Why do dianthus blooms fall over?

Albany, ME(Zone 4b)

My dianthus desmond plants look healthy, and the buds are on upright stems, but when they bloom they tend to fall over. They're too small to warrant staking. Any suggestions for making the flowers stand up straight?


Thumbnail by LAS14
Dublin, CA(Zone 9a)

When plants grow floppy like that, I would always look at sun, water, and fertilizer. Not enough sun can make things grow leggier which will make them more prone to flopping, and a bit more water/fertilizer than they really need can cause more/faster growth, which will also be less sturdy and more prone to flopping.

Albany, ME(Zone 4b)

Well, I've decided to maximize the inevitable, as Charles DeGaulle would say. I experimented with some plant "cages." Too obtrusive and too expensive. But if I crowd the plants together, I get a nice effect.

The spot gets great sun. Whenever I plant I add compost, rock phosphate and greensand. Drainage is great.

What are other folks' experience with this kind of dianthus? Desmond and Inchmery. Here's a picture of my capitulation.

Thumbnail by LAS14

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