Entering Dahlias in a GCA Flower Show



1. As for all cut stems, dahlias must be shown with foliage, and in this case, this means the first true pair of leaves below the bloom. Dahlia leaves are opposite, meaning they appear in pairs on opposite sides of the stem. Cut below the first pair of leaves or deeper down the stem if you feel a longer stem with more leaves will show your specimen to better advantage.

a. There often will be a single, small leaf between the bloom and the first pair of leaves. It’s okay to remove this, so long as you don’t leave a visible scar.

2. Read the schedule to learn if you must disbud your stems. If the schedule doesn’t specify disbudding, you don’t need to do it. But be aware that many blooms will show much better if disbudded, because the buds often appear as “rabbit’s ears” on either side of a bloom!

3. To disbud, see this drawing from the New England Dahlia Society:

a. I often find 3 buds below the main bud, so be sure to remove any third bud too.

b. Disbud down to #3 in the drawing below if you cut below that set of leaves.





4. It’s best to disbud when buds are small because the scar is less visible, but you also can disbud just before a show. If so, be neat so the scar or stub don’t stand out.

a. The advantage of disbudding early on is that, for some varieties, doing so ensures a stronger, longer stem and a bigger terminal flower.

5. When conditioning your stem, don’t submerge the leaves in water for any length of time – they’ll discolor and turn black if left for several hours or overnight.

6. When choosing a stem to enter, choose a fresh bloom.

a. Petals should be clean, symmetrically arranged, and undamaged.

b. Look at the back of the flower and make sure all the petals on the back are fresh, clean, and undamaged. Pull off damaged petals only if this doesn’t affect overall symmetry and form when viewed from the front.

c. The “nose” or center of the dahlia should be tight, without showing the pollen structure underneath. If you can see a green knob or yellow pollen, the flower is “blown” and not a good choice.

d. The stem itself should be straight and sturdy, with the flower centered on the stem.



e. Here are some examples:





The center of the pink dahlia above is tight and the outer petals are opened fully.



Below, the center, or nose, of this very fresh yellow dahlia has started to open, and the pollen structure is visible. This is what’s called a blown center and indicates a flower past prime.





Below are two more dahlias with blown centers. You have to look closely at the red dahlia to see the green pollen structure inside.





f. Singles, mignon, and collarette dahlias are the exception to point c above. These dahlias can have 2-3 rings of mature pollen showing on the outside rings of the pollen structure. See below:



The bloom on the left is perfect, but the one on the right is past prime - too many of the stamens have matured and been visited by bees. Notice the quality of petals too.






7. Finally, the perfect is the enemy of the blue ribbon! In American Dahlia Society shows, I’ve seen many imperfect blooms win a first place for their class. Judges are aware that weather and many other factors can affect your blooms and are generally forgiving. So go for it!


Source: Julie Sakellariadis 9/15/2024