They tend to 'take' better if they're planted in the green - not from bulbs. So wait until the spring, and look for a supplier who can send them with leaves. Obviously, you need to plant them immediately they arrive.

Suppliers advertise in gardening magazines in the spring.

I hope you look for 'English Bluebells' as these are loosing out to the more vigerous Spanish ones.

And I've seen photos in catalogues of so-called "English Bluebells" that were Spanish ones. English bluebells are darker blue and the stems are droopier with the flowers all hanging on one side. Spanish bluebells have flowers all round the stem and are more upright. And the flowers tend to be paler blue - more sky-blue, less inky.

I have planted bluebell bulbs, and hopefully they will look lovely. We already have wild bluebells growing in a few other unattended gardens.