How Does the Dahlia Get Through Winter? A Detailed Guide to Winter Care Methods

The dahlia is in fact the dahlia (Dahlia pinnata), also known by the alternative name "heavenly bamboo peony." It originates from the highlands of Mexico at an altitude of 1500 m. The dahlia is very delicate; it is neither cold-tolerant nor heat-tolerant, so in everyday care, when winter arrives, how does the dahlia get through winter?

I. How the Dahlia Gets Through Winter

The dahlia is a summer flower, a plant that is not cold-tolerant; it is mainly its tuberous roots that cannot be frozen. In an environment below zero it is difficult for it to grow normally, and it is very easily damaged. The following year it may not be able to recover, and will not sprout new shoots. However, as long as preparations are made, it can still get through winter safely.

After autumn begins, potted plants should be moved promptly indoors to a sunny, wind-sheltered spot, so that they enter natural dormancy; stop watering, and they can be covered with a plastic bag to keep warm and retain moisture. After the weather warms up the following spring, move them back outdoors. For dahlias planted in the open ground, after the stems gradually turn yellow and dry, the stems above ground should be cut off, a thick layer of soil should be spread over the roots, and straw should be laid on top. After the weather warms up the following spring, the straw can be lifted off and the thick layer of soil removed, and the root tubers can still grow new shoots again.

II. Key Points for Planting the Dahlia

1. Dahlia planting requires a loose, airy, well-draining soil environment; if the soil is compacted, it can easily cause the dahlia to die.

2. When planting the dahlia, it is easy to overwater it, which can cause waterlogging and lead to death.

3. When preparing a high-quality nutrient soil for the dahlia and applying sufficient organic fertilizer, nitrogen fertilizer should be applied frequently, and concentrated fertilizer should be avoided, to prevent root burn and the death of the seedlings.

4. The dahlia prefers a cool climate and can grow normally at 5-35 degrees. The dahlia likes sunlight and a well-ventilated environment, and the light duration per day is best at 10-12 hours.

That is all for the dahlia. When cultivating dahlias, everyone must be careful and patient, and must pay timely attention to abnormal conditions in dahlias, diagnose accurately, and treat them early.