Hour 3 - Watering, wildflowers, cypress trees, bamboo - and "air layering"

Donna has black stems on her gardenia and Rusty has yellow grass - David suspects watering issues. Harold needs advise on this wildflower garden, Brent needs advice on saving cypress tree roots from the recent flood, Eliazar needs to get rid of bamboo, Delanie with a bluebonnet question, and "air layering" returns. David explains.