Gil practices sustainable landscaping.

He is a member of Seattle Tilth and is an authority on xeriscaping (no water landscapes).

He has maintained the grounds of Seattle's historic Good Shepherd Center for 22 years without the use of chemicals.

He grows half of his family's food within the city and knows 200 varieties of fruits and vegetables which flourish in Seattle.

He encourages local food gardens where practical to encourage healthy eating and reduce CO₂ emissions.

Uses recycled and reclaimed
materials where favorable.