Here are some reliable links from university cooperative extensions around the country. As the plants will vary regionally it is important to seek out information pertaining to your specific region.

The following links are gardening guides requested by HGEL fans from across the country and around the world on our facebook fan page. I have only posted guides from reliable sites (i.e. university horticulture depts. & cooperative extension offices, Master Gardener sites, etc.)

Sunflowers…summer happiness on a stalk!