Botanical Name: Hemerocallis 'Joan Senior'
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Common Name: Joan Senior Daylily  
Plant photo of: Hemerocallis 'Joan Senior'
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Water Saving Tip:

Replace turf with groundcovers, trees, and shrubs. If you have areas where no one uses the grass, patches that do not grow well, or a turf area too small to water without runoff, consider replacing the turf with water-efficient landscaping.

  • Anatomy

  • Culture

  • Design

Plant Type

Ground cover, Perennial

 

Height Range

1-3'

 

Flower Color

White

 

Flower Season

Spring, Summer

 

Leaf Color

Green

 

Bark Color

n/a

 

Fruit Color

n/a

 

Fruit Season

n/a

Sun

Full, Half

 

Water

Medium

 

Growth Rate

Moderate

 

Soil Type

Sandy, Clay, Loam, Rocky, Unparticular

 

Soil Condition

Average, Rich, Poor, Well-drained, Dry

 

Soil pH

Acid, Neutral, Basic

 

Adverse Factors

n/a

Design Styles

English Cottage, Formal, Japanese, Mediterranean, Ranch, Seascape, Tropical

 

Accenting Features

Showy Flowers, Unusual Foliage

 

Seasonal Interest

Spring, Summer

 

Location Uses

Entry, Perennial Border, Shrub Border, Foundation, Parking Strip, Patio, Parking Lot, Raised Planter, Walkways, With Rocks

 

Special Uses

Container, Erosion Control, Mass Planting, Naturalizing, Small Spaces

 

Attracts Wildlife

n/a

Information by: Stephanie Duer
Photographer:

  • Description

  • Notes

'Joan Senior' is a nearly white daylily, growing about 25 inches tall. It is a early-mid bloomer, and repeat bloomer. All daylilies have grass-like, green foliage that grows in clumps; fall color is yellow. Use at the front of shrub or foundation borders, in perennial gardens, or along paths. They are also great for those areas that get little care, such as the sides of garages, along the alley or driveway.
Grow in well drained soil in full sun to a little shade. The ideal soil is a loam-sand or clay-loam soil, though daylilies are very adaptive. Avoid overhead watering, as that can cause spots on the flowers, or cause them to wilt. As flowers along the scape are spent, you can break them off to keep a tidier appearance, or simply remove the entire scape after flowering is completed. Remove old foliage and any remaining scapes in late winter to early spring, as new foliage emerges. Very heat tolerant. Though moderately drought tolerant, adequate watering during the spring when buds are forming is essential to vigorous summer flowering. Daylilies are discribed as being early-, mid-, or late bloomers and refers to when they bloom compared to other daylilies. Generally, daylily season is June through August, so early is usually around June, mid is July, and late is August. 'Rebloomers' usually have a primery bloom, followed by intermittant blooming the remainder of the season.