Dahlia Care &
Growing Instructions
When to Plant
Dahlias are planted in the spring when the ground temperature is ~ 60 degrees or warmer. Planting times will vary depending on the climate of your area. For example, California, Hawaii, and Florida begin planting in March. All areas usually finish planting by the first week of June. Click here to find out when you should plant based on your region!
Where to Plant
Much like us humans, Dahlias need sun to thrive. Dahlias should receive at least 6-8 hours of sunlight every day. They can be grown with less sun, but that means fewer blooms and taller plants. In hot climates (like Southern California) morning sun with afternoon shade could be best for proper growth. No matter where they are planted, dahlias require deep water 3 times a week or more during the growing season.
How to Plant
Dahlia tubers like loosened and well drained soil. If you have thick or heavy soil, make sure to loosen it well. Once soil is loosened and dry and about 55-60 degrees Fahrenheit you are ready to plant! Plant your tubers about 4-5 inches deep. Space plants between 1.5 and 2 feet apart. Do not water your tubers after planting—wait until the sprouts appear, unless you are in extremely hot and dry conditions in which case you may water them immediately. Otherwise, Mother Nature will be enough until the sprouts appear.
What Will They Look Like?
Dahlias are as unique as a snowflake! Neither tuber size nor shape will affect the growth or performance of the plants. All tubers can grow and produce beautiful flowers!
Staking
We recommend staking dahlias that have a height of 3 feet or more. The best time to stake your dahlias is during the planting process so as to avoid damage to the tuber later.
Watering
Most areas have enough rain to fill dahlia water needs until the sprouts appear above the ground. If, however, you are planting in a hot and dry climate, you will need to water once a week to help the tuber establish its root system.