Best Gardening Site

yes.

you can add soil to the areas that dont make it to the patio. also try adding large plants and vines. also high point bushes should help.
rased high point beds can work for the annual you influence to use.
here are a few plants that would look nice in a garden

hydraneas.
they are cold hardy to -30. endless summer is my fav. because it has maxinum blooms

bananas
musa basjoo,
is the most cold hardy banana in the world. it is cold hardy to -4 F and although will not bloom, it will look fantastic near some budding plants.

cannas
they have tropical foliage and large flowers that rise about 2 feet above the leaves. there are many colors from red to orange and yellow, as well as colorless, pink, and even muilticolors.
here is a photo of canna lucfier. this is cold hardy to 0 degress and is a perennial. it has red and yellow flowers

also try camellias
mast camellias are cold hardy to 5 f, but some are cold hardy to 0 or even -5. they are evegreen, and bloom during the spring and some also bloom in the fall.

gardenias
they bloom in the 70s. perfers shade if in a warm summer climate like high 80s and 90s. will bloom in the spring in warm climate. in califorina it will bloom all year.
the most cold hardy is kliems hardy gardines. it is cold hardy to 0. others are cold hardy to 5

pink moon vine
a pink high point vine that is fragrant and tropical looking. cold hardy to 0

jackmans clematis
another high point vine. cold hardy to -20. the flowers are very large

vincas
a large genus of many high point plants. some are cold hardy to -20, and some are cold hardy to 20. be careful when chosing

WARMER CLIMATES
if you live in a warm climate, these are for you

mandevilla.
this is really gorgeous. it is only cold hardy to 30 f , but really is nice and comes in many colors.
here is a photo of one called red riding hood

bougainvilla
sharp thorns, but fantastic flowers.
cold hardy to 30 f

birds of paradise
banana like plant, has flowers that look like a bird called birds of paradise.
cold hardy to 27

hibiscus
these evegreens come in many colors and are a sybol of the tropics particuarly hawaii
cold hardy to 32

GOOD luck……………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………….