Do Dahlias Grow Well In Pots. For best results plant one dahlia per containerVarieties that reach mature heights of no more than 2 feet or less are well-suited for growing in containersLarger varieties may also be grown in containers but require proportionally larger containers. Its also a good idea to put the taller varieties in heavy pots so a stiff wind doesnt blow them over.
But clamping back stimulates the plants to grow more branches and produce tons more flowers. They also will need to be regularly fertilized during the growing season and many will need to be staked so they dont fall over. If plants are about 8 to 12 inches tall use sharp scissors to cut off the top few inches of the plant just above a set of leaves.
To get a flowering plant early pots with dahlias can be placed in a warm well-lit room.
It is advisable to. Discover some of the best dahlia planting combinations to try below. The dwarf varieties can be grown as bedding while more compact varieties grow very well in pots while. Once theyve sprouted place the pots under grow lights or in front of a sunny window a south-facing window is best.