Montanoa hibiscifolia — an easy houseplant, prefers full sun light
SPECIMEN · FROM THE LIBRARY
Montanoa hibiscifolia

Montanoa Hibiscifolia

Updated · 154 observations
ON THIS PLANT

Montanoa hibiscifolia, the tree daisy or Anzac-flower, is a species of flowering plant in the family Asteraceae. It is native to Central America and southern Mexico, and it has been introduced to other locations including South Africa and Australia. An erect tree-like perennial reaching 6 m (20 ft), it is invasive, capable of forming dense stands.

A note from PlantMom

Treedaisy resists disease well and is usually not susceptible to illnesses. With regard to care, this plant is fairly low-maintenance. When grown outdoors it needs only light watering, and larger specimens typically do not require pruning. Smaller plants, however, should be pruned after they have finished blooming. Treedaisyt is appropriate for anyone who has an outdoor area, such as a garden or a deck, and it does not demand much prior care experience.

— PlantMom
CARE GUIDE

How to keep Montanoa Hibiscifolia.

Light

Treedaisy is native to open habitats, including sunlit meadows and forest margins, which provide abundant light. It does best in Full Sun but can tolerate Partial Sun, adapting well to a range of sunlight conditions.

Water

Treedaisy is well-suited for mountainous areas where rainfall is infrequent and conditions are typically dry. It thrives on a balance of moderate moisture, needing watering every 2-3 weeks. As an outdoor plant, it takes advantage of seasonal rain patterns, requiring less irrigation during the wet season while benefiting from the natural rainfall.

Temperature

Treedaisy originates from temperate regions, where temperatures typically lie between 59 and 95°F (15 to 35℃). Since it favors this moderate temperature band, temperatures must be adjusted carefully during harsh seasons.

Fertilizer

Proper timing matters when fertilizing Treedaisy. Apply fertilizer in early spring and continue at monthly intervals until early summer. The fertilizer promotes attractive blooms and supplies energy both during dormant periods and active growth.

Pruning

Treedaisy is known for its tall, bushy structure adorned with daisy-like flowers. To maintain its health and appearance, prune it in early spring by cutting back up to one-third of the plant. This encourages better air circulation and helps prevent disease. Regular pruning also promotes flowering and enhances the plant's vigor, ensuring a healthy and attractive presence in your garden.

CHARACTERISTICS

Botanical profile.

Plant Type
Tree, Shrub
Life Cycle
Perennial
Genus
Montanoa
Family
Asteraceae
Hardiness Zone
7-9
Mature Height
2.13 m to 4.88 m
Mature Spread
1.52 m to 3.05 m
Leaf Color
Green, Dark Green
Leaf Type
Deciduous
Flower Color
White
Flower Size
4.06 cm
Bloom Time
Mid fall, Late fall, Early winter, Mid winter
Planting Time
Summer
Harvest Time
Winter, Early spring
Native Area
Honduras, Mexico, Guatemala, El Salvador, Nicaragua, Costa Rica, Panama
ALSO KNOWN AS

Other names.

en Anzac-flower en Tree daisy en Bush daisy en Montanoa en Mexican tree daisy en Mallow-leaf Montanoa
FREQUENTLY ASKED

Reader questions.

What's the easiest way to water my Treedaisy?

To promote excellent root development, consider placing a garden hose at the base of the plant. Avoid spraying the leaves directly and note that outdoor plants in direct sunlight may need more water for their leaves. To moisten the roots, bubblers can be used for each plant. Soaker hoses are also effective for watering the entire garden or bed, especially when adding or removing plants. Remember to drain excess water and wait for the soil to dry before watering again. Watering at ground level can help prevent diseases. On sunny days, consider spraying the entire bush with water. Whether potted or in-ground, keep in mind that Treedaisy prefers deep watering rather than light sprinkling.

What are the sunlight requirements for Treedaisy?

