self seeding grasses

I have had terrible trouble with my grasses miscanthus siensis and rubrum self seeding in the graveled area. I dont want to have the trouble next year so I guess i will have to remove the seed heads early. How do I know I'm not to late ?
Its such a shame to remove them as the main reason of purchasing them was the winter interest . Is there any better behaved ornamental grasses available.

 

Pot them up and sell them on E-Bay!

 

Ha Ha I would if i new one seedling from the other !!! lol
Wouldn't want to sell the wrong item.

 

Someone would buy it anyway. My dad spotted plain old wild dandelion on eBay once, being sold under its botanical name, and featuring a nice closeup of its pretty orange flower head. He checked back on it after the auction had finished and it had been sold.:lollol:

 

Pull them up as they appear. Unless your gravel path is 20 foot long that is!

 

Do you think they are self seeding easily in the gravel ?
I want to move them to my pond edge which is wet clay do you think their is less chance of them self seeding in that area ?

 

They'll seed anywhere they can - it's in their interest to reproduce as far as possible from the mother plant. I've seen grasses growing in the back garden re-appear in the front garden, depending on how the wind might be blowing. The wet clay will not be a deterrent, a lot of grasses their feet damp.

Maybe view them as extra, free plants?

 

At least I can hoe them in the border if need be not like the gravel