Colorado State University Extension Service

• Information on trees, shrubs, landscaping, xeriscaping, irrigation, plant diseases, insects, vegetable gardening, etc.

http://www.ext.colostate.edu/pubs/pubs.html#garden

Tagawa Gardens Nursery

• Information on tree and shrub availability (call first), planting instructions, pruning tips, etc.

http://www.tagawagardens.com/tgtrees.htm