They look planted kind of shallow. How deep did you plant them? I apparantly have the same problem, because mine are full size and blooming and tipping over everywhere. :p
This winter I'm going to re-dig them deeper. Someone said 6 inches isn't too deep.

Thanks Tweedbunny I planted them about 3" down.
I have some more I can try planting deeper and see what happens.
It seems to be a good spot for them.

CDO

I plant my glads 6 inches deep.....and I put stakes in the ground at the same time I plant. I don't worry about the leaves tipping or bending over.....but the flower stems, can take a nose dive into the dirt because they are so heavey. Once the flower stems start to flower, I tie them to the stakes.

If the glads bend and break, where do you cut them back?

I planted mine by directions which was 3 1/2 inches. I even staked them.

We have had unusually high wind and record rain.

Gayle

To heck with the directions--put them 6" down at least. The soil will be a bit cooler down there on hottest days. You'll need stakes, too, no matter what. For the flower stalks if not the leaves too. Glads are really heavy. I got the green painted heavy wire ones at Lowe's, cost 79 cents to a dolllar each. They have bent circle tops so you slip the stalk in the circle.

If you have a bed of glads a grid of garden twine and 4 stakes at each corner of the bed makes a nice support for the leaves and the stems. And when they are fully up you can't see the twine.

Home Depot sells cheap bamboo stakes. I got a 10 pack of 60" stakes for $2. I break them if I don't need 5' and they work great for keeping the Glads from tumbling over.