HERE'S AN OVERVIEW OF THE DISTINCTIONS:
The differences between different grades of sphagnum moss are primarily related to the quality and characteristics of the moss. The specific grading systems and terminology may vary among suppliers and regions, so it's essential to understand the grading criteria used when purchasing sphagnum moss for your specific gardening or horticultural needs.
QUALITY AND LENGTH OF STRANDS:
Sphagnum moss grades vary in the quality of the moss strands. Higher-grade sphagnum moss typically consists of longer and finer strands, which are often preferred for their water-holding capacity and suitability for various horticultural applications.
FLUFFINESS:
The fluffiness of the moss strands is another factor that differentiates grades. Finer and fluffier strands are often associated with higher-grade sphagnum moss, as they can provide better aeration and water retention.
PURITY:
Some grades may be purer and contain fewer impurities, such as sticks, leaves, or other debris. This purity is essential for orchid and plant cultivation, where contaminants can hinder growth.
ABSORPTION CAPACITY:
Higher-grade sphagnum moss is known for its excellent water absorption capacity, making it a popular choice for moisture-loving plants.
SOURCE AND ORIGIN:
The source and origin of the moss can also impact its characteristics. For example, New Zealand sphagnum moss is highly regarded for its quality and is known for its long fibers.
DEGRADATION LEVEL:
Some sphagnum moss is graded based on its level of decomposition and humification. This is measured using scales like the Von Post scale, with lower grades indicating less decomposition.