This page contains some helpful information on landscaping in a lake-friendly manner.  Click on the links below.

"Shoreland Homeowner's Guide to Stormwater Management" , from the NH Department of Environmental Services

"Landscaping at the Water's Edge" , from the University of New Hampshire Cooperative Extension.  This guide is a truly excellent resource.  It covers soil types, water management, landscape design principles, recommended plant lists, managing weeds and other pests, environmentally friendly lawn care, turf pest management...  Printed in color with diagrams.  This is a must read!