Daylily 'Catalyst' (Hemerocallis 'Catalyst'): Creamy Yellow Extended Blooms on Semi-Evergreen Foliage

Daylily 'Catalyst' (Hemerocallis 'Catalyst')

'Catalyst' produces creamy yellow flowers with ruffled edges on plants 24 inches tall. This semi-evergreen cultivar has an extended diurnal blooming habit—flowers remain open for at least 16 hours from early morning to evening. The combination of long-lasting individual blooms and a clumping habit makes it a reliable performer in the summer garden.

Growing Conditions and Care

Plant in full sun; in hot regions, light afternoon shade is beneficial. Rich, moisture-retentive soil amended with organic matter yields the best results. Water consistently and mulch to maintain soil moisture.

Propagation

Sow seed in containers in spring or autumn. Divide in spring or autumn.

Potential Problems

Daylilies are tough and relatively problem-free. Minor issues may include aphids, thrips, slugs, snails, and rust.

Quick Reference

• Height: 1–3 ft.
• Spread: 1–3 ft.
• Growth Habit: Clumps
• Growth Pace: Moderate
• Light: Full Sun Only
• Moisture: Medium
• Maintenance: Moderate
• Bloom Time: Summer
• Flower Color: Salmon, Yellow
• Uses: Beds and Borders, Container, Edging, Ground Covers, Specimen Plant/Focal Point
• Style: Cottage Garden, Meadow Garden
• Tolerance: Drought Tolerant
• Type: Perennial