Dahlias are usually planted about the same time you would plant your vegetable patch. You can buy dahlia plants at the garden centre in summer but many gardeners grow them from tubers.
Planting dahlia bulbs is fairly easy and youll be amazed at the showstopping blooms youll see at the end of spring.
When to plant dahlia bulbs. Keep in mind that the dahlia stem will be 2 3 inches away from the stake. To be more specific ideal time for planting dahlia bulbs is from mid april to may. Keep in mind when growing dahlia flowers that they can reach heights from 1 to 5 feet tall so allowing plenty of space in between the tubers is important.
Depending on how warm the soil is your dahlias will take somewhere around six to eight weeks to sprout. They will grow quickly and the plants will be blooming by mid to late summer. Choosing which variety of dahlia flower you plant can be a little daunting as there are so many.
If grown outdoors dahlias are best planted once the danger of frost has passed. Best time to plant dahlia bulbs dahlia needs a ground temperature of approximately 60 degrees. They do better when the soil is 60 degrees f.
These biennial tubers are planted in the spring and belong to the asteraceae family which include sunflowers and daisies. When how to grow dahlia bulbs. Because dahlias tend to get bushy and send out long feeder roots plant dahlias 30 inches spaced out in rows 36 apart.
Use a well drained soil enriched with plenty of well rotted organic matter. In your region dahlias also need to be lifted out of the ground for winter storage if you want them to bloom next year. In australia october to november is a good timeframe to plant especially if you want to see blooms around christmas and new year.
This typically means that you would plant outdoor dahlias beginning in late may and throughout june. While they will grow on heavy soils you are more likely to need to lift the tender. Many gardeners treat dahlias as annuals.
Since this particular plant requires rich moist soil it is recommended that you add as much humus as possible when preparing your garden bed. These are potted up and brought into growth indoors in late march or early april then planted out in the garden in may once no more frost is forecast. Dahlia bulbs can be planted as late as mid june in most parts of the country.
Dahlias can also be grown from rooted cuttings and from seed. Unlike other bulbs such as tulips dahlias like warm soils so plant your dahlia bulbs during the warmer and longer days of spring. This is mostly possible in spring with longer and warmer days.
Tubers are swollen usually underground parts of a stem or root used to store food by the plant. To prevent frost damage to the young shoot growth plant potted tubers around mid may after last frost. Dahlia bulbs are planted in the spring once risk of frost has passed.
Plant dahlias on free draining lighter soils where they are more likely to survive the winter. Choose a position with full sun to light shade protected from strong winds as much as possible.