Growing Gladiolus Indoors Starting Gladiolus Early By Planting Them Indoors
Steps to Starting Gladiolus Early Indoors You can start your gladiolus corms indoors about four weeks before your last frost date. Gladiolus can be started in either soil or water. Which method you use for starting your gladiolus early is up to you. Starting Gladiolus Early in Water Depending on how many gladiolus you have to start, choose either a shallow bowl or some other flat container that will hold a small amount of water and all of the gladiolus corms spread out....