Hi Flutegirl and welcome to GoY. Sorry but you'll need to dig the bulbs up too, including the tiny ones, as just pulling the tops off isn't going to kill them.

I think some of my Bluebells are Spanish , is it SO important to destroy them .

Nope it is entirely up to you Pammie, if they are in an urban or suburban garden they are unlikely to end up rampaging through the woods and taking over the space the native bluebells need.

There are no native Bluebells around here,so the few Spanish ones we have are allowed to stay. They are rather pretty after all.

Indeed Owdb. it would be a shame to throw them all out if they are not causing a problem.

I read somewhere last year that they do not cross pollinate that much whats to BELIEVE?

I have been removing leaves and flowers from our bluebells and it has made a difference. I will probably have to continue doing that for a few years but I do not want to totally eradicate them just thin them out a bit and especially around the shrub roots.

They most certainly do cross pollinate to the detriment of the English bluebell Nite, take a look at this link:

http://www.brocklands.co.uk/naturalbu/bluebells.html

Thank you everyone for your replies. It seems will just have to get down on my creaking knees and dig out the remaining bulbs and then replant with native bluebells.

Nite when we came here 10 years ago there were lots of English bluebells on the bank opposite our house, and a few Spanish ones. Today they are nearly all hybrids.

Flutegirl only if they are going to cause a problem in the wild...