Help with designing my Garden?

Ok i live in New jersey i have a very big house and i have three big gardens. the problem is they are all a mess. to start first of all they are all uneven no grass full of weed. I have been trying to work on it for weeks now but cant seem to get any wear. Can anyone please advise a good lanscape design i want a... show more Ok i live in New jersey i have a very big house and i have three big gardens. the problem is they are all a mess. to start first of all they are all uneven no grass full of weed. I have been trying to work on it for weeks now but cant seem to get any wear. Can anyone please advise a good lanscape design i want a lot of color in my garden Help pleasee
Update: Thankz everyone for the help.
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