There are plants that not only decorate homes, but also transmit a unique energy thanks to the beauty of their leaves and the exotic touch they provide. Among them, the Calathea Undulata It has become a favorite for those looking for an elegant and distinctive houseplant. Its tropical appearance, combined with those unmistakable natural undulations in its leaves, make the Calathea a highly appreciated botanical jewel, although not without challenges in terms of daily care.
If you've just acquired a Calathea Undulata, or are thinking about filling your space with that jungle feel its foliage exudes, you're likely to have hundreds of questions: Is it really complicated to maintain? What does it need to always look dazzling? Why do its leaves sometimes seem to lose vitality or unexpected spots appear? In this article, you'll find out. practical advice and all the information you need to become a true expert in caring for this wonderful plant and enjoy its natural waves and movements for years.
Origin and main characteristics of Calathea Undulata
La Calathea Undulata It shares family with other species of calatheas, belonging to the group of Marantaceae. It is native to tropical areas of Brazil and other regions of South America, where it thrives in the shade and humidity characteristic of the rainforest. This plant is distinguished by its spectacular foliage, with elongated, wavy leaves often adorned with silver or deep green patterns. Each variety of calathea has unique designs and colors, although they all share the exotic appeal that has made them so in demand as indoor plants.
One of the most striking peculiarities of the Calathea is its behavior known as nytinastiaThe leaves fold and close at night, as if the plant were sleeping, and reopen with daylight. This movement, besides being unusual, increases its ornamental value and its reputation as a "living plant."
In terms of size, Calathea Undulata typically grows no taller than 40 to 100 cm, depending on the variety and care received. Its leaves, in addition to their pronounced waves, have purple or reddish undersides, adding even more color and vibrancy to any room.
Another point in its favor is that it is a non-toxic plant, suitable for homes with pets and childrenSo, if you're looking to create a safe environment, Calathea is a safe bet.
Calathea Undulata: a demanding but grateful plant
Many plant enthusiasts agree that calatheas, including the Undulata type, are not houseplants. "Easy". Their jungle origin makes them somewhat more demanding with the environment they need to shine in all their splendor. Even so, knowing their basic needs of light, water and humidity, anyone can keep their Calathea healthy and attractive for a long time.
The keys are the observation and perseveranceThe plant's undulations and movements will alert you to possible changes in its condition, so learning to interpret its signals is essential.
The most important thing is to recreate the conditions of the tropical rainforest as much as possible: Shade, humidity, mild temperatures and a draft-free atmosphere.
Light Requirements for Calathea Undulata
One of the secrets to success with Calathea Undulata is finding the perfect spot indoors. This plant loves indirect light and grows ideally in spaces where light is abundant, as long as it does not receive direct sunlight. Intense sun can burn and discolor its leaves, causing them to lose their vibrant patterns and the typical ripples to look dull.
If you observe leaves yellow or pale, the plant is probably receiving too much light. It's recommended to place it near a window filtered by a translucent curtain or, if possible, in an area with natural light, without direct exposure. It's also helpful to rotate the pot periodically so that all leaves receive light evenly, avoiding unbalanced growth.
Temperature and humidity: the perfect climate for your Calathea
Calatheas are plants that They hate the cold and draftsThey are sensitive to abrupt temperature changes and it is ideal to keep them in a stable environment, between 18 ° C and 25 ° C. Below 15°C, the plant may suffer damage, slow its growth, or show visible signs of deterioration. Keeping it away from doors, open windows in winter, or near heaters is essential to avoid unpleasant surprises.
With regards to humidity, Calathea Undulata appreciates high levels, similar to those of its natural environment. A dry environment can cause the edges of the leaves turn brown or wrinkle, losing their characteristic vitality. If you live in a dry climate or spend a lot of time with the heating on, it's best to use a humidifier near the plant, or place the pot on a saucer with stones and water, ensuring that the base never comes into direct contact with the water. You can also mist the leaves frequently. preferably with filtered or rainwater to avoid whitish marks.
Proper Watering for Calathea Undulata: Finding the Balance
Watering is one of the most delicate aspects of Calathea care. Its substrate should be always slightly moist but never waterlogged. Excess water is as harmful as dryness: too much moisture can cause yellow spots, root rot and leaf drop, while a lack of water will cause the leaves to become wilted and dry out quickly.
Watering frequency depends on the season and the level of humidity. In the warmer months, it's normal to water two to three times a week, always checking the soil moisture. with the finger. The substrate should not be allowed to dry out completely between waterings. When winter arrives, reduce watering, keeping the substrate barely moist and adjusting it to the plant's activity.
