I pinch them back when they have 3-4 sets of leaves. I have some going in the greenhouse now that are going to need to be pinched back before they are ever planted.

Teresa

Thanks Teresa. I will go check them now before the baby wakes up!

does anyone have pitures of how to do this. It all seems so confusing.

The Mid-Island Dahlia Society on Long Island has a well illustrated article on how to top and otherwise control dahlia growth at the link included below.

Here is a link that might be useful: Controlling Plant Growth

What a great link for info, UpWithDahlias! Thanks!

Now, is that recommended only for dinner plate and other big dahlias, or all of them?

Also, can I use the same theory on my gardenia cuttings that are busy building away at strong roots?

Thanks!