Buddleja lindleyana — an easy houseplant, prefers full sun light
SPECIMEN · FROM THE LIBRARY
Buddleja lindleyana

Buddleja Lindleyana

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ON THIS PLANT

Buddleja lindleyana, commonly known as Lindley's butterfly bush, is a deciduous shrub native to China. It typically grows up to 3 meters tall and features long, narrow leaves that are gray-green in color. The plant produces clusters of fragrant purple flowers that bloom from mid-summer to early autumn, attracting butterflies and other pollinators.

Buddleja lindleyana is a hardy plant, capable of enduring a wide range of soil types and growing conditions. It prefers full sun or partial shade and requires moderate watering during the growing season.

In traditional Chinese medicine, the leaves of Buddleja lindleyana are valued for their anti-inflammatory properties and are used to treat skin conditions such as eczema.

Overall, Buddleja lindleyana is an attractive shrub with beautiful flowers that can add color to any garden or landscape while also providing important habitat for pollinators.

A note from PlantMom

Lindley's Butterflybush has strong disease resistance and is generally not susceptible to diseases. Care-wise, this plant is fairly low maintenance. When grown outdoors it needs little watering; larger specimens usually do not require pruning, though smaller plants should be pruned after they finish blooming. Lindley's Butterflybush is suitable for anyone with an outdoor space, such as a garden or deck, and does not require extensive care experience.

— PlantMom
CARE GUIDE

How to keep Buddleja Lindleyana.

Light

Lindley's Butterflybush thrives in abundant sunlight, though it can tolerate some shade. Coming from an environment with plentiful sun, it takes in substantial light to support growth. Too much light or too little light can impair its healthy development.

Water

Lindley's Butterflybush thrives in humid environments and requires regular moisture, typically needing to be watered weekly. It does well in temperate climate zones and benefits from natural rainwater, achieving a balanced hydration level. It is neither drought-tolerant nor excessively demanding in terms of water needs.

Temperature

Lindley's Butterflybush naturally grows in habitats where temperatures range from 41 to 95 °F (5 to 35 ℃). It does best within this temperature span and may need measures like insulation or shading during extremely cold or hot seasons.

Fertilizer

Applying fertilizer at the proper time is important for Lindley's Butterflybush. Start fertilizing in early spring and continue once a month until early summer. Fertilizer promotes attractive blooms and supplies energy during both dormant and active growth periods.

Pruning

To encourage blooming and shape your Lindley's Butterflybush, prune it in late spring after the risk of frost has passed. Trim away old wood and remove any dead branches to maintain the plant's health. Be sure to use sharp, clean tools to prevent the spread of disease. Regular pruning promotes denser foliage, more abundant flowers, and keeps the plant at a manageable size.

Pot & Repot

Repot Lindley's Butterflybush every 2 to 3 years in early spring, using a pot that is 2 to 3 inches wider than the previous one. After repotting, water the plant thoroughly and place it in a sunny location, being careful not to overwater. Use well-draining soil to support healthy growth, and handle the plant gently when transferring it to its new pot.

CHARACTERISTICS

Botanical profile.

Plant Type
Shrub
Life Cycle
Perennial
Genus
Buddleja
Family
Scrophulariaceae
Hardiness Zone
5-9
Mature Height
3.05 m
Mature Spread
2.13 m to 3.66 m
Leaf Color
Green, Gray
Leaf Type
Deciduous
Flower Color
Lavender, Purple
Flower Size
2.03 cm to 4.06 cm
Bloom Time
Summer, Early fall, Mid fall
Planting Time
Spring
Harvest Time
Fall
Native Area
China
ALSO KNOWN AS

Other names.

en Lindley's butterflybush en Aussie plume
FREQUENTLY ASKED

Reader questions.

What's the best way to water my Lindley's Butterflybush?

