‘Henry Wilde’ Sunflowers are an old time favorite. When you think of the classic sunflower, ‘Henry Wilde’ sunflowers might be just what you are picturing! Golden yellow petals, with a dark center, sit atop multi-branched stems all summer long. Flowers are large, 7-10 in. across, and plants are tall - 5-10 feet. ‘Henry Wilde’ also makes a great cut flower. Attracts pollinators to the garden. 2 g. seed packet Common Name: Sunflower ‘Henry Wilde’ Scientific Name: Helianthus annuus Hardiness: Annual Exposure: Full Sun Blooms: Summer into Fall Height: 5-10 ft. Color: Golden yellow with dark centers When to Sow Outside: RECOMMENDED. 1 to 2 weeks after your average last frost date.