can someone help

been gardening for many years tried grasses this year i have 2 lovely pennisetum rubrum in pots have put them in cold greenhouse and wrapped with fleece but foliage and plumes are still on them should i cut of now and by how much or leave to spring,thanks.

 

I usually take them down to a couple of inches in height around February. Where are you? I've never fleeced a grass.

When you trim will be up to you, can't see a problem doing it anytime over Winter.

 

Am in edinburgh i believe these grasses are not winter hardy that is why i put some fleece round the pots thanks for advice might leave foliage on and see what happens would not like to lose them.

 

I am not too far just up the road in Angus .

My others grasses in pots out all winter unfleeced and ok last year.

But I dont have this beautie yes for added protecion in your greenhouse sure this would be fine.

I even put my 2 best terracota pots of lavendar cold greenhouse with fleece and bring them back out in spring and they grow perfect and no cracked terracota pots due to frost.