Treedaisy, or Montanoa hibiscifolia, thrives best in full sun conditions, which means it requires more than 6 hours of direct sunlight daily. It can also adapt to partial sun, needing about 3-6 hours of sunlight. This flexibility allows it to grow in a variety of sunlight conditions, making it suitable for planting in open spaces like sunny meadows and forest edges. It's important to observe the movement of sunlight through your garden to ensure that you choose locations that provide the right balance of light and shade, ensuring the happiness and health of your plants.

What is the native temperature range for Treedaisy, and how should it be cared for during harsh seasons?

Treedaisy, botanically known as Montanoa hibiscifolia, thrives in temperate zones where temperatures usually range from 59 to 95°F (15 to 35°C). Despite its strong cold resistance, it's crucial to adjust temperatures carefully during severe seasons. While special frost protection isn't typically necessary, winters with temperatures dropping below -15°C require cold protection measures like wrapping the trunk and branches with non-woven fabric or cloth. It's also recommended to water the plant abundantly before the first freeze in autumn, ensuring the soil remains moist and enters a frozen state, which helps prevent drought and water scarcity during winter and early spring.

What should I do if I give too much or too little water to Treedaisy?

Overwatering can cause a Treedaisy to have yellow leaves that drop off and wilt. The plant may also appear dull and unhealthy with mushy stems. If these signs appear, adjust your watering schedule. On the other hand, wilting can also indicate under watering. In this case, the leaves will become crispy and dry. If the soil is dry and watering alone is not enough, give the plant a thorough watering. However, even with enough water, the Treedaisy may still have dry and yellow leaves due to root damage. Once the plant recovers, the yellowing will stop. When keeping the Treedaisy indoors, always check the moisture levels to avoid overwatering. Look out for black spots, and if present, allow the soil to dry out 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 excessively soggy soil. When planting the Treedaisy outdoors, ensure that the soil is adequately watered. If the soil feels too dry, it may indicate under watering, so water the plant appropriately to help it recover.

How can I use artificial lighting for Treedaisy indoors?

When natural sunlight is insufficient for your Treedaisy, especially during winter or in less sunlit spaces, artificial lighting can be a vital solution for optimal growth. LED lights are recommended due to their efficiency and ability to provide specific wavelengths needed by plants. For full sun plants like Treedaisy, 30-50W per square foot is appropriate, positioned 12-36 inches above the plant to mimic natural light conditions. Ensure the light duration mirrors the natural daylight hours required by your plant species, typically between 8-12 hours per day.

What are the symptoms of Treedaisy in low temperatures and the recommended solutions?

Treedaisy is cold-tolerant and performs best when temperatures stay above 15°C. In winter, it's essential to keep it above -10°C. If temperatures fall below -15°C, the branches may not show immediate changes, but they could become brittle, dry out in spring, and fail to produce new shoots. The recommended solution for this condition is to prune away any dead branches that haven't produced new leaves come spring.

How frequently should I water my Treedaisy plant?

To properly care for Treedaisy plants, it is important to provide deep and infrequent watering. When watering potted plants, it is especially important to soak them with a gallon of water each time, as the limited water storage in pots causes the soil to dry out quickly. In cold regions, watering should be done every 3 to 5 days. It is best to water the plants early in the morning when the soil is dry, both indoors and outdoors. You can check the soil moisture by examining the top 2-3 inches of soil - if it is dry, the plant needs a good watering. On hot days, it is advisable to check the soil moisture daily, as the heat can rapidly dry out the soil in pots. If you have a garden, irrigation of the soil is necessary. In hot climates, watering once a week is recommended, but be sure to only water when about 2 to 3 inches of soil become too dry, both indoors and outdoors. Take into consideration the amount of rainfall the plants receive and avoid overwatering to prevent root rot. Treedaisy plants typically thrive in spring and fall. For outdoor plants, adding a layer of mulch 3 to 4 inches deep can help conserve moisture. Sandy soil requires more frequent watering due to its fast drainage, while clay soil requires less frequent watering to avoid root rot - allowing the plant to dry for 2-3 days is appropriate. Keeping track of watering dates on a calendar can help ensure plants are watered on time, and if the leaves start to droop, it may indicate that watering is needed.

