Cardiocrinum cordatum, also known as Turep in the Ainu Languages, is a Northeast Asian species of plants in the lily family. It is native to Japan and to certain Russian islands in the Sea of Okhotsk (Sakhalin, Kuril Islands).Because of its large, showy flowers, Cardiocrinum cordatum is sometimes cultivated as an ornamental in regions outside its native range, though not as frequently as the related C. giganteum.The Ainu, a group indigenous to Hokkaido, harvested the bulbs. Starch was extracted and used to create a form of dumpling.The plant has reportedly become naturalized in the State of Maryland in the eastern United States.
The heart-leaved lily has strong resistance to disease and generally isn’t prone to illnesses. Still, it can be vulnerable to pests and diseases present in its environment, though such infections are typically mild. Regarding care, the plant needs moderate maintenance. Regular pruning is necessary to keep a neat appearance and support healthy growth. Fertilizing can also help encourage flowering. The heart-leaved lily is well suited for anyone with outdoor space, like a garden or patio, and doesn’t require extensive care experience. It may need more attention when grown indoors.
How to keep Cardiocrinum Cordatum.
Light
The heart-leaved lily is native to habitats like forest understories and rocky areas, where it grows in natural shade. It prefers partial sun but can tolerate full sun or full shade, reflecting its versatile, hardy nature.
Water
The heart-leaved lily, native to the moist understories of forests, thrives in environments with high humidity and consistently moist soil. To ensure optimal hydration, water it weekly. This herbaceous perennial flourishes outdoors, benefiting from rainwater during its growing season and showing moderate drought tolerance.
Temperature
Heart-leaved lily can tolerate a wide range of temperatures, but its distribution can still be restricted by various combinations of moisture and heat. It does best in warm summer climates with adequate rainfall or watering. Extended periods of cloudy, rainy weather or prolonged high temperatures can raise the likelihood of the Heart-leaved lily dying. In winter, proper protection from cold can increase the plant's chances of survival.
Fertilizer
For the Heart-leaved lily, the ideal time to fertilize is in early spring while the flowers are forming. The proper fertilizer promotes better blooms and helps the Heart-leaved lily produce attractive flowers. Fertilizing in early spring ensures strong flowering during the season and supplies energy for dormant growth phases.
Pruning
The heart-leaved lily is known for its large, fragrant flowers and heart-shaped leaves. This plant thrives with minimal pruning, but it's important to prune it in early spring. During this time, remove any spent stalks and damaged foliage to maintain the plant's health. Be careful not to cut live stems, as this can affect flower production. Regular pruning improves air circulation, reduces the risk of disease, and boosts the plant's vigor.
Botanical profile.
- Plant Type
- Herb
- Life Cycle
- Perennial
- Genus
- Cardiocrinum
- Family
- Liliaceae
- Hardiness Zone
- 6-9
- Mature Height
- 0.91 m to 2.13 m
- Mature Spread
- 61 cm to 91 cm
- Leaf Color
- Dark Green, Forest Green
- Leaf Type
- Deciduous
- Flower Color
- White
- Flower Size
- 15.24 cm to 20.32 cm
- Bloom Time
- Early summer, Mid summer
- Planting Time
- Spring, Summer, Autumn
- Harvest Time
- Late summer, Early fall, Mid fall
- Native Area
- Russia, Japan
Other names.
Reader questions.
What kind of sunlight does a Heart-leaved lily require?
The Heart-leaved lily thrives in partial sun, receiving about 3-6 hours of sunlight daily. It is native to environments like forest understories or rocky areas, where it experiences natural shade. Despite its preference for partial sun, this versatile perennial herbaceous plant can also tolerate full shade. Observing the movement of sunlight through your garden and selecting locations that provide a balance of light and shade will ensure the plant's wellbeing.
How do I use artificial lighting for indoor Heart-leaved lily plants?
Indoor Heart-leaved lily plants require adequate lighting for optimal growth, especially when natural sunlight is insufficient. Artificial lights, such as LED lights which can be customized to provide specific wavelengths, are a vital solution. Full sun plants need 30-50W/sq ft, partial sun plants 20-30W/sq ft, and full shade plants 10-20W/sq ft of artificial light. The light source should be placed 12-36 inches above the plant, mimicking the length of natural daylight hours, which is typically 8-12 hours per day.
What symptoms indicate insufficient light for a Heart-leaved lily?
Symptoms of insufficient light in Heart-leaved lily plants include smaller new leaves, leggy or sparse growth, faster leaf drop, slower or no new growth, lighter-colored new leaves, chlorosis, sunscald, leaf curling, wilting, and leaf scorching. These symptoms can arise when the plant is grown indoors with inadequate light, or overexposure to sunlight outdoors, affecting the plant's overall health and ability to photosynthesize.
How can I address light-related issues in Heart-leaved lily plants?
To optimize the growth of Heart-leaved lily plants and address light-related issues, consider gradually shifting them to sunnier spots each week until they receive 3-6 hours of direct sunlight daily. For indoor plants that are large or not easily movable, using artificial light such as a desk or ceiling lamp for at least 8 hours daily or investing in professional plant grow lights can provide sufficient light. Outdoors, gradually moving plants to sunnier locations can help them adapt without experiencing sunburn. Minimizing obstructions like pruning trees that block sunlight or transplanting smaller plants to sunnier locations with good drainage can also improve light exposure. Note that parts of the plant affected by insufficient sunlight may not recover, but new growth should be healthy with increased light exposure.
