Styrax officinalis — an easy houseplant, prefers full sun light
SPECIMEN · FROM THE LIBRARY
Styrax officinalis

Styrax Officinalis

Updated · 351 observations
ON THIS PLANT

Styrax officinalis is a species of shrub in the family Styracaceae.

A note from PlantMom

The storax tree has good resistance to disease and is generally not susceptible to illnesses. Regarding care, this plant is fairly low maintenance. When grown outdoors it needs only minimal watering, and larger specimens usually do not require pruning. Smaller plants, however, should be pruned after they finish blooming. The storax tree is appropriate for anyone who has an outdoor area, such as a garden or deck, and does not demand extensive horticultural experience.

— PlantMom
CARE GUIDE

How to keep Styrax Officinalis.

Light

The storax tree prefers sites that get sunlight for the majority of the day, though it can adapt to places with somewhat less sun. From its origin it prospered in well-lit surroundings. Excessive or insufficient light can cause stress and adversely affect its health.

Water

The Storax tree flourishes in areas with moderate rainfall, as it prefers a balanced level of moisture. While it can tolerate drought, it needs watering every three weeks to prevent waterlogging. Generally, this tree is grown outdoors, and its growth cycle is adapted to seasonal rainfall, ensuring optimal water absorption.

Temperature

The storax tree originates from regions where temperatures commonly range from 59 to 100.4 °F (15 to 38 ℃). It does well in temperate climates and generally copes well with seasonal temperature shifts. Sudden cold snaps may require extra protection for younger plants.

Fertilizer

The timing of fertilization is vital for the Storax tree. Apply fertilizer in early spring and continue monthly until early summer. Fertilizer encourages attractive blooms and supplies energy during both dormant and active growth phases.

Pruning

The Storax tree is distinguished by its fragrant white flowers and rounded canopy. For optimal growth and shape, prune the tree in late spring after it has finished blooming. Remove any dead or crowded branches by cutting just above outward-facing buds to encourage recovery and enhance flowering. This will also help maintain good air circulation. Be sure to use clean, sharp tools for the best results.

CHARACTERISTICS

Botanical profile.

Plant Type
Shrub
Life Cycle
Perennial
Genus
Styrax
Family
Styracaceae
Hardiness Zone
8-11
Mature Height
1.83 m to 4.88 m
Mature Spread
4.88 m
Leaf Color
Green, Dark Green
Leaf Type
Deciduous
Flower Color
White
Flower Size
2.03 cm
Bloom Time
Mid spring, Late spring
Planting Time
Winter, Spring, Summer, Autumn
Harvest Time
Late summer, Early fall, Mid fall
Native Area
Turkey, Syria, Italy, Cyprus, Albania, Greece, Croatia, Lebanon
ALSO KNOWN AS

Other names.

en Storax en Friar's balsam en Drug Snowbell en Snowdrop Bush en Officinal storax en Officinal styrax en Rahman mofarrahi
FREQUENTLY ASKED

Reader questions.

How should I water my Storax tree in the best way?

To ensure excellent root development, place a garden hose at the base of the plant. Avoid spraying the leaves directly, especially if they are outdoors in direct sunlight as they will require more watering. Using bubblers or soaker hoses can effectively moisten the roots. When adding or removing plants, consider using soaker hoses that cover the entire garden or bed to encourage deep root growth. Drain any excess water and wait for the soil to dry before watering again. Watering at ground level can help prevent diseases. On sunny days, it may be beneficial to spray the entire bush with water. Whether potted or in-ground, remember that the Storax tree prefers deep watering rather than light sprinkling.

Why should I put fertilizer for my Storax tree?

Ensuring that your Storax tree produces beautiful blooms is just one of the important reasons to fertilize it. Fertilizing in early spring is a top recommendation to guarantee excellent flowers during that season. Additionally, fertilizer provides your Storax tree with ample energy to store in the ground when it goes into its dormant growth phases. By giving your Storax tree extra nutrients during fall planting or late spring, it will have more energy to utilize when active growth resumes.

What are the sunlight requirements for planting areas?

Sunlight plays a crucial role in the health of your garden plants. Full sun areas receive over 6 hours of sunlight daily, making them ideal for plants that thrive in lots of light. Partial sun areas get about 3-6 hours of sunlight and are suitable for plants needing moderate exposure. It's important to watch how sunlight moves through your garden and choose spots that provide the right balance of light and shade, ensuring your plants' happiness.

What temperature is best for a Storax tree?

Plants can be affected by colder temperatures because they take on the temperature of the air around them. When they are in direct sunlight, they can warm up again, but this doesn't happen during the winter. The Storax tree, for example, thrives in temperatures between 70-85℉ (21-30℃). It can tolerate lower temperatures like 20-30℉ (-6-0℃) or even 15℉ (-10℃), but only for short periods, as it can lead to frost damage. It's important to keep the maximum temperatures around 70-85℉ (21-30℃) and provide occasional water spray and shade to prevent wilting.

What should I do if I give the Storax tree too much or too little water?

If a Storax tree is overwatered, its leaves can turn yellow, drop off, and wilt. The plant may appear dull and unhealthy, with mushy stems. If you notice these signs, try adjusting your watering schedule. Wilting can also indicate under watering, in which case the leaves will become crispy and dry. If the soil is dry and simply watering is not enough, give the tree a thorough watering. However, even with enough water, the damaged root system may cause the tree to still have dry, yellow leaves after a few days. Once the tree returns to normal, the yellowing of leaves will stop. For indoor Storax trees, always check the moisture levels in the pot and avoid overwatering. Look out for black spots, and if present, allow the soil to dry by refraining from watering for a few days. Overwatering can lead to root rot, so transfer the plant to a different pot if you see discolored and slimy roots. Prevent root rot by avoiding overly soggy soil. When planting your Storax tree outdoors, check the soil by digging a little deeper. If the soil feels dry, it may be underwatering, and adequate watering is necessary to help the plant recover.