What are the symptoms of light deficiency in Treedaisy?

Symptoms of light deficiency in Treedaisy include smaller new leaves, indicating a struggle in resource allocation. The plant may exhibit leggy or sparse growth, with longer spaces between leaves or stems, leading to a weak appearance. It might experience faster leaf drop as it conserves resources, and growth could slow or stop due to survival mode. Light deficiency can also cause lighter colored new leaves, or even chlorosis, where leaves lose their green color. Conversely, excessive sunlight can cause symptoms like sunscald, leaf curling, wilting, and leaf scorching, reflecting the need for balanced light exposure.

How does Treedaisy respond to high temperatures, and what care does it need?

During summer, it's crucial to keep Treedaisy's temperature below 35°C. Exceeding 38°C can cause its leaves to lighten in color, dry out at the tips, and the plant becomes more susceptible to sunburn. To care for it under these conditions, trim away the sunburned and dried parts of the plant. Move the plant to a shaded location or use a shade cloth to protect it from the midday and afternoon sun. Additionally, water the plant in the morning and evening to maintain soil moisture and mitigate the effects of high temperatures.

How much water should I give to my Treedaisy?

The Treedaisy has specific watering needs. For potted plants, water them deeply until the water drips out the bottom of the pot, then wait for the soil to dry before watering again. To measure how much water you've given in a week, you can use a water calculator or a moisture meter. During the flowering period, provide plenty of water but allow the moisture to evaporate to prevent root rot. If the Treedaisy is planted outside and it rains enough, you may not need to water it. However, when the Treedaisy is young or newly planted, make sure it gets 1-2 inches of rain per week. As it grows, it can rely on rainfall alone. Only water it fully during hot weather or if there is no rain for 2-3 weeks. Watering during cooler times of the day will prevent the plant from suffering from heat damage. Additional watering may be needed during long dry spells.

How can I address Treedaisy's light needs both indoors and outdoors?

To optimize Treedaisy's growth indoors, gradually shift plants to sunnier spots to achieve at least 6 hours of direct sunlight per day, utilizing south-facing windows for natural light or artificial plant grow lights as necessary. For outdoor plants, similarly transition them to sunlit areas, avoiding sudden light intensity changes to prevent sunburn. Additionally, for plants grounded outdoors, consider reducing obstructions by pruning or relocating smaller plants to well-lit areas with ample sunlight and good drainage, to ensure their healthy development.

Should I water my Treedaisy more or less depending on the time of year or the weather?

The Treedaisy is an outdoor plant that needs rain to thrive. During spring and fall, keep the soil consistently moist but not overly wet. Alternating between dry and moist soil conditions is best for its growth. In hot summer weather, water may evaporate quickly and additional watering may be required if there is a lack of rainfall. However, during winter, the Treedaisy needs less water as it drops its leaves and goes dormant. Use well-draining soil like terracotta to help water evaporate faster. Once the Treedaisy leafs out in spring and goes dormant, no watering is necessary as it can rely on fall and winter rains. Good drainage is important at all times, especially during winter, to avoid ponding and ensure the plant's health. If the Treedaisy is in a pot, it has limited root growth, so water it well, particularly during summer months. Avoid shallow sprinkling that only reaches the leaves, as it encourages fungi growth and doesn't reach the roots effectively. Even during dormancy, don't let the Treedaisy dry out completely in fall or winter. Avoid overwatering too, as it dislikes sitting in water for extended periods, which can cause death during winter. Applying mulch can help reduce stress, conserve water, and promote healthy blooms.

PLATES
Montanoa hibiscifolia leaf
PLATE 01 · leaf
Montanoa hibiscifolia leaf
PLATE 02 · leaf
Montanoa hibiscifolia flower
PLATE 03 · flower
Montanoa hibiscifolia flower
PLATE 04 · flower
Montanoa hibiscifolia fruit
PLATE 05 · fruit
Montanoa hibiscifolia fruit
PLATE 06 · fruit
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