How to Grow and Care for Monstera Obliqua Plant (Window-Leaf Monstera)

Written by Ivy

Jan 05 2023

How to Grow and Care for Monstera Obliqua Plant (Window-Leaf Monstera)
Monstera Obliqua plant (Window-Leaf Monstera) is an excellent ornamental plant. Monstera obliqua plant has rich leaves, slender stem nodes and dark green. It has many branches on the stem and oval leaves. Monstera obliqua plant can be evergreen all year round and has strong shade resistance. It is named after many small holes on the back of its leaves.

Monstera Obliqua Plant Quick Info

Botanical/Scientific Name Monstera Obliqua
Common Name Window-Leaf Monstera
When to Grow/Bloom/Harvest Growing season of spring and the start of the summer
Uses Stem-cuttings
Origin Central and South America
Light Care Bright natural light
Soil Care Well-draining peat-based potting
Temperature Care Between 16°C  and 20°C
Humidity Care High humidity levels of up to 90%
Watering Be watered once or twice a week
Pruning Care Be pruned regularly
Fertilizer Care Once a month using a mild fertilizer
Propagation Cuttings
Toxic Toxic to Dogs or Cats
Flower Color Rose-purple, white, pink
How to Grow and Care for Monstera Obliqua Plant

When to Plant Monstera Obliqua Plant

We'd better choose to plant the monstera obliqua plant when the weather is warmer. The relatively warm environment of the monstera obliqua plant. The wintering temperature in winter is about 10 degrees, below 6 degrees will cause freezing injury, and 15 degrees to 30 degrees is the appropriate temperature for growth.

When does Monstera Obliqua Plant Bloom & Harvest

The Monstera obliqua plant will bloom. Although Phyllostachys pubescens is a foliage plant, it can also bloom, but flowering is very rare and the probability is very small. Sometimes it takes many years to bloom. The flowering period of Monstera obliqua plant is from August to September every year. The flowers belong to Buddha flame inflorescences with large flower buds. The flower buds are wrapped with flower spikes. The flower color is yellow and white. It looks fresh and elegant, which is a rare good omen.Monstera Obliqua Plant Care in Detail.

Monstera Obliqua Plant Watering

We should provide a slightly wet environment for monstera obliqua plant during propagation, and the amount and times of watering should be adjusted appropriately according to the climate. Watering should be carried out slowly, not violently. The temperature in early spring is not very high. It needs to be watered once every 2-3 days. It can be watered every day at the end of spring. The water demand in summer is relatively large, and it is best to water once in the morning and once in the evening.
In different seasons, the amount of water required by monstera obliqua plant is also different. If it is not watered for more than a week during the growth period, it will have bad performance. If it is not watered for a continuous month, monstera obliqua plant may die. However, it is different in cold winter. It can be watered once a week according to the situation, but it can't be too dry.

Monstera Obliqua Plant Soil

Monstera obliqua plant likes to grow in loose, breathable and well drained soil. Its root system is fleshy, so in the process of its growth, the root system needs sufficient oxygen intervention to grow better. We can prepare it with garden soil + coarse sand + rotten leaf soil in the ratio of 1:1:1. Small stones can be added at the bottom of the flowerpot when loading the flowerpot, so as to improve the water permeability of the monstera obliqua plant flowerpot without ponding.

Monstera Obliqua Plant Light

Monstera obliqua plant can't be exposed to the strong sun, that is to say, once the sun is strong, it can't be exposed to the sun. However, this does not mean that Monstera obliqua plant does not need sunlight, because sunlight can not only help the leaves of Phyllostachys pubescens color and make the leaves green, but also promote growth and enhance the plant's ability to resist diseases. Like this early spring season, many places are still cold and the sun is not fierce. The monstera obliqua plant should be exposed to more sun. Therefore, the monstera obliqua plant can be maintained in a scattered light environment. For family maintenance, it can be placed near the indoor windowsill without exposure to direct light.

Monstera Obliqua Plant Temperature

Monstera obliqua plant grows vigorously in summer. The most suitable temperature for growth is 20 ℃ to 35 ℃. If the temperature is often lower than 10 ℃, the growth will be hindered.
When the temperature is lower than 8 ℃ in winter, the growth of monstera obliqua plant will be seriously affected. If the thermal insulation measures are not taken in time, the plant will be frostbitten. After winter, the temperature will gradually drop. It is recommended to take corresponding thermal insulation measures in advance, and it is best to keep the ambient temperature at about 15 ℃.
When we water the monstera obliqua plant in winter, we must pay attention to the temperature of the water. We can't take water directly for irrigation, otherwise it will cause serious frostbite. We can put the water for about two days before irrigation to ensure that the water temperature is in balance with the ambient temperature. In addition, when we water the monstera obliqua plant in winter, it is recommended to do it when the temperature rises at noon, so that it can be better suitable.
How to Grow and Care for Monstera Obliqua Plant

Monstera Obliqua Plant Humidity

Monstera obliqua plant likes a humid environment, but that doesn't mean it can be flooded, so it's OK to water it thoroughly. Don't water it too often, which will lead to flooding and root rot, leading to Monstera obliqua plant lodging or even death. During the growing season, the water demand of monstera obliqua plant increases. It dries quickly at this time. It is generally dry in one day. You need to pay attention to replenishing water in time. In addition, Monstera obliqua plant likes the environment with high air humidity. If the air in your home is dry, we can often spray leaf water on Monstera obliqua plant. It likes the environment with high humidity around the plant. (Read More: Monstera Root Rot - Signs & How to Treat)

Monstera Obliqua Plant Fertilizer

Monstera obliqua plant is a kind of fertilizer loving plant, especially in the growing season. You need to apply fertilizer every half a month from April to September. It is mainly foliage fertilizer and nitrogen fertilizer, because nitrogen element promotes leaf growth. If you don't have a high proportion of nitrogen fertilizer in your family, you can also apply organic fertilizer. The principle of fertilization is thin fertilizer and frequent application, Do not fertilize too much at a time.

