Pine Fir Bark
Pine Fir Bark . Occasionally you’ll also see the likes of pine bark, redwood bark and hemlock bark, but as far as i can gather there’s not a huge amount of difference. Fir tree cones forming in an upward orientation. Pine Tree Bark Texture Picture Free Photograph Photos Public Domain from www.photos-public-domain.com Pine bark extract is an herbal supplement rich in healthy polyphenols like procyanidins, catechins, and phenolic acids. I beleive they screen the pine bark and these woudl be the small pieces that slip though. This bark will still be a recognizable particle 10 and 15 years in use in a bonsai mix.