Collecting Seed: Sunflowers (Helianthus spp)
Karen 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…