Alders are sturdy and fast-growing, even in acidic and damaged sites such as burned areas and mining sites. The trees establish symbiosis with the nitrogen-fixing Actinomycete (Frankiella alni). These bacteria convert atmospheric nitrogen into soil-soluble nitrates, which can be utilized by alder plants and favorably enhances the soil fertility. The fallen alder leaves make very rich compost, especially through mineralization of nitrogen leached from litter (Stephan et al., 2000; Rezaei Taleshi, 2008).
Packaging: 1 kilo
Best for cactus and succulents, ornamental (indoor and outdoor plants, and fruits and vegetables.
Mix 1 Kilo of Alnus Compost to 7-8 kilos of potting soil.