Raised flower bed
Hi .. I've very nearly completed building a corner shaped raised fower bed , now in places it's 400 - 450mm above the original soil level , Please can anyone suggest what type of soil I should be filling it with thank you ? If it makes any difference it's in a shady spot so will be used to grow shade loving plants , ferns etc the top layer say 1" deep will be bark chips to add the woodland feel , but what to use underneath ? Thank you for reading & any advice given 
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As they are so tall, you could put a layer of broken-up polystyrene at the bottom so that less volume of soil etc would be needed and it will guarantee good drainage; Very few plants will send roots down that far. I'd agree with Verdun and use a mix of topsoil, garden compost and bagged well-rotted manure. Bear in mind that topsoil is very heavy (approx. 1kg per litre when wet) so if you use only that, the raised beds will have to have been made very strong.
I'll post a picture hopefully tomorrow once I've got it filled up with a mixture of manure , compost & soil & hopefully you will be able to advise on what plants to use to fill it with , it has 2 levels upper & lower the high level I'd like a nice fern maybe and then a selection of others in the lower section , a picture will help explain
Oh yes Verdun, those would look beautiful, and although they're so delicate looking they actually seem quite hardy. Ours are doing quite well in pots in a shady corner
I will look into those thankyou , this is the home to be fillled
Exciting project Tiny. You could include a climber in your planting scheme too - to train up the fence.