Planting dahlia tubers is pretty easy to do. But did you know there is a right and a wrong way to plant the tubers? Yes! Learn how to properly plant dahlia tubers with these simple tips. 🌸 Select a spot in your garden that receives at least 6-8 hours of direct sun with well-drained soil. Dahlias love to grow in loamy, fertile soil with good drainage and are not fans of heavy clay soils. You can also amend the soil with sand or organic matter, such as compost, peat moss, and well-rotted manure,