Culture skills of Dahlia

Dahlia is a perennial and bulbous flowering plant of Compositae, and its underground root system is also very large, growing many and strong, just like our sweet potato, so it is also called "sweet potato flower" in many places. At the same time, it is precisely because of its large underground roots, it will naturally store a lot of water, so it is very afraid of waterlogging.

Therefore, when we grow and cultivate dahlias, the permeability of the potted soil must be strong, and it must be loose and breathable enough to avoid stagnant water in the basin due to excessive watering, otherwise it is easy to soak the fleshy underground roots of dahlias. Because the root of Dahlia is fleshy and stores a lot of water, it is very afraid of being flooded and is not resistant to water.

If the flowerpot you choose is relatively large, the matrix can be mixed with perlite, vermiculite, rotten leaf soil and so on. Because such a mixed matrix is not only loose and breathable, but also has good drainage, even if occasionally overwatered, it will not cause stagnant water in the basin and rot roots. Because of the strong permeability of the basin soil, it is easy to discharge the excess water from the outlet of the basin bottom to the outside of the basin.

In addition, because the flowering period of dahlias is very long, it lasts for half a year. It can open continuously from May to June every year to November to December, and because of its large flowers and long stems, it is suggested to build a support for it to avoid lodging and affect growth, flowering and ornamental. Especially in rainy weather, the stem of the plant is easily broken by the huge flowers on the branches.

Not only that, because Dahlia prefers semi-shaded growth environment, and summer is the season for its flowering, so reasonable control of light and proper shading are good for its growth and flowering. Because Dahlia is afraid of strong light, especially the exposure of the hot sun, the plant is prone to problems due to dehydration too quickly. It is better to put it in the shade of a big tree in summer, and at the same time, it can also pick up some light through the gap between the leaves of the big tree.

For our basin friends in the southern region, because the summer environment in the southern region is usually hot and humid, if the ventilation condition is too poor, it is easy to cause the underground root of Dahlia to rot. Therefore, summer maintenance needs to pay special attention to shading and cooling treatment, while improving ventilation conditions to avoid rotting roots. This is very helpful for Dahlia to spend the summer safely.

If dahlias are planted in the north of China, the outdoor environment is very suitable for the growth and flowering of dahlias. Therefore, it is generally recommended to put it in an outdoor environment for maintenance, and because the northern area is not as humid as the southern region, it is not so prone to rotting roots. However, whether growing dahlias in the south or the north, the residual flowers should be removed in time after the flowers are withered.

The removal of residual flowers after flowering and proper pruning are very helpful to prolong the flowering period of dahlia and improve the quality of the next round of flowering. Because the flowers of Dahlia are huge and brilliant, the flowering period will consume a lot of nutrients, and timely removal of residual flowers and proper pruning after flowering can save a lot of nutrients, which is very helpful for the plant to restore growth.

However, the time to pick the residual flowers must be grasped, not too early, not too late. If it is too early, it will shorten our viewing time; if it is too late, it may consume too many nutrients, which is disadvantageous to the next recovery of growth and the next round of flowering. Generally speaking, when most of the flowers wilt, they should be pinched off in time and the remaining flowers will be picked off.

Not only that, when the dahlia bud, but also timely topdressing, after all, dahlia during flowering too much consumption of nutrients, and dahlia itself is a very fat-loving plant. Generally, when mixing enough organic fertilizer into the potted soil, dahlias can get sufficient nutrients throughout the summer. During bud gestation, the effect of promoting flower can be achieved by applying some phosphorus and potassium fertilizer, and at the same time, it can meet the needs of flowering.

Time: 2019-05-27 Click: