D9H - "...over the Winter" means about 5 months. The only way you are going to keep that plant under .5 meter for 5 months is to trim the hell out of it. Here's what I would do:

Re-veg the plant then, when it is healthy and growing again, top it or fim it and seee how it grows. Keep good records of how fast the plant grows. Around December or January (depending on how fast the plant grows and how big you want your starterr plants to be, make some clones from your now "mother" plant and use the new clones for your grow.

That's what I'd do.

PC :smokin: