be killed with carbendazim.

Clump Phlox can be planted in a large number of flowers, or in combination with other low shrubs in the flower bed, can reflect a good greening effect. Friends who want to plant can refer to the above.