Lightweight Soil For Roof Gardens

Supports growth of ground covers perennials ornamental grasses shrubs trees.

Lightweight soil for roof gardens.

Fourth keep in mind that your rooftop garden will be considerably windier than a normal garden. Lightweight volcanic aggregate such as pumice or lava. Rooflite extensive the ideal growth medium for extensive green roof systems with hardy and drought tolerant vegetation. Soil mix for your rooftop garden must be lighter than a regular soil mix but only lightweight soil can t solve all the issues.

Lightweight soil is a blend of screened sandy loam 40 coir 20 pas100 green compost 20 and leca 4 10mm 20. Lightweight intensive roof garden soil. If your garden area receives enough rainwater during the growing season and the average rainfall ratio is higher you would need a soil mix that dries out quickly. Normally used at depth of 8 12 inches.

Amber freda home garden design. For the best green roof medium the growing media should contain the following. These aggregates make a good basis for a growing medium. Use styrofoam peanuts for drainage rather than rocks or pottery shards.

Unless you have a lot of space to create your own compost system a lightweight soil specifically made for green roofs is ideal. Can be used in combination with rooflite intensive base and rooflite drain to provide deeper root space. We designed around the weight restrictions by using lightweight potting soil and putting a false bottom inside the planters to reduce total soil volume. Criteria for growing media for roof top gardening.

Specially made rooftop garden soil generally contains a highly engineered blend of minerals and organic matter that is genetically designed to be lightweight retain water and ensure proper drainage. Dry and saturated weights of growing medium components. You will need to incorporate windbreaks into your rooftop garden design. The loam complies with bs 3882 2007 and is screened to 10mm.

This 6th floor pre war rooftop garden had weight restrictions of 35 pounds per square foot. Use lightweight potting soil rather than garden dirt. In terms of handling and for practical reasons soil alone or topsoil for roof gardening can be difficult to work with in comparison to. There have some other factors to be considered.

The high proportion of leca light expanded clay aggregate reduces density and enhances drainage characteristics.