Lagerstroemia speciosa — an easy houseplant, prefers full sun light
SPECIMEN · FROM THE LIBRARY
Lagerstroemia speciosa

Lagerstroemia Speciosa

Updated · 2,393 observations
Photo · (c) Mark Roberts, some rights reserved (CC BY-NC), uploaded by Mark Roberts COURTESY INATURALIST
ON THIS PLANT

Lagerstroemia speciosa (giant crepe-myrtle, Queen's crepe-myrtle, banabá plant, or pride of India) is a species of Lagerstroemia native to tropical southern Asia. It is a deciduous tree with bright pink to light purple flowers.

A note from PlantMom

Pride of India is resistant to disease and typically not susceptible to illnesses. In terms of care, this plant is fairly low-maintenance. When grown outdoors it needs minimal watering, and larger plants usually do not require pruning. Smaller plants, however, should be pruned after they have bloomed. Pride of Indiat is suitable for anyone with an outdoor area, such as a garden or deck, and does not demand extensive care experience.

— PlantMom
CARE GUIDE

How to keep Lagerstroemia Speciosa.

Light

Pride of India prefers abundant, unobstructed sunlight. Its vigorous growth is supported by this strong light. In its native environment the tree does best with optimal sunlight, which is an essential part of its habitat. Both too much and too little light can affect the tree’s health: excessive exposure can cause leaf burn, while insufficient light can limit growth.

Water

The Pride of India is a tropical evergreen plant that thrives in high humidity and needs moderate watering. To ensure optimal growth, it's best to water the plant every two weeks, particularly during its active growth phases, to encourage vibrant blooming. Although it is usually grown outdoors, the Pride of India strikes a balance between being drought-resistant and preferring moist conditions.

Humidity

This plant will thrive in moderate humidity, which is probably the level in your home. However, misting it a few times a week can be very beneficial. Make sure the room has good ventilation.

Temperature

Native to regions with moderate to high temperatures, pride of India prospers in a temperature range of 59 to 95 °F (15-35 ℃). In cooler seasons, indoor heating may be necessary to maintain this ideal temperature zone.

Fertilizer

Proper timing is essential when fertilizing Pride of India. Apply fertilizer in early spring and continue monthly until early summer. Fertilizer encourages beautiful blooms and supplies energy both during dormancy and throughout periods of active growth.

Pruning

The Pride of India boasts vibrant flowers and benefits greatly from strategic pruning. This process involves removing dead or crossing branches to improve air circulation and light access. Pruning should be done in early spring to avoid stressing the plant through excessive pruning. These practices are well-supported by reliable horticultural sources.

Pot & Repot

Repot the Pride of India plant every 2-3 years to promote healthy growth. This practice provides fresh soil and additional space for root expansion, which are essential for the plant’s vitality and longevity.

CHARACTERISTICS

Botanical profile.

Plant Type
Tree
Life Cycle
Perennial
Genus
Lagerstroemia
Family
Lythraceae
Hardiness Zone
7-10
Mature Height
9.14 m to 18.29 m
Mature Spread
9.14 m to 11.89 m
Leaf Color
Dark Green, Forest Green
Leaf Type
Deciduous
Flower Color
Pink, Purple
Flower Size
2.54 cm to 7.62 cm
Bloom Time
Late spring, Early summer, Mid summer
Planting Time
Spring, Autumn
Harvest Time
Mid summer, Late summer
Native Area
Sri Lanka, India, Malaysia, Indonesia, Cambodia, Vietnam, Myanmar, Philippines, Laos, Thailand
ALSO KNOWN AS

Other names.

en Queen's crape-myrtle en Pride-of-India en Queen's-flower en Pride of India en Queen of Flowers en Queen Crape Myrtle en Bloodwood en Rose of India en Queen flower en Crepe-myrtle en Crape Myrtle en Zi wei en জারুল ফুল /jarul flower en ফুরুশ en Gul e Fanoos en Queen’s Lace Crape en Myrtle en Azar hi जरुल ar توری ملکه ar گل فانوس
FREQUENTLY ASKED

Reader questions.

How can I water my Pride of India tree in the best way?

To promote excellent root development, place a garden hose at the base of the plant. Avoid spraying water directly on the leaves. Keep in mind that outdoor plants in direct sunlight will need more watering. Use bubblers or soaker hoses to keep the roots moist. For effective watering, cover the entire garden or bed with the soaker hose and ensure excess water has drained before re-watering. Water at ground level to prevent diseases. On sunny days, consider spraying the entire bush with water. Remember, whether potted or in-ground, Pride of India plants prefer deep watering rather than light sprinkling.

Why should I put fertilizer on my Pride of India plant?

Fertilizing your Pride of India is important for several reasons. Firstly, it will help your plant produce beautiful blooms. The best time to fertilize is in early spring, ensuring excellent flowers during that season. Additionally, fertilizer provides the plant with energy that it can store in the ground during dormant growth phases. By giving your Pride of India extra nutrients during fall planting or late spring, it will have more energy to use when active growth resumes.

What are the sunlight requirements for Pride of India?

Pride of India requires significant sunlight exposure to thrive, preferring extensive, unobstructed sunlight. This plant demonstrates robust growth when it receives optimal sunlight in its native habitat, making unfiltered light an essential aspect of its care. Notably, too much or too little light can adversely affect the plant's health: excessive exposure may cause leaf burn, while insufficient light can impede growth. It's crucial to observe how sunlight moves through your garden, selecting areas that offer a balance of light and shade to ensure the plant's well-being.

What are the ideal temperature conditions for Pride of India?

