The following parameters were taken into account while selecting plant types:
- Aesthetic value (e.g. flowering): large variety of at least 10 sedum types.
- Drought resistance depending on substrate thickness, substrate composition, and water buffering. Since each sedum type thrives best under slightly different climatic conditions, a large variety of sedum plants provides more security.
- Speed of multiplication, this in order to prevent overgrow by one specific type
- Regenerative capacity after extreme drought.
Different flowering periods: when pre-cultivating ECCOsedum green roofs, use is made of cuttings: these are offshoots of mother plants that are snipped off. To determine the proper dosage of sedum cuttings for each variety, it is important to know how fast they multiply after planting (to avoid monoculture). By making use of growing fields (mother plants), each with one type of sedum plant, the correct mix of cuttings can always be guaranteed, which is important for the variety of the green roof.
ECCOsedum contain at least 7 types of sedum:
- Sedum Immergrunchen
- Sedum Album
- Sedum Reflexum
- Sedum Sexangulare
- Sedum Acre
- Sedum Spurium
- Sedum Lydium