A fundamental trick is avoid tap water with chlorine or mineral salts, since Calathea is especially sensitive to these components. Opt for water filtered, distilled or rainwater to prolong the health of its leaves. If you only have running water, let it sit for 24 hours before using it.
Fertilization and type of substrate
Like any foliage plant, Calathea Undulata appreciates fertilizer. rich in nitrogen which favors the formation of new leaves and reinforces the colors and waves.
During the growing season (spring and summer), add diluted liquid fertilizer every two weeks. It is not necessary or recommended to fertilize during the fall or winter, as excess nutrients can damage the roots and cause toxicity on the floor.
As for the substrate, look for an organic, acidic, and well-draining mix. A base with one-third of peat, perlite and worm humus It is ideal for retaining sufficient moisture without the risk of waterlogging.
Transplanting and propagating Calathea Undulata
Calatheas do not require frequent repotting, as they its growth is slowYou will know that your plant needs a larger pot when you notice that the roots protrude through the drainage holes or the development of new leaves seems to slow down. Choose a pot 15% larger than the previous one and always use top quality land to ensure your health and avoid stressful situations.
Propagation is best done in spring or summer. Remove the parent plant carefully and separate the rhizomes with at least two developed leaves Each one. Use sterilized scissors to avoid infection. Plant each division in a new pot, using the same potting soil, and water gently. The new specimens may appear limp at first, but they will recover if you maintain the proper humidity and temperature.
Common problems: leaf curl, spots, and pests
Calathea Undulata communicates a lot through its leaves. If you notice that it roll or fold outside of normal hours, is a sign that something is not right. It may be due to lack of irrigation, dry air, excessive heat, even at a over fertilization or rotten roots. It's essential to check the condition of the soil, the humidity, and exposure to heat or cold sources.
Brown spots are usually caused by low humidity or irrigation with inadequate waterYellow spots, on the other hand, are a symptom of excess water or poor drainage. It's important to remove severely damaged leaves to prevent them from compromising the health of the entire plant.
As for pests, spider mites and mealybugs are the most common enemies. Check it frequently, especially the underside of leaves and stems. If you notice tiny cobwebs or whitish spots, use a ecological insecticide or potassium soapKeeping a calathea in good condition, with fresh air, humidity, and no stress, greatly reduces the likelihood of pests.
Curiosities and benefits of Calathea Undulata at home
In addition to its undeniable decorative value, Calathea Undulata offers additional benefits in the home. Its ability to purify the air This makes it an ally against common pollutants such as formaldehyde and benzene, helping to create a healthier environment in closed spaces.
Another interesting fact is the traditional use of calathea leaves in their countries of origin. Being strong and broad, they are often used to wrap food or make braids and baskets. However, the most fascinating aspect remains their daily movement, which brings dynamism, color and life to any room.
The Calathea, in addition, is a plant pet friendly. It doesn't pose a danger to pets or children at home, so you can live peacefully with curious dogs or cats without worrying about accidental poisoning.
Popular Calathea Varieties and How to Tell Them Apart
The genus Calathea includes More than 25 species, although Undulata is one of the most appreciated for its undulations. Other famous varieties are Calathea Lancifolia, whose peculiar pattern of dark ovals on a bright green background and long wavy leaves make it stand out, or Calathea Orbifolia, with broad leaves with silver stripesThe Calathea Medallion fascinates with its green and silver colors on top, and purple on the back, closing its leaves at night.
Calathea Roseopicta adds a purple line over the dark green. They all share a preference for indirect light, humidity and a constantly moist substrate, so the care is practically identical.
A simple trick to identify them is to look at the pattern and color of their leaves, as well as their daily movement.
Additional tips to keep your Calathea Undulata looking perfect
To keep your Calathea Undulata looking its best, consider these additional tips:
- regular cleaning: Wipe the leaves with a damp cloth from time to time to remove dust and allow them to “breathe” better.
- Do not over-wet the leaves: Spray them if the environment is dry, but avoid allowing water to accumulate in the armpits or at the base of the stem.
- Avoid sudden changes: Calatheas hate moving constantly. Find the ideal spot and keep it there as long as possible.
- Monitor growth: If the plant stagnates, check the root system and consider repotting.
With a little love and care, your Calathea Undulata will not only look healthy, but will also add a touch of exotic nature to any space, enjoying its waves and movement day after day.