An all purpose soil less peat free potting mix is fine for growing herbs and other edibles but mix in plenty of perlite to both improve drainage and save on weight.
Roof garden with shade.
Hosta big daddy hardy in zones 3 8 is just one choice.
But if nearby buildings are tall the garden can be in shade all day which is too dark for many plants or quickly switch from deep shade to intense sun.
Bridge the gap by using tall planters or architectural features such as pillars or grow shade tolerant trees and shrubs to provide your garden with a variety of heights.
Lynn we have installed several greenroofs with shade perennials and you need to ensure that you have at least 4 of growing media a water retention mat and a drainage board that has water reservoirs that retain at least 09 gallons of water per sq.
The architectural benefits of green roofs in addition to energy savings roof gardens have a beneficial effect on roofs themselves.
Rob cardillo green roofs have become natural fits for many public buildings as well thanks to large scale environmental and financial benefits such as energy efficiency storm water management sound insulation and the development of.
Now comes the growing medium which for a sedum roof should be at least 8cm 3in deep and for a roof of wildflowers herbs salad and strawberries at least 15cm 6in deep.
It s often quite windy in summer and very sunny and hot.
Integrating impressively sized hosta into shadier spots on a rooftop garden is a terrific way to add beautiful foliage to the space.
Toward the back of the house another butterfly shaped structure echoes the front one creating a covered courtyard dining room.
Create layers to keep your garden interesting.
Affiliate sponsored links hosta maui buttercups https bit ly 2ezbsqy robust fern https bit ly 2qw5lji leptinella platt s black zinfandel oxalis.
Many shade gardens feature relatively low perennials such as hosta bleeding heart and astilbe underneath a canopy of tall trees.
But the shade plants in the rooftop garden reduced the heat flow thereby reducing the average daily energy demand to less than 1 5 kwh 5 100 btu a savings of over 75 percent.
Designing a luxury rooftop terrace.
In virginia norfolk botanical garden s green roof uses sedum delosperma and sempervivum.
Its blue green leaves offer rich deep color and are big enough to cut as foliage for bouquets perfect for multitasking rooftop gardening plants.