Montauk daisies

I have a large group of Long Island Daisies. The stems are very leggy and thick and the daisies are now about 4 feet tall and falling over. There are no leaves on the lower part of the stems. Can I trim these back and have them survive? The leaves are about 3 feet off the ground. How far back can I cut them and at what time of year?
They never bloom until October or November. They have been this way since they were given to me about 6 years ago.

Your Montauk daisies or Nipponanthemum nipponicums, will respond well to a hard pruning. Their habit is to grow very leggy and without that pruning they will flop over. Leave them up over the winter and in early spring trim them back to 6 inches high.
Don’t be afraid to prune them, they will be fine!

You can also contain their growth during the season by pinching back new buds or growth. This will make them bushy instead of leggy.

Another good thing to do is to divide your ‘daisies’ about every 3 years (also in early spring) or they will become massive.

Nipponanthemum normally bloom around October and will continue until a frost occurs

I hope this helps you!