Luma apiculata
Chilean myrtle · Shortleaf stopper · Luma myrtle
Description
Source: leafsnapLuma apiculata, commonly known as the Chilean myrtle or Arrayán, is a small evergreen tree or shrub native to southern Chile and Argentina. Belonging to the Myrtaceae family, it can grow up to 10 meters tall in its natural habitat. The plant features smooth bark that peels off in thin layers, revealing a cinnamon-colored layer underneath. The glossy, dark green leaves of Luma apiculata are oval-shaped and measure about 2-4 cm in length. When crushed, the leaves emit an aromatic scent. The plant produces small white flowers with five petals that bloom in late spring or early summer. The fruit of Luma apiculata is a dark purple, berry-like drupe containing several seeds. While these fruits are edible, they have a slightly bitter taste. Luma apiculata is often used as an ornamental plant due to its attractive foliage, distinctive bark, and fragrant flowers. It can be cultivated as either a tree or shrub, depending on the pruning techniques applied by gardeners. Aside from its ornamental value, Luma apiculata is also esteemed for its medicinal properties in traditional South American medicine. It is believed to help treat respiratory issues such as asthma and bronchitis due to its anti-inflammatory effects. Overall, Luma apiculata is a highly valued evergreen plant appreciated for both its aesthetic appeal in gardens and its medicinal uses in traditional practices, making it a favorite among gardeners who seek both beauty and functionality from their plants.
Care Guide
💧 Water Every 7 days
Chilean myrtle flourishes in humid temperate forests and exhibits moderate drought tolerance. It prefers consistent moisture, requiring watering every two weeks. As an evergreen, the Chilean myrtle maintains its hydration throughout the year, which supports its glossy green foliage. This makes it suitable for growth both indoors and outdoors.
What should I do if I give my Chilean myrtle plant too much water or not enough water?
Outdoor plants, especially newly planted ones or seedlings, are prone to lack of watering. It is important to ensure sufficient watering for a few months when the tree is small or has just been planted. Once the roots are established, Chilean myrtle can mostly rely on rain. When planting Chilean myrtle in pots, overwatering is a common issue. If you accidentally overwater your Chilean myrtle, it is important to take immediate action. First, stop watering the plant to minimize the impact of overwatering. Then, remove the plant from its pot to check the roots. If there is no root rot present, you can return the plant to its container. However, if you notice signs of root rot, trim any affected roots and consider using a fungicide to prevent further damage. Finally, repot the Chilean myrtle in well-draining soil. On the other hand, underwatering a Chilean myrtle is usually an easy problem to fix. If you notice drooping and drying out of the leaves, water the plant more frequently. With sufficient watering, the leaves will quickly regain their fullness. Make sure to adjust your watering frequency promptly if you notice the plant is underwatered.
How should I water my Chilean myrtle plant to make it thrive?
Your Chilean myrtle is not particular about how you water it—you have flexibility in choosing watering tools. You can use a watering can, hose, or even a cup to water this plant. Whichever tool you use, make sure to water the soil directly. It's important to evenly moisten all areas of the soil so that the entire root system gets the water it needs. Filtered water is recommended to avoid any harmful particles that may be in tap water. Additionally, using water at or slightly above room temperature is beneficial, as extremely hot or cold water can be a shock to the Chilean myrtle. However, this plant generally responds well to any type of water you provide.
How frequently should I water my Chilean myrtle?
Most outdoor plants rely on rainfall for their water needs. If you live in an area with less rainfall, it is important to water your plants adequately. During spring and fall, watering every two weeks should be sufficient. However, in the summer, when plants require more water, you will need to water them more frequently. In the winter, plants grow more slowly and require less water, so you can water them sparingly or not at all. If you have a young or newly planted Chilean myrtle, it is important to water it more often to help it become established and grow into a drought-tolerant plant. For potted plants, there are two main approaches to determining watering frequency for your Chilean myrtle. The first is to follow a set schedule, such as watering once a week or every other week. However, this may not always be accurate for your specific growing conditions. Another option is to monitor the soil moisture. Wait until the top two to four inches of soil, or about one-third to one-half of the depth of the pot, have dried out before watering again. This method allows you to adjust your watering frequency based on the needs of the plant throughout the year.
How much water does my Chilean myrtle plant require?
When watering your Chilean myrtle, you may be surprised to find that it doesn't always need a lot of water. If only a few inches of soil have dried since the last watering, you can give it about five to ten ounces of water each time. You can also determine how much water to give based on the soil moisture. Pay attention to how many inches of soil have dried between waterings. To ensure your Chilean myrtle gets enough moisture, water enough to moisten all the dry soil layers since the last watering. If more than half of the soil is dry, you may need to give more water than usual. In these cases, keep adding water until you see excess water draining from the pot's holes. If your Chilean myrtle is planted outdoors in a rainy area, it may not need extra watering. When it's young or establishing, it should receive 1-2 inches of rain per week. As it grows and establishes, it can rely solely on rainwater. Only when it's hot and there's no rain for 2-3 weeks should you give it a full watering to prevent stress.
