Dahlias are easy plants to grow and yield beautiful blooms from mid-summer through fall. In many respects, “dahlia culture” is similar to “tomato culture.” If you can grow tomatoes in your garden, you can successfully grow dahlias. Dahlias require a site with good drainage and partial to full sun. Young dahlia plants do not need a lot of water; in fact, excessive water can lead to rotting of the plant. For larger plants, a good rule of thumb is to water if the rainfall is less than one inch in seven days. Pots require more regular watering. For the simple enjoyment of spectacular dahlias in your garden, there are two relatively simple actions that will enhance the appearance of the plant. First is tying the plant to the stake several times as it grows. Second is disbudding. Remove the outer two buds from the three that develop at the end of each branch. While that reduces the total number of flowers, many flowers remain and those show up well on the plant. If all three buds are left on the stem, the blooms will tend to be covered up and can be lost in the plant. You can also remove some of the shoots that form along the branch to have stems that can be used in tall vases for elegant bouquets. Your dahlias will continue to bloom prolifically right up until frost.
- Bloom: Early Summer | Summer | Early Fall
- Growth: 12-18 Inches
- Exposure: Full Sun
- Water: Average