When should I fertilize my Storax tree?

It is important to time the fertilizer application for Storax trees correctly. Applying fertilizer too early, while the tree is still dormant, will be ineffective and cause waste and pollution as it gets washed away by rainwater. The first application of fertilizer should be done in early spring, and thereafter, continue fertilizing once a month until early summer.

How does the Storax tree respond to sunlight?

The Storax tree (Styrax officinalis) prefers being bathed in sunlight for the majority of the day but adjusts well to slightly less solar exposure. Originating in well-lit environments, it flourishes in ample light; however, both excessive and insufficient light can stress the plant, affecting its health. In scenarios where natural sunlight is lacking, especially during winter or in less sunny spaces, artificial lighting becomes essential for optimal growth. LED lights, offering customizable wavelengths, are a common choice. Full sun plants require 30-50 watts per square foot, partial sun plants 20-30 watts per square foot, and full shade plants 10-20 watts per square foot of artificial light.

Do I need to change the temperature for Storax tree as it grows?

When growing a Storax tree, it's important to do some research and ensure the temperature is suitable. Some growers may lower the plants' thermostats during the growing season to save on HVAC costs. However, it's crucial to understand that temperature can impact flowering, pest management, and overall plant quality. During winter, certain species of Storax tree may enter a dormant state and stop growing. As the season changes and the base temperature increases, the Storax tree can grow faster. Species naturally found in warm habitats have higher optimum temperatures compared to those that thrive in cooler climates. Exposing Storax tree seeds to cool temperatures can lead to decreased uniformity and delays. It may be beneficial to lower the temperature during flowering, but not at other stages. Cooler nighttime temperatures also require less water, so make sure to adjust irrigation accordingly.

How frequently do I need to water my Storax tree?

The Storax tree prefers deep and infrequent watering, especially when it is planted in pots. In pots, the soil dries out faster due to limited water storage. In cold regions, watering is needed every 3 to 5 days. It is best to water the tree early in the morning when the soil is dry, both outdoors and indoors. You can also check the soil to determine if watering is needed – when the top 2-3 inches are dry, it is time to water the plant fully. On hot days, check the moisture daily as heat can quickly dry out the soil in the pot. If you have a garden, you should also irrigate the soil. In hot climates, watering once a week is recommended. Only water the plant when about 2 to 3 inches of soil become too dry, whether indoors or outdoors. Take into consideration the amount of rainfall and avoid adding water to prevent root rot. Additional watering may not be necessary if there is already sufficient rainfall. Storax trees generally grow during spring and fall. When outdoors, it is beneficial to add 3 to 4 inches of mulch to conserve more water. Sandy soil drains faster, so it requires more frequent watering. On the other hand, clay soil requires less frequent watering – you can allow the plant to dry for 2-3 days without developing root rot. To keep track of watering, you can mark the date on a calendar and pay attention to any drooping leaves, which may indicate that watering is needed soon.

When is it not a good idea to fertilize my Storax tree?

To optimize the growth and blooming of the Storax tree, it is important to be mindful of the nitrogen content in the fertilizer. Excessive nitrogen can result in an abundance of leaves but few blooms. Therefore, it is recommended to choose a fertilizer that has a lower nitrogen level compared to other nutrients. It is also advisable to avoid fertilizing the Storax tree after early autumn, as this can lead to excessive growth right before winter. Additionally, it is not advisable to fertilize the tree during hot and dry periods, as dry soil does not effectively deliver the nutrients and the growth stimulated by fertilizer may require more water than is available. It is best to apply fertilizer earlier in the season when temperatures are cooler. Lastly, it is important to note that the Storax tree can absorb fertilizer from nearby plants or lawns. Therefore, caution should be exercised to avoid inadvertently providing the tree with an excessive amount of fertilizer.

What are the symptoms of insufficient or excessive light exposure in Storax trees?

Storax trees display various symptoms in response to light conditions. Insufficient light may cause smaller new leaves, leggy growth, early leaf drop, slower or halted new growth, pale or irregularly colored new leaves, and conditions like chlorosis (leaf yellowing). Excessive sunlight can lead to sunscald (damaged plant tissues from intense exposure), leaf curling (as a defense against water loss), wilting (from transpiration-induced dehydration), and leaf scorching (brown, dry edges on leaves). These symptoms underscore the plant's struggle to adapt to its lighting environment.

How do I make sure the Storax tree stays warm during the cold seasons?

To help the Storax tree withstand colder temperatures, it's important to stop fertilizing it, which will prevent new growth and allow the existing growth to become more resistant. Creating structures like cages or trellises can protect the tree and keep it warm. Another option is to use heat mats, which can gently warm the soil and maintain a consistent temperature range ideal for the Storax tree.

PLATES
Styrax officinalis leaf
PLATE 01 · leaf
Styrax officinalis leaf
PLATE 02 · leaf
Styrax officinalis flower
PLATE 03 · flower
Styrax officinalis flower
PLATE 04 · flower
Styrax officinalis fruit
PLATE 05 · fruit
Styrax officinalis fruit
PLATE 06 · fruit
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