Thanks for that!
I'd forgotten the flower urns,

I have steps from the conservatory also so that's an extra two - and I'd forgotten the extension floor too!

I'll get my calculator out...

so that's [(6x3) x 10] + [(6x3) x 8] + (4x6) = 348 divided by 8 (didn't realise keyboards didn't have a division sign) which = 44 sprues of flowers which means 15 of each colour.
Was thinking of extending the house but don't think I'll bother!
So does each part number = 1 sprue of 8 flowers?
Elaine