I'm not that keen on gardening, I go out every now and then and chuck a few bulbs in. Our garden is a bit of lawn, a few shrubs and a few trees - we've planted a couple of mountain ash and cherry trees and a hawthorn (I think) and horse chestnut have self seeded. The horse chestnut will get too big for our garden but it's only 8 inches tall at the moment so I'm leaving it for now - I doubt we'll live here when it's big enough to be a problem.
I want to put some brightly coloured stuff in that will also be good ground cover, plus I'd like a small magnolia.
Any advice for what to plant please?