Dahlia, also known as foreign chrysanthemum or Dali flower, is deeply loved by flower enthusiasts for its colorful and diverse shapes. With a long history of cultivation in our country, it has become an indispensable part of family gardening. How to grow beautiful dahlias? This article will introduce the cultivation methods of dahlias in detail, allowing you to easily become a gardening expert.
Selection and Sowing1. Selection: Choose dahlia varieties that are suitable for local climate and soil conditions. Dahlias can be divided into three types: early flowering, medium flowering, and late flowering. The colors include red, yellow, purple, white, and more. It is recommended to choose local varieties or varieties with strong adaptability to improve survival rates.
2. Sowing: Spring or autumn is the best time for sowing. Sprinkle seeds evenly on the soil surface, cover with about 1 centimeter of soil, keep the soil moist, and seeds usually germinate 10-15 days after sowing.
Transplanting and Planting1. Transplanting: When seedlings have 3-4 true leaves, they can be transplanted to a place with sufficient sunlight and good drainage for planting.
2. Planting: Plant the seedlings in the soil, with the depth not covering the roots. After planting, water thoroughly and keep the soil moist.
Fertilizing and Watering1. Fertilizing: During the growth of dahlias, apply a compound fertilizer every 15-20 days to promote plant growth. Before flowering, you can appropriately increase phosphorus and potassium fertilizers to promote flower development.
2. Watering: Dahlias prefer a humid environment. During the growing period, keep the soil moist. In high summer temperatures, increase the frequency of watering to prevent leaf wilting.
Pruning and Shaping1. Pruning: During the growing period, timely remove sick, weak, and withered branches to facilitate ventilation and improve ornamental value.
2. Shaping: According to personal preference, dahlias can be pruned and bundled to form various shapes, such as spherical, pagoda-like, etc.
Disease and Pest Control1. Diseases: Dahlias are susceptible to diseases such as black spot and rust. When diseased leaves are found, they should be cut and destroyed in time to prevent the spread of the disease.
2. Pests: Dahlias are susceptible to pests such as aphids and red spiders. Pesticides can be used for control, and it is important to rotate pesticides to prevent resistance.
The cultivation of dahlias is not complicated. As long as you master the key links such as selection, sowing, transplanting, fertilizing, watering, and pruning, you can easily grow beautiful dahlias at home. Let's take action and add a beautiful touch of color to our homes!