There are perennials for almost any landscape or garden situation.
Roof top perennial pllants in pots.
While most are plain green look for types with a mottling of dark red or white edges for extra interest.
Perennial plants are those that return year after year in the garden and grow larger every year that goes by.
In all my years of rooftop gardening i ve never had this be an issue but let s play it safe.
The first thing you could do is nothing.
In winter when the bergenia has died back stems from yellow and redtwig dogwoods add to the yucca s colorful display.
If you re going to grow a few pots of tomatoes you re probably fine but if you want to plant an extensive rooftop garden get an engineer s report to make sure your roof is up to the task.
One pot four seasons yucca and bergenia are the core plants in this container shining in summer and fall.
It is hardy in zones 4 8 and reaches just 10 inches tall.
They can handle the expanding and contrasting soil as the temperatures fluctuate.
Place the plant in the center of a garden bed or at the back of a garden against a fence for tropical height.
If there is a spot in the garden that is all green during parts of the season add a pot of flowering perennials there to liven up the space and add visual interest.
13 best perennials for containers.
Plant in moist well drained soil.
It appreciates room to spread out and you may find it needs dividing after a couple of years.
Ornamental grasses hardy with few maintenance needs and year round structure to boot are a good fit for rooftop gardens and blue fescue festuca glauca can be used in containers in a border or as an edging plant.
Plastic composite metal and wood pots are all excellent choices for overwintering perennials in containers.
Edibles can also be part of a rooftop garden.
Design your container plantings to coordinate with the seasons so you have something in bloom for spring summer and fall.
Leave your potted perennial plant where it is outside.
From 1 to 15 feet depending on type.
In spring before the yucca and bergenia have returned to form pansies and lamium steal the show.
Flowers grow on spikes in shades of pink red white coral blue and purple.
They are useful as accents or splashes of color in the landscape or can be combined in perennial gardens.
Flowers grow on spikes in shades of pink red white coral blue and purple.
Perennial tickseed self sows enabling it to naturalize with vigor.
Sow seeds or plants in early spring in zones 4 to 9.
There are over 12 000 different species of ferns that you can grow in your garden and they make an excellent option to grow in a container.