Holten Landscape & Rockeries 20437 Se 272nd St Covington, WA 98042 Phone : (253) 639-2896 Business Category Landscape Contractors Holten Hydroseeding 20437 Se 272nd St Covington, WA 98042 Phone : (253) 639-2896 Business Category Landscape Contractors Concrete Contractors Seeding & Sodding Services Hydroseeding Water Gardens & Ponds Supplies Heavy Construction Fence Wholesale Construction Materials