Monstera Obliqua Plant Pruning

When propagating monstera obliqua plant, if we find yellow leaves, the diseased leaves should be cut off in time and directly from the base. If the disease is serious, it is recommended to remove the pot and trim the rotten roots to avoid aggravating the disease. Monstera obliqua plant will inevitably grow many side buds during its growth. We should also trim them in time, otherwise it will reduce the ornamental. In addition, we have to trim the branches that are too long and too dense, which can save a lot of nutrients and promote the growth of the remaining branches. (Read More about saving yellow leaves of Monstera.)

Monstera Obliqua Plant Repotting

Due to the rapid growth of monstera obliqua plant, the basin needs to be changed once a year. The basin change time should be between March and April. When we change the basin in monstera obliqua plant repotting, we should remove some old soil and dry roots and replace it with a larger basin. Put some hoof pieces and broken bones at the bottom of the basin as base fertilizer, and fill in the culture soil prepared by mixing 1 / 3 of rotten leaf soil, vegetable garden soil and sandy soil.
Monstera obliqua plant is not resistant to direct sunlight and cold. In midsummer, it should be placed indoors or under the shade, not on the balcony with too strong sunlight, otherwise, it is easy to cause dead leaves and affect the ornamental value. When the temperature drops to 6 ℃ in winter, move indoors to keep warm.
We should keep the basin soil moist after Monstera obliqua plant repotting. Phyllostachys pubescens likes to be wet and needs sufficient water during its growth. Daily watering can be done once a day, once in the morning and once in the evening in summer. When the weather is dry, it is more necessary to spray water on the leaf surface and the maintenance environment to keep the air and bright leaves. Water once every 3-4 days in winter. We can spray the leaves with water close to the room temperature every 7-10 days to keep the plants evergreen and fresh and improve the ornamental value.

Monstera Obliqua Plant Pest & Disease Control

The common disease in monstera obliqua plant is leaf spot, which mainly damages the leaves. It usually begins to erode from the edge of the leaf. In the early stage, there will be some black spots, which will gradually expand into ellipses or spots of unspeakable shape. Especially when the disease is more and more serious, it will make the leaves of monstera obliqua plant yellowing, which may also lead to its leaves falling off and seriously affect its ornamental value. In order to avoid the infection of upper leaf spot on monstera obliqua plant, we usually need to place it in a well ventilated and bright place to reduce the occurrence of the disease. When the disease occurs, we need to spray medicine in time for treatment. Generally speaking, it can be cured in about half a month.
How to Grow and Care for Monstera Obliqua Plant

Monstera Obliqua Plant Propagation

Monstera Obliqua Plant Propagation from Cutting

Monstera obliqua plant propagation from cutting is generally carried out in spring or autumn. First of all, we should choose the lateral branches. Generally, we choose the strong ones born in the same year as the cuttings, preferably 20 to 25cm long. We should remove the leaves at the base of the branch and only keep the upper leaflets. Soil is best mixed with rotten leaf soil, peat or coarse sand. After inserting the cuttings of monstera obliqua plant into the soil, we should pay attention to giving it a suitable environment. For example, the temperature should be controlled within the range of 25 to 27 degrees Celsius, and the humidity should be higher. It will take root in about 30 days.

Monstera Obliqua Plant Propagation from Division

Monstera obliqua plant propagation from division is usually carried out in summer or autumn, which is relatively likely to survive and easy to operate. We can do this when changing the pot, directly remove the whole section of the side branches of the healthy and large plants, pay attention to take part of the air roots, and then plant this part directly in the pot.

Monstera Obliqua Plant Propagation from Seed

As for Monstera Obliqua plant propagation from seed, seeds should be collected first. It usually bears seeds after flowering in summer. When the seeds are not mature, attention should be paid to strengthening management to ensure the healthy and Fruiting of seeds. After the seeds mature, they can be collected. We should choose healthy seeds and soak them in water with appropriate temperature for about 10 hours. The most appropriate water temperature is 40 ℃.
We can disinfect the soil in advance, either with disinfectant or directly exposed to the sun. After that, sow the seeds on the soil, about every 2 to 3 cm.
After sowing in the monstera obliqua plant, we should keep the temperature around the pot in the range of 20 to 25 degrees Celsius. We can lay a layer of film on it to keep the soil moist. The seeds will sprout in less than a month. After it grows leaves, it can be planted separately in different pots.

Monstera Obliqua Plant Benefits

Monstera obliqua plant has the effect of purifying air and absorbing carbon dioxide. Especially at night, monstera obliqua plant will absorb carbon dioxide, purify the air, absorb formaldehyde, benzene and other harmful gases, so as to improve the air. It is a good indoor propagation plant.
Monstera obliqua plant is a good ornamental plant with green leaves all year round. The stem is very strong, and the flowering period is from August to September. It is a large indoor green ornamental plant.
Monstera obliqua plant has a very peculiar flower. The flower bud like the bottom of a ship is yellow and white. The flower is as big as a palm. It contains meat and can bear fruit. Its fruit is berries. The flowers and fruits of Monstera obliqua plant are edible, and the fleshy inflorescences are fresh, tender and juicy. They can be used as vegetables in many places, and the taste is cool and delicious.
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