I planted 150 or so Dianthus in 30 pots at start of Summer. After they had finished flowering I cut them back. They have now begun to develop new foliage & some plants are showing new bud development & signs of re-flowering.
I am a novice where plants are concerned. I thought Dianthus were annuals & where thrown away after they had finished flowering?
Do Dianthus flower every year?
Can I overwinter these plants? If so; How do I do that? I do not have a greenhouse but a relatively frost-free car-port.
If overwintering; Do I water plants throughout winter?