Old tubers of Canna Lilies should be divided in the spring with a sharp knife, allowing a bud to each piece. Plant the pieces 4-5 inches deep with the bud facing up. Few flowers offer the variety, form and colouring as the Dahlias. They are the type of flowers which will stop you in your tracks to admire both the flower and foliage. There are many different types of Dahlias available such as tall-growing varieties suitable for the rear of the perennial border, dwarf types for the annual garden and many varieties which are ideal for the cutting garden.
Dahlias require full sun and thrive the best on a sandy loam soil with good drainage.
Dahlias should be planted when all danger of frost has passed. The tubers are produced in clumps and should be divided so that one tuber is allowed to grow on its own. The bud will develop on the neck of the tuber. Plant the tubers 5-6 inches deep and allow 3 feet between plants for the large varieties and 18 inches for the smaller varieties. Insert a stake which to the flower stem at the time of planting and place it close to the neck of the tuber.