Dahlia cultivation methods and precautions

1. Soil

When growing dahlias, its environmental requirements must be fully met. It should have well-drained sandy loam and generally be equipped with nutrient soil that meets its needs. Usually, five parts of garden soil, two parts of leaf mold, two parts of sand and one part of decomposed organic fertilizer are mixed to meet its soil requirements.

2. Light

Dahlias require relatively sufficient light because they are long-day flowers. An overly dark environment will cause the dahlias to grow too tall and bloom poorly, affecting the normal growth of the plant.

3. Water

Dahlias require the soil to remain slightly moist, neither too dry nor too wet. If it is summer, you must also pay attention to drainage after rain to prevent water accumulation from damaging the root system.

4. Fertilization

Dahlias require sufficient fertilizer. Generally speaking, when planting bulbs in early spring, it is necessary to apply sufficient amount of decomposed organic fertilizer into the planting pots or soil as base fertilizer. During the growing season, apply a thin layer of liquid fertilizer every 10 days or so.

5. Temperature

Dahlia is a plant that is afraid of both cold and heat. Generally speaking, when the temperature at night is below 10℃, you must take measures to prevent cold, and when the temperature at noon reaches above 25℃, you must prepare to take measures to prevent heatstroke and cool down. The ideal growth temperature is between 15℃-25℃, so that it can grow better.

6. Notes

1. During the maintenance process, pay attention to avoid sun exposure in summer and water accumulation after rain. Dahlias are susceptible to a large number of diseases and pests, so they must be observed at all times during maintenance and controlled in the early stages to avoid unnecessary damage.

2. Dahlias are relatively tall and have heavy flower heads, and may fall over due to weather or human factors during the maintenance process. Generally, it is necessary to use pillars to support it in the middle and late stages of its growth. At the same time, because its root system is relatively large, it is best to bury the support pillars in the soil when the bulbs are planted, so as to avoid damage to the dahlia's root system when setting up the support pillars later, and even cause the bulbs to die.