Plant hyacinth bulbs in the winter, once the soil temperature has dropped to below 60 degrees F. Purchase the bulbs at least six to eight weeks before planting and store them in a ventilated container in the refrigerator until ready to plant.
About this Author
Diane Watkins has been writing since 1984, with experience in newspaper, newsletter and web content. She writes two electronic newsletters and content around the web. Watkins has a Bachelor of Science degree in chemistry from Clemson University. She has taken graduate courses in biochemistry and education.