How do I know if I'm giving enough water to my Chilean myrtle?
The Chilean myrtle commonly faces issues with overwatering. To identify this problem, keep an eye out for yellowing leaves and potential leaf loss. Excessive watering can also cause the plant's structure to shrink and encourage root rot. Conversely, an underwatered Chilean myrtle will start to droop and may develop brown or brittle leaves. Regardless of whether you notice signs of overwatering or underwatering, it's important to take action promptly to revive your Chilean myrtle's wellbeing.
☀️ Light Full sun
Native to sun‑rich habitats, the Chilean myrtle grows best with abundant daylight throughout the day. It can, however, tolerate diffused light or times when it doesn't receive full sun. Excess light may scorch the leaves, while too little light can hinder its growth.
What are the sunlight requirements for the Chilean myrtle?
The Chilean myrtle, or Luma apiculata, thrives best in environments that offer abundant sunlight, similar to its native habitats. It needs full sun, identified as over 6 hours of sunlight daily, for optimal growth but can also adapt to partial sun, which means about 3-6 hours of sunlight. However, it's important to watch the sunlight's movement through your garden to provide your plants a good balance of light and shade, mitigating the risk of leaf scorch from overexposure and stunted growth from insufficient light.
How can artificial lighting be used for indoor Chilean myrtle plants?
For indoor Chilean myrtle plants, when natural sunlight is scarce, especially in winter or less sunny spaces, artificial lighting serves as an essential solution for ensuring optimal growth. LED lights are a favored choice due to their ability to offer customizable wavelengths needed by the plants. Full sun plants require 30-50W per square foot, partial sun plants need 20-30W per square foot, and full shade plants need 10-20W per square foot of artificial light. The light source should be placed 12-36 inches above the plant, mimicking natural sunlight conditions, and kept on for 8-12 hours daily to simulate the natural length of daylight hours appropriate for the plant species.
What symptoms indicate a Chilean myrtle is receiving poor lighting?
Chilean myrtle, when not receiving adequate sunlight, may show several symptoms. These include smaller new leaves, leggy or sparse growth, faster leaf drop, slower or no new growth, and lighter-colored or chlorotic leaves, indicating a lack in chlorophyll and essential nutrients. Excessive sunlight can result in sunscald, characterized by pale, bleached areas on plant tissue, leaf curling as a defense mechanism against water loss, wilting due to turgor pressure loss, and leaf scorching with brown, dry edges on leaves.
What solutions are recommended for Chilean myrtles suffering from poor lighting?
For both indoor and outdoor Chilean myrtles experiencing insufficient light, gradually moving them to spots with at least 6 hours of direct sunlight daily is recommended. For non-movable indoor plants, using artificial lights such as desk lamps or professional grow lights for at least 8 hours a day can help. Outdoors, avoid drastic light intensity changes to prevent sunburn. For ground-planted myrtles, reducing sunlight obstructions by pruning and considering transplanting during dormant periods to locations with ample sunlight and good drainage can aid in recovery. Note that parts affected by insufficient light may not recover, but new growth will be healthy with improved light conditions.
🌡️ Temperature 15–37.8°C
Chilean myrtle commonly thrives in its native habitat where temperatures range from 59 to 100 °F (15 to 38 ℃). The plant prefers mild to warm conditions. It is advisable to adjust care during cooler seasons to maintain these optimal temperatures.
What is the ideal temperature range for Chilean myrtle?
Chilean myrtle thrives best in its native habitat within a temperature range of 59 to 100°F (15 to 38°C), preferring a mild to warm environment. It has some cold tolerance, generally not requiring additional cold protection if temperatures stay above -5°C. However, temporary measures should be taken for cold protection, such as wrapping the plant in plastic film, fabric, or other materials, if the temperature is expected to drop below -5°C. These protective measures must be removed once the temperature rises again to ensure the plant's health.
How does Chilean myrtle react to low temperatures?
Chilean myrtle has a moderate tolerance to low temperatures, thriving best when temperatures are above 15°C and should be kept above -5°C during winter. If temperatures fall below -10°C, the plant's leaves may start to droop; they can recover in mild cases, but in severe cases, leaves will wilt and eventually fall off. To protect Chilean myrtle in low temperatures, trim off frost-damaged parts and wrap the plant with materials like non-woven fabric or cloth. Additionally, constructing a wind barrier can help protect it from cold winds.
How does Chilean myrtle react to high temperatures?
During the summer, it is best to keep Chilean myrtle below 38°C to prevent stress from high temperatures. If temperatures exceed 43°C, the plant's leaves may lighten in color, tips can become dry and withered, leaves may curl, and the plant becomes more susceptible to sunburn. To mitigate high temperature damage, trim away sunburned and dried-up parts of the plant, move it to a shaded location away from the midday and afternoon sun, or use a shade cloth for protection. Watering the plant in the morning and evening is also beneficial to keep the soil moist and help the plant cope with the heat.
