Hemerocallis 'Joan Senior' is a reliable daylily prized for its large rich yellow blooms and sturdy stems. Known for its vigorous growth and dependable midsummer flowering, it is a staple in traditional perennial gardens.
Height & Spread: 24 - 30 in x 24 - 30 in
Bloom Time: Midsummer
Light Requirements: Full sun to part sun
Soil Preference: Prefers well drained, fertile soil but tolerates a range of conditions
Watering Needs: Moderate; benefits from regular watering during dry spells
Deer Resistance: Moderate
Native Status
Not native to North America. This cultivar is a hybrid daylily developed for garden performance and ornamental appeal.
Wildlife & Insects
Butterflies
- Attracts Eastern Tiger Swallowtails, Monarchs, and Painted Ladies with its large nectar rich blooms.
Bees
- Provides pollen and nectar to native bumblebees, honeybees, and sweat bees throughout the bloom period.
Hummingbirds
- Occasionally visited by Ruby Throated Hummingbirds seeking nectar from trumpet shaped flowers.
Spacing & Landscape Use
Spacing Recommendations
- Plant 18 - 24 in apart to allow for mature growth and airflow.
Landscape Placement
- Works well in perennial borders, foundation plantings, and mixed garden beds for summer color.
Companion Plants
- Coreopsis verticillata (Threadleaf Coreopsis) - Adds fine texture and bright yellow blooms that harmonize with daylilies.
- Echinacea purpurea (Purple Coneflower) - Contrasts with vibrant purple flowers attracting pollinators.
- Lavandula angustifolia (English Lavender) - Offers fragrance and gray green foliage for color contrast.
- Salvia nemorosa (Woodland Sage) - Brings vertical violet flower spikes and attracts beneficial insects.
- Geranium 'Rozanne' (Hardy Geranium) - Provides long blooming blue flowers and groundcover around taller plants.