The Lake Granbury Master Gardeners will host a program using the age-old technique of companion planting on Monday at 6:30 p.m. in Annex I on West Pearl. Horticulturist Janet Riley from Fort Worth will lead the program. Participants will learn about placement of plants for better health, crop production and improved taste. They will also learn why companion planting helps to deter pests and disease. The fee for participating is $15. Space is limited. For reservations, contact the Texas AgriLife Extension in Hood County by phone: 817-579-3280, fax: 817-408-2533 or email: [email protected].