💨 Humidity
🪴 Soil 5-6
🌱 Fertilizer
Timing is essential when fertilizing Chilean myrtle. Apply fertilizer in early spring and continue monthly through early summer. Fertilizer encourages attractive blooms and supplies energy during both dormant and active growth phases.
How can I nourish my Chilean myrtle plant?
To properly fertilize your Chilean myrtle, it's important to follow the specific instructions for the type of fertilizer you are using. Take the time to do some research on how to use the fertilizer for your particular plant. Avoid over-fertilizing, as it can be harmful to your Chilean myrtle. The key is to determine the correct amount of fertilizer to use. A general guideline is to consider the age of the tree or the diameter of the trunk. Typically, you can estimate using one-tenth of a pound of fertilizer per year or per inch of trunk. However, keep the maximum amount to one pound. When applying granular fertilizers or organic options like blood meal, sprinkle the substance around the base of the tree, extending it all the way to the drip line (the area beneath the outermost branches). Remember to avoid letting the fertilizer come into contact with the trunk. Over time, the granules will break down and filter into the soil, providing nutrients to the roots. After applying the fertilizer, spread a layer of compost around the base, about an inch deep, and water the tree thoroughly.
What will happen if I use too much fertilizer on my Chilean myrtle?
When it comes to fertilizing, it's better to use too little than too much. If you over-fertilize your Chilean myrtle, you may notice brown leaf tips and edges, yellowing, wilting leaves, and possibly a visible crust of fertilizer salts on the soil around the tree. This is called fertilizer burn and happens when there are too many salts in the plant's cells. If the issue is too much nitrogen, the Chilean myrtle will have plenty of leaves but won't produce many flowers, since nitrogen promotes foliage growth. If you find that you've over-fertilized, you can remove the top layer of soil under the tree to get rid of the concentrated fertilizer. Then, water heavily to flush out any remaining fertilizer around the roots.
Why should I add fertilizer to my Chilean myrtle?
To ensure your Chilean myrtle produces beautiful blooms, it is essential to fertilize it. Fertilizing in early spring is particularly effective for promoting excellent flowers during that season. Additionally, fertilizer provides the Chilean myrtle with ample energy to store in the ground during its dormant growth phases. By supplying extra nutrients during the fall planting process or late spring, you can help the myrtle hold more energy to utilize when active growth resumes.
When should I put fertilizer on my Chilean myrtle?
To ensure effective fertilization of Chilean myrtle, it is important to time it correctly. Applying fertilizer too early, while the plant is still dormant, is not beneficial as it will be wasted and washed away by rainwater, causing pollution. The best time for the first application of fertilizer is early spring, followed by monthly fertilization until early summer.
When is the best time to not add fertilizer to my Chilean myrtle?
To ensure optimal growth of Chilean myrtle, it is important to be mindful of the type of fertilizer used. Excessive nitrogen content can result in an abundance of leaves but few blooms. Therefore, it is advisable to select a fertilizer with a lower nitrogen level compared to other nutrients. Timing is also crucial when fertilizing this plant. It is recommended to avoid fertilizing Chilean myrtle after early autumn, as this can lead to excessive growth just before the winter months. Additionally, during hot and dry periods, fertilizer application should be avoided. Dry soil tends to be less effective in delivering nutrients, and stimulating growth during these times may require more water than is available. It is best to apply fertilizer during earlier parts of the season when temperatures are cooler. Lastly, it is important to be careful with nearby plants or lawns that have received fertilizer. Chilean myrtle can inadvertently absorb the excess nutrients, potentially resulting in a double dosage. Being cautious in this regard will help prevent any issues.
🪴 Pot & Repot 2-3 years
Repot your Chilean myrtle every 2 to 3 years, preferably in early spring. Use a container that is one size larger and offers good drainage. After repotting, ensure the plant has consistent moisture and keep it out of direct sunlight for a week to help it recover.
✂️ Pruning
The Chilean myrtle is characterized by its peeling, cinnamon-colored bark and aromatic leaves. To maintain its health and appearance, it is best to prune the plant from early to late winter. During this time, remove any dead wood and thin out the branches to improve air circulation. Light shaping can also encourage better growth and flowering. Be sure to use clean, sharp tools and avoid heavy pruning to prevent stressing the plant.
🌿 Propagating
🐛 Diseases & pets
☠️ Toxicity
Characteristics
- Plant Type
- Tree
- Life Cycle
- Perennial
- Genus
- Luma
- Family
- Myrtaceae
- Hardiness Zone
- 8-11
- Mature Height
- 10.06 m to 20.12 m
- Mature Spread
- 3.96 m
- Leaf Color
- Green
- Leaf Type
- Evergreen
- Flower Color
- White
- Flower Size
- 1.27 cm
- Bloom Time
- Summer
- Planting Time
- Spring, Autumn
- Harvest Time
- Late summer, Early fall, Mid fall