Dahlias grow well in both sun and partial shade, but they must be protected from strong winds and flooding, and not planted close to trees with a strong root system.
An important aspect in choosing a place to plant dahlias is the soil - it must be structural.
Dahlia does not like drafts, and excessive thickening and/or insufficient ventilation is undesirable.
Dahlias do not tolerate stagnant water, so it is not recommended to plant them in lowlands or areas with excessive moisture.
Dahlias need to be watered generously 1-2 times a week (if it doesn’t rain), but do not allow moisture to stagnate in the roots: dahlia tubers are prone to rotting. In extreme heat, hilling after watering helps retain moisture.
Before the next watering, the soil from the stems must be raked, the plants watered, and then hilled up again.
During the early stage of growth, seedlings require less water and can be watered once a day on sunny days.
The plant becomes lush at a later stage of growth and consumes a lot of water, so the amount of watering on sunny days needs to be increased.
Dahlia prefers watering before and after sunrise or sunset.