Pride of India flourishes in environments where the temperature ranges from 59 to 95°F (15-35°C), thriving best in moderate to high temperatures. Although it has a strong cold resistance and special frost protection is usually not necessary, it's important to take measures to protect the plant if winter temperatures are expected to drop below -15°C. This can include wrapping the trunk and branches with non-woven fabric or cloth and ensuring the soil remains moist before the first freeze in autumn to prevent drought and water scarcity during the winter and early spring.

What should I do if I give too much or too little water to Pride of India?

When a Pride of India plant is overwatered, it can display several signs of distress. The leaves may turn yellow, drop off, and become wilted. The plant may also appear dull and unhealthy, with mushy stems being a common indication. To address these issues, it is recommended to adjust your watering schedule whenever possible. It's worth noting that wilting can also be a sign of under watering, characterized by crispy and dry leaves. In such cases, check the soil; if it is dry, simply watering it may not be enough. Consider giving the plant a thorough watering to ensure sufficient moisture. Although this will help the Pride of India recover, it may still exhibit dryness and yellow leaves due to root damage, but this will ultimately cease once it returns to its normal state. When keeping the Pride of India indoors, always monitor the moisture levels of the pot and avoid overwatering. Keep an eye out for signs of black spots, and if detected, allow the soil to dry out for a few days before resuming watering. Overwatering can lead to root rot, so if you observe discolored and slimy roots, it may be necessary to move the plant to a different pot. It is crucial to prevent root rot by avoiding excessively soggy soil. For outdoor planting, ensure the soil is properly hydrated by checking its moisture level. If the soil feels too dry, it could be a sign of underwatering, in which case adequate watering is required to aid in the plant's recovery.

When should I fertilize my Pride of India plant?

To ensure effective fertilization of the Pride of India, timing is crucial. Applying fertilizer too soon while the plant is still dormant can lead to ineffective usage, as it will be washed away by rainwater, causing pollution and wastage. Start fertilizing in early spring and continue monthly until early summer.

How can artificial lighting be used for indoor Pride of India plants?

When natural sunlight is insufficient, especially in winter or less sunny spaces, artificial lighting becomes crucial for the growth of indoor Pride of India plants. It's advisable to use LED lights, which can be tailored to provide specific wavelengths needed by the plant. The required intensity of artificial light varies: full sun plants need 30-50W/sq ft, partial sun plants need 20-30W/sq ft, and full shade plants require 10-20W/sq ft. For effective growth, the light source should be positioned 12-36 inches above the plant, simulating natural sunlight for 8-12 hours per day.

How does low temperature affect Pride of India and what are the solutions?

Pride of India is cold-tolerant and manages well with temperatures above 15°C. During the winter, temperatures should be kept above -10°C. If temperatures fall below -15°C, the plant may not show immediate changes, but in spring, its branches could become brittle and dry, with no new shoots emerging. The solution in spring involves pruning away any dead branches that failed to produce new leaves to encourage healthy new growth.

How frequently should I water my Pride of India plant?

To ensure the health of your Pride of India plants, it is best to water them deeply and infrequently. If your plants are in pots, they will need to be soaked in a gallon of water each time due to the limited water storage in the pots. In colder regions, watering every 3 to 5 days is necessary. It is best to water them in the morning when the soil is dry, both outdoors and indoors. You can check if watering is needed by examining the soil inside. When the top 2-3 inches of soil are dry, it is time to give the plant a full watering. On hot days, check the moisture in the soil daily as the heat can quickly dry it out. If you have a garden, you will also need to irrigate the soil. In hot climates, watering once a week is sufficient, but make sure to only water when the top 2-3 inches of soil are too dry. Take into account rainfall and avoid overwatering to prevent root rot. Pride of India plants typically grow in spring and fall. When they are outdoors, consider adding mulch about 3 to 4 inches deep to retain more water. In sandy soil, more frequent watering is necessary due to its fast drainage, while clay soil requires less frequent watering to prevent root rot. To keep track of when you last watered, mark the date on the calendar. If the leaves start to droop, it may be an indication that you are a day late in watering.

When should I not put fertilizer on my Pride of India plant?

To ensure proper blooming, be cautious when fertilizing Pride of India. Avoid using fertilizers with excessive nitrogen levels, as this can result in an abundance of leaves but not many blooms. Instead, opt for fertilizers that have lower nitrogen levels compared to other nutrients. Timing is also important. Refrain from fertilizing Pride of India after early autumn, as this can cause excessive growth right before winter. Additionally, during hot and dry periods, hold off on fertilizing, as dry soil is not as effective at delivering nutrients. Fertilizing during these times can also stimulate growth, requiring more water that may not be readily available. It is better to apply fertilizer earlier in the season when temperatures are cooler. Lastly, be mindful that Pride of India can absorb neighboring plant or lawn fertilizers. Therefore, avoid inadvertently giving the tree or shrub a double-dose of fertilizer.

What symptoms indicate insufficient or excessive sunlight in Pride of India?

Indications of suboptimal lighting for Pride of India include small, mature leaves, leggy or sparse growth, faster leaf drop, halted new growth, and symptoms of chlorosis such as leaves turning yellow. Additionally, sunscald, leaf curling, wilting, and leaf scorching can occur due to excessive sunlight. These signs reflect the plant's struggle to adapt to its light environment, either by trying to conserve resources under low light conditions or protect itself from intense sunlight exposure.

How does high temperature affect Pride of India and what are the solutions?

In summer, it’s essential for Pride of India to be in conditions below 35°C. Exceeding 41°C can cause the leaves to lighten in color, the tips to become dry and withered, and increase susceptibility to sunburn. To mitigate these effects, trim away the sunburned and dried parts of the plant, move it to a shaded location or use a shade cloth to protect it from the midday and afternoon sun. Additionally, watering the plant in the morning and evening can help keep the soil adequately moist.

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