Growing Guide
How to Grow Dahlias
Growing dahlias doesn't need to be intimidating. With the right location, a little care, and some patience, you'll be rewarded with incredible flowers throughout the season.
1
Planting
- Dahlias thrive in full sun and well-drained soil.
- Plant tubers in the spring after the danger of frost has passed.
- Dig a hole approximately 4–6 inches deep and place the tuber horizontally with the eye facing upward.
- Space plants approximately 12–24 inches apart depending on the variety.
- Cover with soil and wait to water until sprouts appear to help prevent tuber rot.
- Adding stakes at planting time will help support taller varieties later in the season.
2
Maintenance
- Once established, dahlias are relatively easy to care for.
- Water consistently, particularly during dry periods.
- Use a low-nitrogen fertilizer to encourage strong flower production.
- When plants reach approximately 12 inches tall, pinch them to encourage bushier growth and additional blooms.
- Deadhead spent flowers regularly to encourage continued blooming throughout the season.
3
Digging & Winter Storage
- After the first frost blackens the foliage, it's time to prepare your tubers for winter.
- Cut the stalk down to several inches above the ground.
- Carefully dig around the plant and gently lift the entire tuber clump.
- Shake away excess soil and allow the tubers to dry in a cool, dry location for several days.
- Store them in a breathable container using materials such as peat moss, wood shavings, or vermiculite.
- Keep them somewhere cool, dark, and protected from freezing until spring.
Ready to Grow Your Own?
Pick out a few varieties and start your own collection this spring.