To ensure excellent root development, place a garden hose at the base of the plant. Avoid spraying the leaves directly, as they will need more watering if they are outdoors in direct sunlight. To moisten the roots, use bubblers for individual plants or soaker hoses for the entire garden or bed when adding or removing plants. After watering, drain any excess water and allow the soil to dry before watering again. Water at ground level to prevent diseases. On a sunny day, you can spray the entire bush with water. Whether in a pot or in the ground, remember that Lindley's Butterflybush prefers deep watering rather than light sprinkling.

Why should I put fertilizer on my Lindley's Butterflybush?

Fertilizing a Lindley's Butterflybush is important for several reasons. One obvious reason is that it helps the bush produce beautiful blooms. Fertilizing in early spring is especially beneficial for ensuring excellent flowers during that season. Additionally, fertilizer provides the bush with extra energy that can be stored in the ground during its dormant growth phases. By giving it nutrients during fall planting or late spring, the butterflybush will have more energy to use when active growth resumes.

What are the sunlight requirements for Lindley's Butterflybush?

Lindley's Butterflybush thrives best under full sun conditions, requiring more than 6 hours of sunlight daily, though it can also tolerate partial sun, getting about 3-6 hours of sunlight. Ensuring the right balance of light is crucial for its growth and health. It's important to monitor the movement of sunlight through your garden to find the optimal spots that offer a mix of light and shade.

What is the native temperature range for Lindley's Butterflybush?

Lindley's Butterflybush (Buddleja lindleyana) is natively grown in environments with temperatures ranging from 41 to 95°F (5 to 35°C). It thrives best within this temperature range. The plant has strong cold resistance, which means it usually doesn't require special frost protection measures during the winter. However, in anticipation of winter temperatures dropping below -25°C, it's crucial to protect the plant by wrapping its trunk and branches with insulating materials like non-woven fabric or cloth and to water it abundantly before the first freeze in autumn to keep the soil moist.

What should I do if I give too much or too little water to Lindley's Butterflybush?

If your Lindley's Butterflybush is overwatered, you may notice yellow leaves that eventually drop off and wilt. The plant may also appear dull and unhealthy, with mushy stems. In this case, it's best to adjust your watering schedule. Conversely, wilting can also be a sign of under watering. Under these circumstances, the leaves may become crispy and dry. In such situations, it's important to check the soil's moisture level and provide a thorough watering when it's dry. This will help the plant recover, although it may still have dry, yellow leaves for a few days due to a damaged root system. Once the plant is back to normal, the yellowing of leaves will stop. When maintaining an indoor Lindley's Butterflybush, it's crucial to avoid overwatering. Look for signs of black spots, and if present, allow the soil to dry out by withholding water for a few days. Overwatering can lead to root rot, so consider transferring the plant to a different pot if discolored and slimy roots are observed. Always aim to prevent root rot and avoid overly soggy soil. When planting the Lindley's Butterflybush outdoors, ensure that the soil is adequately moist. If you find the soil is too dry when checking with your fingers, it might indicate underwatering. Proper watering is essential for the plant's recovery.

When should I fertilize my Lindley's Butterflybush?

To effectively fertilize Lindley's Butterflybush, timing is crucial. Applying fertilizer too early, while the plant is still dormant, is ineffective as it will simply be washed away by rainwater, resulting in waste and pollution. It is best to apply the first round of fertilizer in the early spring and then continue fertilizing on a monthly basis until early summer.

How important is sunlight for the growth of Lindley's Butterflybush?

Sunlight plays a critical role in the growth of Lindley's Butterflybush, coming from an environment where it is exposed to ample sunlight. This plant absorbs a significant amount of light to support its growth process. Both overexposure and underexposure to sunlight can have negative effects on its development. In scenarios where natural light is insufficient, particularly during winter or in areas with limited sunlight, supplementing with artificial lighting, such as LED lights, can be beneficial. For indoor plants, it's recommended to provide 30-50W/sq ft of light for full sun plants, 20-30W/sq ft for partial sun, and 10-20W/sq ft for full shade plants.

