Posted: 04/01/2016 at 07:54
I agree with Nutcutlet - if you plant a weeping willow you'll not have room for any other trees - they're fast growing and massive - it could also lead to visibility problems on the nearby road and would need constant cutting back, resulting in an ugly unbalanced shape - not to mention problems with drains, foundations, etc. I would strongly discourage anyone who has la garden of under at least an acre in size from planting a weeping willow - a mature tree can cover an area of up to 50 + ft in diameter. http://www.ehow.co.uk/how_7021747_trim-weeping-willows.html
It will also take all the moisture out the soil around it, making it parched and other plants will struggle to grow anywhere near it.
That's not a particularly large area although while it's empty I'm sure it seems it. I see you have a laurel hedge planted along the boundary - that will soon screen you from the road.
You talk of a wildflower meadow - can you elaborate on the sort of wild flowers you want there - there are various types of wildflower mixtures which need different management regimes - cutting etc. If we know a bit more about the type you want we'll be able to make some helpful suggestions re the trees