Enkianthus perulatus — an easy houseplant, prefers full sun light
SPECIMEN · FROM THE LIBRARY
Enkianthus perulatus

Enkianthus Perulatus

Updated · 65 observations
A NOTE OF INTEREST

Enkianthus perulatus (dodan-tsutsuji) is a species of flowering plant in the family Ericaceae, native to Japan. It is a compact, slow-growing, deciduous shrub eventually growing to 2 m (6 ft 7 in) tall and wide. Pendent umbels of pure white, bell-shaped flowers in spring are followed in autumn by brilliant red and yellow leaf colours. Its leaves are ovate and medium to bright green in colour. It grows in sunny woodland areas.In cultivation this plant has gained the Royal Horticultural Society's Award of Garden Merit.It is the flower of Chizu, Tottori, where a doudan tsutsuji festival is held in May.

A note from PlantMom

Japanese enkianthus resists disease well and is generally unlikely to suffer from illnesses. Regarding care, this plant is fairly low-maintenance. When grown outdoors it needs little watering; larger specimens typically do not require pruning, while smaller plants should be pruned after they finish blooming. Japanese enkianthus is appropriate for anyone with outdoor space, like a garden or deck, and does not require extensive care experience.

— PlantMom
CARE GUIDE

How to keep Enkianthus Perulatus.

Light

Japanese enkianthus thrives with plentiful sunlight, growing best in bright locations. Although it tolerates some reduced light, too much shade can impair healthy growth. Native to sunny habitats, Japanese enkianthus can be harmed by insufficient sun. Heavy shading may limit development, whereas abundant sun does not damage this hardy plant.

Water

The Japanese enkianthus thrives in temperate regions with consistent moisture and steady humidity. For optimal health, water it weekly. This plant is well-suited for outdoor cultivation, as it can withstand fluctuations in temperature and soil moisture. It enhances deciduous garden landscapes, especially in areas with regular rainfall.

Temperature

Japanese enkianthus is native to temperate regions that align with its preferred temperature range of 10 to 32 ℃ (50 to 89.6 °F). Its environment should mimic these conditions, with slight adjustments for different seasons if necessary.

Fertilizer

Timing is important when fertilizing Japanese enkianthus. Apply fertilizer in early spring and continue monthly through early summer. Fertilizer encourages attractive blooms and supplies energy during both dormant and active growth periods.

Pruning

Japanese enkianthus is known for its striking bell-shaped flowers and vibrant autumn foliage. To promote growth and maintain its shape, prune the plant in late spring after it has finished blooming. Concentrate on removing dead or crossing branches to enhance airflow. Be careful not to prune too heavily, as this might reduce the number of blooms in the following year.

Pot & Repot

To promote healthy growth and prevent root binding, repot your Japanese enkianthus every 2-3 years in early spring. Choose a slightly larger container with excellent drainage. After repotting, ensure the soil remains consistently moist and keep the plant out of direct sunlight to help it recover and thrive.

CHARACTERISTICS

Botanical profile.

Plant Type
Shrub
Life Cycle
Perennial
Genus
Enkianthus
Family
Ericaceae
Hardiness Zone
6-8
Mature Height
1.52 m to 3.05 m
Mature Spread
2.13 m
Leaf Color
Green, Red, Orange
Leaf Type
Deciduous
Flower Color
White
Flower Size
0.51 cm to 1.02 cm
Bloom Time
Late spring, Early summer
Planting Time
Spring, Winter
Harvest Time
Mid summer
Native Area
Japan, China
ALSO KNOWN AS

Other names.

en White enkianthus en Japanese enkianthus en Dodan-tsutsuji
FREQUENTLY ASKED

Reader questions.

What is the most effective way to water my Japanese enkianthus plant?

To ensure excellent root development, place a garden hose at the base of the plant instead of directly spraying the leaves. If the plant is exposed to direct sunlight outdoors, the leaves will require more watering. Using bubblers or soaker hoses can help moisten the roots in each plant or cover the entire garden. Make sure to drain any excess water and wait for the soil to dry before watering again. Water at ground level to prevent diseases. On a sunny day, it might be helpful to spray the entire bush with water. Whether the plant is potted or in the ground, remember that Japanese enkianthus prefers deep watering rather than light sprinkling.

Why is it necessary to add fertilizer to my Japanese enkianthus?

Fertilizing your Japanese enkianthus is important for a few reasons. Firstly, it will help your plant produce beautiful blooms. To ensure excellent flowers in the spring, it is best to fertilize in early spring. Additionally, fertilizer provides your enkianthus with energy that it can store in the ground during dormant growth phases. By giving it extra nutrients during fall planting or late spring, your enkianthus will have more energy to use once active growth resumes.

How many hours of sunlight should Japanese enkianthus get each day to grow well?

To ensure healthy growth, it is important to provide Japanese enkianthus with at least 3-6 hours of sunlight every day. This is the minimum requirement and most plants that can tolerate partial sunlight can also do well in full sunlight. These plants are more adaptable as they require less light for photosynthesis compared to plants that need either full sunlight or partially shaded conditions.

What is the best temperature for Japanese enkianthus?

