Garden in Cumbria whose woodland slopes are aglow with thousands of daffodils in spring (5,4)?

this is a question in a crossword and so far I have the following letters



U_O_N_A_G I have spent couple of hours on internet and still I cannot come up with an answer, can you help!!!!!!!!!!!!

Garden in Cumbria whose woodland slopes are aglow with thousands of daffodils in spring (5,4)?
Could you have some letters wrong? Acorn Bank would fit, it's a garden in Cumbria with more than 60 varieties of daffodils and narcissus.

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