Spikenard 'Sun King' (Aralia cordata 'Sun King')

Spikenard 'Sun King'

Also known as: Udo 'Sun King', Mountain asparagus 'Sun King'

Aralia cordata 'Sun King' was first spotted in a Japanese department store nursery by plant collector and photographer Barry Yinger, who brought it to the USA and named it spikenard 'Sun King' for its vibrant lime-green to yellow foliage. The flowers are white and tiny and produce deep-purple-to-black inedible berries. It was declared the 2020 Perennial of the Year by the Perennial Plant Association and is gaining a reputation as of one of the most exquisite new perennials of the last decade.

Scientific classification

Carrots, ivies and allies

Instantly identify plants with a snap

Snap a photo for instant plant ID, gaining quick insights on disease prevention, treatment, toxicity, care, uses, and symbolism, etc.

Download the App for Free

Perennial

Lifespan

Tree, Shrub

Plant Type

Summer, Early fall

Bloom Time

Late summer, Early fall

Harvest Time

1.2 m

Plant Height

1.2 m

Spread

Green, Yellow, Gold

Leaf Color

1 cm to 2 cm

Flower Size

Deciduous

Leaf type

0 - 35 ℃

Ideal Temperature

Care Guide for Spikenard 'Sun King'

Twice per week

Water

Partial sun

Sunlight

0 - 35 ℃

Ideal Temperature

Garden Soil

Soil Type

Water: Native to East Asian forest understories, spikenard 'Sun King' prefers humid, shaded conditions. Water twice a week to maintain even soil moisture while avoiding waterlogging. Often grown indoors for its vibrant foliage, spikenard 'Sun King' thrives in increased humidity, enhancing growth and appearance.

Fertilize: Spikenard 'Sun King' requires balanced nutrition fertilizer monthly during the growing season and a high nitrogen formula in early spring for optimal growth. Reduce fertilization in colder months and water thoroughly post-application. Monitor for over-fertilization signs to ensure healthy growth and development.

Pruning: Spikenard 'Sun King' is a perennial with vibrant yellow-green leaves. Prune in early spring to remove dead stems and promote growth; cut back leggy stems to the base. Regular pruning enhances air circulation and health, supporting its expansive growth and vibrant foliage display throughout the season.

Propagation: Spikenard 'Sun King' is a hardy perennial that prefers partial shade and well-drained, nutrient-rich soil. Propagation is through sowing seeds in containers with starter mix; keep moist until germination. Ensure adequate spacing for seedlings to promote airflow and prevent fungal diseases.

Repotting: Spikenard 'Sun King'' is a herbaceous perennial that can grow up to 6 feet. Repot every 2-3 years using a large, well-draining pot. After repotting, provide light watering and partial shade to promote recovery, as its large leaves require ample space for optimal growth.

Get tips and tricks for your plants.

Keep your plants happy and healthy with our guide to watering, lighting, feeding and more.

Download the App for Free