
Light Needs

Mature Height

Mature Spread

Growing Zones
Prepare to be bowled over by this astounding daylily. ‘King of the Ages’ is aptly named with its regal height, enormous flowers, and magnificent coloring. It has 38-inch-tall scapes and large, 6.5-inch flowers. The fragrant blooms are a breathtaking fusion of buttery yellow, peach, and apricot with a burgundy eye and ruffled, burgundy edge. A repeat bloomer, it will bring color to your garden in mid-summer and again later in the season. Expect high performance from this tough, adaptable, award winner.
Rainbow Rhythm® 'King of the Ages' Hemerocallis resists leaf spot, root rot, and powdery mildew. It tolerates harsh conditions such as city pollution, juglone from black walnut trees, poor soils, and salt. It repels rabbits. This daylily grows well in pots, taking the role of thriller in a combination container. Use it in mass plantings or try pairing it with compact shrubs or ornamental grasses in the landscape. As an accent plant, it makes a fine specimen or focal point in the border.
Rainbow Rhythm® King of the Ages Daylily Care
Plant this easy-care daylily in well-drained soil and in a full-sun location. Incorporate organic matter for aeration, drainage, and fertility. Dig a hole twice as wide as the pot and be sure the crown of the plant is even with the soil level. Water thoroughly, then provide regular irrigation for optimum growth. 'King of the Ages' tolerates any type of soil and pH.
Cut back spent flower stems after flowering. No specific winter care is recommended as 'King of the Ages' has complete winter hardiness in northern zones. When growing them in containers, plant in a rich, soilless potting mix. If you are using a light-weight pot, you may want to place 2-3 inches of river rocks in the bottom first – this will prevent them blowing over when the plants are full grown. Water slowly until water comes out of the hole before placing the pot on a drip tray. Locate in full sun – at least six hours each day. Protect containers in the winter by placing them in an unheated garage or basement until they produce new shoots in the spring.
Rainbow Rhythm® King of the Ages Daylily Spacing
In the garden, space the plants 18-24 inches apart, from center plant to center. If planting in containers, large pots are best. They should be at least 24 inches in diameter.
Rainbow Rhythm® King of the Ages Daylily Information
USDA Hardiness Zones: 3-9 |
Plant Type: Perennial |
Sunlight Exposure: Partial Sun to Full Sun |
Mature Height: 38 Inches |
Mature Width: 1.5 - 2 Feet |
Plant Spacing: 1.5 - 2 Feet |
Growth Habit: Upright |
Flower Color(s): Yellow, Red, Peach, Orange |
Flower Shade: Butter-Yellow |
Seasonal Interest: Early Summer to Fall |
Foliage Type: Herbaceous |
Foliage Color(s): Green |
Attracts: Bees, Butterflies, Hummingbirds |
Resists: Rabbits |
Tolerates: Salt |
Features: Attracts Pollinators, Cut Flowers, Fragrant, Low Maintenance, Continuous Blooming or Reblooming |
Uses: Border Plant, Container, Mass Planting, Landscape |
Plant Brand: Proven Winners |
Botanical/Scientific Name: Hemerocallis x 'King of the Ages' |
- SKU:
- HEMKA
Please Note: The pictures below are to give a general representation of the different container sizes. The actual size/ages of plants are estimates and will vary based on type of plant, time of year, last pruning & many other factors.

Also Known As:
Quart
Plant Age:
~ 6 months - 1 year
Plant Size:
~ 4"-8"
Pot Size:
~ 4.75"H x 4.5"W
Volume:
1.50 quarts

Also Known As:
2.5 Quart Pot
Plant Age:
~ 1 - 2 years old
Plant Size:
~ 8"-12"
Pot Size:
~ 6.5"H x 6.5"W
Volume:
2.20-2.30 quarts

Also Known As:
#1 Container
1 Gallon
Plant Age:
~ 1 - 2 years old
Plant Size:
~ 10"-14"
Pot Size:
~ 7"H x 7.75"W
Volume:
2.26-3.73 quarts

Also Known As:
#2 Container
2 Gallon
Plant Age:
~ 1.5 - 3 years old
Plant Size:
~ 12"-18"
Pot Size:
~ 9.5"H x 9.5"W
Volume:
1.19-1.76 gallons

Also Known As:
#3 Container
3 Gallon
Plant Age:
~ 2 - 4 years old
Plant Size:
~ 12"-30"
Pot Size:
~9.5"H x 11"W
Volume:
2.32-2.76 gallons

Also Known As:
#5 Container
5 Gallon
Plant Age:
~3-4 years old
Plant Size:
~ 20" - 60"
Pot Size:
~11" H x 10 1/2” W
Volume:
3.5 - 4 gallons

We stand behind our plants with industry-leading guarantees to give you peace of mind.
We want your plants to arrive in great condition! If you notice any issues upon delivery, contact us within 3 days.
All bushes, perennials & trees come with an extended 1-year warranty for added confidence. If your plant dies due to a health issue within a year, we’ll make it right.

Pre-ordered plants are scheduled to ship in Spring 2025. We carefully plan our shipping dates based on your USDA Plant Hardiness Zone to ensure optimal planting conditions upon arrival. Want it sooner/later? Reach out, and we'll try our best to accommodate.
Estimated ship week for pre-ordered plants will ship based on growing zones as shown below.
Growing Zone | Estimated Ship Week |
---|---|
Zone 10 | March 24th |
Zone 9 | March 31st |
Zone 8 | April 7th |
Zone 7 | April 14th |
Zone 6b | April 21st |
Zone 6a | April 28th |
Zone 5b | May 5th |
Zone 5a | May 12th |
Zone 4 | May 19th |
Zone 3 | May 26th |
Note: These are only estimated ship dates. Plants may ship out later depending on weather & growing conditions of the plant.
Note: Only plants indicated as pre-order will ship as shown above. All other plants and hard goods will ship as normal.
Plants that are currently in stock typically ship within 2-7 business days after your order is placed.