Sun Gro Sunshine #4 Aggregate Plus with Mycorrhizae3cu ft - CompressedA premium mix for indoor growing, Sunshine Mix #4 with Mycorrhizae contains a higher amount of horticultural perlite for plants that prefer greater air porosity. It is the classic #4 boosted with endomycorrhizae. This product contains RESiLIENCE, which may improve resistance to wilting. Low phosphorus fertilizer has been included to better support mycorrhizae establishment and growth.
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