Plant Profile: Common Sunflower (Helianthus annus)
Karen Although there are many perennial sunflowers there is only one annual that is garden worthy but that one has dozens of cultivars and is very popular. A native of western…
Collecting Seed: Sunflowers (Helianthus spp)
The large genus of Helianthus includes bth annualas and perennials but the most commonly grown is an annual, Helianthus annus. The plants are usually tall and bear very large showy…
Factors to Consider when Selecting Annual Sunflowers for the Garden
The past 30 years has brought the humble sunflower (Helianthus annus) from a roadside weed to a garden show-stopper. Just open a seed catalog to realize that there are many…