What should be done if Lindley's Butterflybush experiences extremely low temperatures?

If Lindley's Butterflybush experiences extremely low temperatures, especially when it falls below -25°C, the branches may become brittle and dry, potentially leading to a lack of new shoots in spring. To address this, it is advisable to prune away any dead branches that have failed to produce new leaves come spring. This is part of ensuring the health and vitality of the plant despite the harsh winter conditions it might have faced.

How frequently do I need to water my Lindley's Butterflybush?

The Lindley's Butterflybush prefers deep and infrequent watering. If you have them in pots, make sure to soak them in a gallon of water each time. Potted plants have limited water storage, so their soil dries out faster. In colder regions, water every 3 to 5 days. Water them in the morning when the soil is dry, whether they're indoors or outdoors. To know when to water, check the soil inside the pot. If the top 2-3 inches are dry, it's time to water thoroughly. During hot days, check the moisture daily as the heat can quickly dry out the pot's soil. In a garden, irrigation of the soil is necessary. In hot climates, water once a week when about 2 to 3 inches of soil becomes too dry indoors or outdoors. Be mindful of rainfall, as you may not need to water the plants if there is already ample rainwater. For outdoor plants, add 3 to 4 inches of mulch to conserve more water. Sandy soil drains faster, so plants in it will need more frequent watering. Clay soil, on the other hand, retains moisture better, so water less frequently to avoid root rot. Keep track of your watering schedule on a calendar and look for wilted leaves as an indication that you might be late in watering.

When is it not a good idea to fertilize my Lindley's Butterflybush?

To keep Lindley's Butterflybush healthy and promote blooming, it's important to use a fertilizer with less nitrogen compared to other nutrients. Avoid fertilizing after early autumn, as this can result in excessive growth before winter. Additionally, refrain from fertilizing during hot and dry periods, as dry soil is not as effective in delivering nutrients and can stimulate growth that requires more water. It's best to fertilize earlier in the season when temperatures are cooler. Lastly, be careful not to inadvertently give the butterfly bush too much fertilizer if nearby plants or lawns have already been fertilized.

What are the symptoms of inadequate lighting for Lindley's Butterflybush?

Inadequate lighting can result in several symptoms for Lindley's Butterflybush, including smaller new leaves compared to older ones, leggy or sparse growth due to elongated spaces between leaves or stems, faster leaf drop as a response to conserve resources, slower growth or a complete halt in new leaf production, leaves developing irregular color patterns or appearing pale indicating a lack of chlorophyll, chlorosis or yellowing of leaves due to chlorophyll breakdown from excessive sunlight, sunscald characterized by damaged leaves or stems from intense sunlight, leaf curling or twisting as a defense mechanism against extreme sunlight, wilting from increased water loss due to overexposure to sunlight, and leaf scorching evidenced by brown, dry edges on leaves from excessive light.

How do high temperatures affect Lindley's Butterflybush, and what are the solutions?

High temperatures, particularly above 35°C, can negatively affect Lindley's Butterflybush. When the temperature exceeds 38°C, the leaves may become lighter in color, and their tips can become dry and withered, which increases the plant's susceptibility to sunburn. To mitigate these effects, it is recommended to trim away any sunburned and dried-up parts of the plant. Additionally, moving the plant to a shaded location or using a shade cloth during the midday and afternoon sun can be beneficial. Keeping the soil moist through morning and evening watering is also crucial during hot weather.

PLATES
Buddleja lindleyana leaf
PLATE 01 · leaf
Buddleja lindleyana leaf
PLATE 02 · leaf
Buddleja lindleyana flower
PLATE 03 · flower
Buddleja lindleyana flower
PLATE 04 · flower
Buddleja lindleyana bark
PLATE 05 · bark
Buddleja lindleyana bark
PLATE 06 · bark
ALSO IN THE LIBRARY

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