My bedding plants are beginning to look overgrown and tired. I deadhead them continually, but the stems are growing too high and taking over the bedding area. The plants are similar to a pansy but larger. The flowers are red/white stripes, purple/white stripes and plain blue.
What to Do With Bedding Plants Out of Season
Certified GKH Gardening Expert
If they are getting too high and looking poor, I would suggest cutting them back by about a third to rejuvenate the plants. I am not sure about the type of flowers you are growing, without a picture, but cutting the stems back should help some.