Answer: There could be several things happening here. First of all, carnations are not a long-lived perennial - most references suggest renewing plants every three years for best performance. Secondly, are they very crowded or in a shady place? They may be competing for light and stretching to reach it, only to be weighted down by their heavy blooms. An excess of fertilizer can make plants leggy, too. Maybe for now, you can place the planter on an "island" in a tub or larger planter, so the beautiful blooms are reflected from the water's surface! Enjoy!
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