Perennial Garden

  • Roof garden with herbs, grasses, lawn and bench

Green Roof System “Perennial Garden” – The Ideal System Build-up for Blooming Perennials and Aromatic Shrubs

“Perennial Garden” is a simple intensive Green Roof system and allows for the inclusion of various perennials and small shrubs in the plant selection. Compared to extensive Green Roofs, the larger capacity of the drainage layer and the thicker layer of growing medium facilitate this broader plant palette.

Apart from low-growing Sedum species, the plant community “Perennial Garden” also contains fragrant drought resistant herbs and small shrubs, like thyme, oregano, lavender and ornamental grasses, which can be completed by colorfully flowering species using a special planting design.

For this semi-intensive Green Roof, the ZinCo Floradrain® FD 40-E water retaining- and drainage element is combined with the ZinCo “Zincoblend I” growing medium specifically developed for this plant community, to create the right growing conditions for the various species of this type of Green Roof.

By shaping the growing medium, it is possible to create a varied appearance. Various designs and combinations with walkways and patios are also possible. The "Perennial Garden" system requires only moderate care and maintenance. During dry season additional irrigation may be necessary.

Technical Data
Build-up height ca. 6 ¾ in.
Weight, saturated ca. 42 lbs/sq. ft.
Water storage capacity ca. 1.8 gal/sq. ft.

System Solutions for Intensive Green Roofs

General overview of various intensive green roof systems and the technology involved.

Number of pages
16 pages
Date of publication
May 2019
Specification Suggestions
System build-up

Diagram

Products

Grafik des Systemaufbaus
Plant layer according to plant list
Growing Media “Zincoblend I”, depth: ca. 5 in. (ca. 125 mm)
Filter Sheet SF
Drainage Element Floradrain® FD 40-E
Protection Mat SSM 45
Root Barrier WSF 40 (optional)

Product Details

Plant layer according to plant list

Growing Media “Zincoblend I”, depth: ca. 5 in. (ca. 125 mm)

Product Image

System Substrate for intensive green roofs in multiple layer build-up.

Filter Sheet SF

Product Image

Geotextile of thermally strengthened polypropylene, applicable as filter sheet above drainage elements for normal mechanical stress.

Drainage Element Floradrain® FD 40-E

Product Image

Drainage and water storage element of recycled polyolefin for use on extensive and intensive green roofs with or without slope.

Protection Mat SSM 45

Product Image

Water and nutrient storage mat of synthetic fibres, for the application as a protection layer under green roofs, gravel fills, slab pavings, etc.

Root Barrier WSF 40 (optional)

Product Image

Established, proven and tested sheet, easy to install, made of environmentally friendly polyethylene for the use as root protection under extensive green roofs.

No product information available

Note

The system solution shown relates to the green roof build-up in particular. The roof construction itself is only shown schematically and must be planned and executed according to specialist rules for waterproofed roofs.

  • Pasqueflower
  • Lavender
  • Chamaemelum nobile
  • Origanum
  • Armeria maritima
  • Nepeta cataria
  • Geranium maculatum