How Do You Support Dahlias

Use metal ground staples or tent stakes to anchor it securely. Match the height of the cage (3′ or 4′ tall) to the height of your dahlias. Investing some time early in the growing season will ensure your dahlias can look their best. Keeping the plants tidy also makes deadheading easier and and promotes good health.

Do dahlias need to be staked up?

Staking dahlia plants is important during the season to keep the leafy stems rising to the sun and prevent damage to the flowers. … Another common method is to use stout wooden stakes and twine to tie the stems erect. Stakes should be at least 6 feet (1.8 m.) tall and driven into the ground until firm.

When should you pinch out dahlias?

1. Pinch or “top” your Dahlias when they reach 12-16″ tall for shorter, sturdier, fuller plants with more blooms.
2. Use shears, scissors, or your fingers to top the plants, being mindful not to tear the stem.