Helianthus 'Happy Days' - Giant Sunflower
🌿 Features
Type: Annual Sunflower
Common Name: Happy Days Giant Sunflower
Scientific Name: Helianthus annuus 'Happy Days'
Flower Color: Bright Golden Yellow
Mature Height: 1.2–1.5 m (4–5 ft)
Mature Width: 0.4–0.6 m (1.3–2 ft)
Habit: Upright, branched, bushy habit
Bloom Period: July to September
Exposure: Full sun (minimum 6 hours)
Water Needs: Regular, especially during dry periods
Soil Type: Well-drained, fertile, slightly alkaline
Hardiness Zone: Annual (all zones)
Drought Tolerance: Moderate once established
Pollinator-Friendly Plant: Yes
Attracts Pollinators: Yes, bees and butterflies
Toxicity to Animals: Non-toxic
✂️ Care
Regularly remove spent flowers to encourage new bud formation and prolong the blooming period. Lightly pinching the main stems when young promotes denser branching and better structural integrity.
Water regularly during the growing season and during prolonged dry spells. A light layer of mulch helps retain soil moisture and gradually enriches the soil. Undemanding once established, this sunflower offers a spectacular summer performance with minimal maintenance.

