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I'm looking to buy 20-50 bluebells (Hyacinthoides non-scripta) to plant at the base of a tree.

I've looked at the major seed and plant companies but they are very expensive. eBay have some at reduced rates, but I'm worried about the quality.

Where do you recommend I buy them (in the green)?

If I plant them now will they flower this year?

Try this
http://www.gardensupplydirect.co.uk/bulbs_in_the_green/10015_0c.html