I'll take your established perenial garden and you can have my weed over grown front yard. It does come with two trees, a magnolia and a willow. Both are small. If possible maybe take out parts that are less inspiring and add annuals for the summer. Then with the fall plant bulbs. I love perenial gardens but a little pop is fun and brings sparkle. Plants are expensive and what does not look great this time of year might look stunning at another time. All of this you want to take into consideration before removing perenials permanently. I would love to see pictures of your garden.