Product safety through RAL quality assurance
Excellent product quality
Compliance with the defined quality standards is monitored by regular voluntary inspections.
Regular inspections
Extensive in-house and external monitoring guarantee compliance with the quality standards, which are assessed by a neutral body.
Superior consulting services
The award of the RAL quality mark documents compliance with specified quality standards to the user and consumer.

RAL Quality Assurance for:
- Bark
- Growing media
- Potting soils
- Growing media constituents
- Expanded clay granules for use as growing media
- Substrates for green roofs
- Substrates for tree planting
Advantages of the RAL Quality Assurance for Substrates for Plants:
Verantwortungsbewusst, verlässlich und progressiv
With the RAL Quality Mark Substrates for Plants you receive an objective and neutral proof of quality. This quality is permanently ensured by a high annual sample size.
This is what makes us a quality association
41
years of expirience
in the field of quality assurance
59
active members
from industry and science
7
product groups
with quality assurance for the professional gardener & the hobby sector
Product safety through RAL quality assurance
Excellent product quality
Compliance with the defined quality standards is monitored by regular voluntary inspections.
Regular inspections
Extensive in-house and external monitoring guarantee compliance with the quality standards, which are assessed by a neutral body.
Superior consulting services
The award of the RAL quality mark documents compliance with specified quality standards to the user and consumer.

RAL Quality Assurance for:
- Bark
- Growing media
- Potting soils
- Growing media constituents
- Expanded clay granules for use as growing media
- Substrates for green roofs
- Substrates for tree planting
Advantages of the RAL Quality Assurance for Substrates for Plants:
Verantwortungsbewusst, verlässlich und progressiv
With the RAL Quality Mark Substrates for Plants you receive an objective and neutral proof of quality. This quality is permanently ensured by a high annual sample size.
This is what makes us a quality association
41
years of expirience
in the field of quality assurance
59
active members
from industry and science
7
product groups
with quality assurance for the professional gardener & the hobby sector