Convenient bulka bags of premium free-draining top dressing (top soil) or underlay for turf. Turf Gro (previously called Lawn Builder) has good moisture retention and is nutrient rich. Does not cake. Bulka Bags can be craned up to 17 metres from the truck including upper levels (crane fees apply).BC Sands recommends LSA Turf gro premium soil underlay to give your new Sir Walter DNA Certified lawn the best opportunity for quick establishment. For answers to some commonly asked questions, please refer to FAQs