Gro-Bark

Gro-Bark was started in 1980 by Jim McKague when soilless mixes developed for the green-house industry began to use bark as an ingredient to supplement peat moss use. For the next fifteen years, Jim’s son Bill McKague refined bark product for use in potting mixes and commercial nurseries in Ontario. Simultaneously, a pine bark product for use as a landscape mulch was developed. By the mid-1990s, Gro-Bark was the leading producer of horticultural bark with its CPM® composted pine bark and SPM® shredded pine bark products.