Humic acid is a principal component of humic substances, which are the major organic constituents of soil (humus), peat, coal, many upland streams, dystrophic lakes, and ocean water.t is produced by biodegradation of dead organic matter. It is not a single acid; rather, it is a complex mixture of many different acids containing carboxyl and phenolate groups so that the mixture behaves functionally as a dibasic acid or, occasionally, as a tribasic acid.
Noteworthy Characteristics. Picea abies, commonly called Norway spruce, is a large pyramidal evergreen conifer that is native to the mountains of northern and central Europe east to the Urals. In its native European habitat, it typically matures to 100-150' (occasionally to 200') tall.
A cultivated variety of the Norway spruce tree, the Cupressina spruce is a smaller tree with a narrower but still column-like shape. This spruce grows to only 15 feet in height and 5 feet in width, making it appropriate for smaller spaces or for creating hedges and privacy screens.partan Chinese Juniper (Juniperus chinensis 'Spartan'). The Spartan juniper is a fast-growing evergreen tree that's appropriate for smaller yards, growing to only 12 feet tall and 5 feet wide. You can also plant several of these junipers to create a tall hedge or privacy screen.