The ideal temperature for Japanese enkianthus to thrive is between 65 and 80℉ (18 and 27℃). During the main growth phase, it can tolerate a maximum temperature of 95℉ (35℃) and a minimum temperature of 15℉ (-10℃). This species can survive freezing winters because it can endure low temperatures. To summarize, the recommended temperature range is: - Ideal: 65~80℉ (18~27℃) - Maximum: 85~95℉ (30~35℃) - Minimum: -5~15℉ (-20~-10℃) or lower.

What should I do if I give the Japanese enkianthus plant too much or too little water?

If a Japanese enkianthus is overwatered, its leaves may turn yellow, drop off, and wilt. The plant may also appear dull and unhealthy, with mushy stems. To address these symptoms, it is best to adjust your watering schedule. However, wilting can also indicate under watering, which can cause crispy and dry leaves. In such cases, it is important to check the soil moisture and provide sufficient hydration. While this will help the Japanese enkianthus recover, it may still exhibit dryness and yellowing leaves due to root damage. Once the plant returns to normal, the yellowing will cease. When growing Japanese enkianthus indoors, always monitor moisture levels, avoid overwatering, and look out for black spots. If these are present, allow the soil to dry out for a few days before watering again. Overwatering can lead to root rot, so it may be necessary to transfer the plant to a different pot if discolored and slimy roots are noticed. Preventing root rot by avoiding excessive soil moisture is vital. When planting Japanese enkianthus outdoors, dig deeper and check the soil for dryness. If it is too dry, adequate watering is necessary for the plant's recovery.

When should I fertilize my Japanese enkianthus?

To effectively fertilize Japanese enkianthus, timing is crucial. Fertilizing too early while the plant is dormant would be ineffective as the fertilizer would be washed away by rainwater, causing waste and pollution. The recommended timing for the first application of fertilizer is in early spring. After that, continue fertilizing once a month until early summer.

What kind of sunlight does Japanese enkianthus require?

Japanese enkianthus thrives when exposed to full or part sun. For optimal growth, it is recommended to provide direct morning light, while also protecting the plant from the strong afternoon sun during summer. In temperate environments, excessive exposure to hot afternoon sun can result in leaf burn, negatively impacting the plant's overall appearance and health.

Do I need to change the temperature for Japanese enkianthus at different stages of growth?

According to research, Japanese enkianthus plants may experience slowed growth when exposed to extended periods of high temperatures, particularly when their axillary buds and main shoots are developing. To promote strong growth after germination or transplanting, it is beneficial to keep the temperatures consistent and cool, ideally around 65℉(18℃).

How frequently should I water my Japanese enkianthus?

The Japanese enkianthus prefers deep and infrequent watering, especially when planted in pots. When living in a cold region, water every 3 to 5 days, preferably in the morning when the soil is dry. Check the soil to determine if watering is needed, and if the top 2-3 inches are dry, it is time for a full watering. During hot days, check the moisture daily as the heat can quickly dry out the soil. If you have a garden, irrigation is necessary, and in a hot climate, watering once a week is sufficient. Consider rainfall when determining if additional watering is needed. In spring and fall, add 3 to 4 inches of mulch for better water conservation when the plants are outdoors. Sandy soil requires more frequent watering, while clay soil can go 2-3 days without watering to avoid root rot. Mark the watering dates on a calendar and pay attention to drooping leaves as a sign of needing water.

When is the best time to not put fertilizer on my Japanese enkianthus?

To ensure optimal growth and blooming of Japanese enkianthus, it is important to consider the timing and type of fertilizer used. Avoid high levels of nitrogen, as it tends to promote leaf growth rather than flower production. Look for fertilizers that have lower nitrogen content compared to other nutrients. Additionally, it is advisable to refrain from fertilizing after early autumn to prevent excessive growth right before winter. Moreover, during hot and dry periods, avoid fertilizing as dry soil is not as effective at delivering nutrients, and the stimulated growth requires more water that might not be readily available. Instead, it is best to apply fertilizer earlier in the season when temperatures are cooler. Lastly, keep in mind that Japanese enkianthus can absorb fertilizer from nearby plants or lawns, so be cautious and avoid unintentionally giving the tree or shrub a double dose of fertilizer.

Can sunlight harm Japanese enkianthus? How can I shield Japanese enkianthus from sun and heat damage?

When moving Japanese enkianthus plants indoors to outdoors, it is important to be cautious of direct sunlight, as it can cause damage. To prevent sunburns from overexposure, gradually move the pots from a shaded area to a brighter spot. However, even if the plants are acclimated to the sun, extreme heat can still harm them. During heatwaves, it is crucial to keep the soil consistently moist to help the plants cope with excessive heat levels. To protect sensitive Japanese enkianthus in extreme weather, consider moving container plants to shaded areas in the afternoon or using a shade cloth.

How do I help Japanese enkianthus stay warm during cold seasons?

Japanese enkianthus can tolerate freezing temperatures when planted in the ground in regions with minimum winter temperatures above 15℉ (-10℃). However, if planted in pots or containers, their roots need protection from the cold. To do so, you can wrap the container in a blanket or bring it indoors for complete protection from the elements.

PLATES
Enkianthus perulatus leaf
PLATE 01 · leaf
Enkianthus perulatus leaf
PLATE 02 · leaf
Enkianthus perulatus flower
PLATE 03 · flower
Enkianthus perulatus flower
PLATE 04 · flower
Enkianthus perulatus bark
PLATE 05 · bark
Enkianthus perulatus habit
PLATE 06 · habit
ALSO IN THE LIBRARY

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