Help Desk Ask The Help Desk DO YOU HAVE GARDENING QUESTIONS FOR THE HORTICULTURE HELP DESK? Williamson County Master Gardeners provide FREE gardening advice to area residents. We welcome the opportunity to help you find the solutions to your horticultural and gardening problems. Phone 512-943-3300. Help Desk hours: March - October- Tuesday & Friday, 10 a.m. to 2 p.m. November - February - Tuesday 10 a.m. to 2 p.m. Submit online questions anytime: Provide as much detail as possible including information regarding location, light, and water. Photos are always useful.Name(Required) Address, City, Zip(Required) Phone(Required)Email Address(Required) Subject(Required) Horticulture or Gardening Question(Required)Click on the "Submit" Button at the bottom when you have completed the form.Have a photo? Attach it here. Drop files here or Select files Accepted file types: jpg, jpeg, png, gif, Max. file size: 5 MB. Δ