January
Horticultural Oil Sprays, January 7, 2009
Hydrogels: Are They Safe?, January 14, 2009
Honeybee Colony Collapse Update, January 21, 2009
Deciduous Fruit Tree Pruning, January 28, 2009

February
Growing Bamboo, February 4, 2009
Plant Warfare, February 11, 2009
Slowing Erosion with Native Grasses, February 18, 2009
Selecting Native Grasses, February 25, 2009

March
Evaluating Fertilizers, March 4, 2009
Biochar: An Old Idea Resurfaces, March 11, 2009
Outdoor Landscape Lighting, March 18, 2009
Managing Pocket Gophers, March 25, 2009

April
Managing Pocket Gophers: Part 2, April 1, 2009
Stem Girdling Roots, April 8, 2009
Bacterial Insecticides: Bacillus thuringiensis, April 15, 2009
Trees Gone Bad, April 22, 2009
Using Fertilizers Wisely, April 29, 2009

May
Arizona's Native Pines, May 6, 2009
Ornamental Bunch Grasses, May 13, 2009
Desert Cottontail Rabbit, May 20, 2009
Bermudagrass Control, May 27, 2009

June
Growing Hot Chiles, June 3, 2009
Understanding Pesticide Labels, June 10, 2009
Drought Tolerant Plants, June 17, 2009
Shrub Pruning, June 25, 2009

July
Coping with No-See-Ums, July 1, 2009
Growing Basil, July 8, 2009
Managing Wood Decay, July 15, 2009
Black Bears, July 22, 2009
Growing Yarrow, July 29, 2009

August
Sustainable Landscapes, August 5, 2009
Oregon Grape and its Native Relatives, August 12, 2009
Dodder: A Plant Parasite, August 19, 2009
Come to the Arizona Highlands Garden Conference, August 26, 2009

September
Phosphorus in the Soil, September 2, 2009
Quagga Mussels: An Invasive Mollusk, September 9, 2009
Texas Root Rot, September 16, 2009
Wood Stove and Fireplace Safety, September 23, 2009
Planting a Fall Cover Crop, September 30, 2009

October
Green Roofs are Growing, October 7, 2009
Backyard Bird Feeding, October 14, 2009
Building a Hoophouse, October 21, 2009
Autumn Leaves, October 28, 2009

November
Look for Lichens, November 4, 2009
The Science Behind Climate Change, November 11, 2009
Insect and Mite Galls, November 18, 2009
Growing Mushrooms at Home, November 25, 2009

December
Fall and Winter Irrigation, December 2, 2009
Ponsettia Care, December 9, 2009
Scorpions, December 16, 2009
Garden Gnomes: The Real Story, December 23, 2009
2010 Gardening Resolutions, December 30, 2009