Sundial PPAF False Sunflower (PW)

Quick Overview

• Botanical name: Heliopsis helianthoides ‘Sundial’ PPAF. 

• Common name: Sundial False Sunflower

• Hardiness: Zones 3‑9 in many listings. 

• Mature size: Approximately 48 – 54 inches tall and ~42 inches wide. 

• Flower/foliage: Gold‑yellow daisy‑like blooms with red‑“eyes” (centres) set above dark olive‑green foliage. Very showy. 

• Key attributes: Mildew‑resistant variety, tolerant of hot/dry sites, strong pollinator attractor. 

Light, Soil & Site Needs

• Light: Prefers full sun (6+ hrs) for best bloom and strong stems. Part sun works but may reduce performance or cause leggy growth. 

• Soil: Adaptable to many soil types (loamy, sandy, even somewhat clay) provided drainage is adequate. Rich, overly moist soils may lead to flopping or mildew. 

• Drainage & moisture: Prefers average moisture; once established tolerates some dry conditions. Avoid sites that stay soggy. 

• Space & placement: Because of height (~4‑5 ft) and width (~3½ ft) allow spacing accordingly (e.g., 36‑42 inches apart) so it has room to fill and strong stems. 

Planting & Maintenance

• Planting: Plant in spring or early summer when soil is workable. Set crown level with the soil, water in well.

• Watering & care: During first season keep soil consistently moist to help establishment. After that it becomes more tolerant of dry spells. 

• Fertilizing: Minimal fertilizing — excess fertility can cause weak, floppy stems. Best with moderate fertility. 

• Dead‑heading/pruning: Remove spent flower heads to encourage extended bloom and tidier appearance. In early spring you can cut back stems to ground if desired. 

• Staking/support: In very rich or moist soils or very windy sites, taller stems may need light support. Good branching helps keep it sturdy. 

Cold Climate (Zone 3) Considerations

• This cultivar is rated to Zone 3, making it a good choice for colder climates. 

• For Zone 3 success:

  • Choose a sunny site with full sun and good winter exposure.

  • Ensure excellent drainage—avoid low areas where melt or water collects, especially in spring.

  • Because it gets tall, avoid exposing it to harsh winter winds without snow protection.

  • A light mulch in late fall may help root zone protection, but ensure the crown is not buried or remains soggy.

  • In spring tidy up old stems and check for any winter‑damage.

Photos from waltersgardens.com