La Calathea crocata, popularly known as eternal flame plant, is one of the most prized indoor species by gardening and interior design enthusiasts. Its spectacular leaves, dark green on the upper surface and purple on the underside, along with its distinctive orange flowers that emerge above the foliage, make this plant an undisputed centerpiece in any room.
Main characteristics of Calathea crocata
Calathea crocata is part of the Marantaceae family and is native to tropical regions of Brazil. It typically grows to a height of between 50 and 100 cm in optimal indoor conditions. Its leaves are oblong and elliptical, with a velvety texture, with a deep green on the upper side and burgundy or purple tones on the underside. It is highly valued for its floweringUnlike other calatheas, crocata develops intense orange or yellow inflorescences that can last for several weeks.
This species is also notable for its ability to move its leaves in response to light (nyctinasty), opening them during the day and folding them back at night. This property, in addition to its striking foliage, makes it a very dynamic and decorative indoor plant.
Benefits and safety considerations
La Calathea crocata is a Completely safe plant for living with pets and childrenIt contains no toxic compounds in its leaves, flowers, or roots, so you can enjoy its elegant presence without worry in your home with cats, dogs, or children.
Ideal lighting conditions and location
To keep your Calathea crocata in perfect condition, the first fundamental factor is light. It prefers spaces with bright but never direct lightDirect sun exposure can cause scorching, loss of color, and leaf dryness. The ideal location is near a filtered window with translucent curtains, where it receives diffused light for most of the day. This Calathea also tolerates partial shade well and is appreciated in moderately lit rooms, such as offices, living rooms, or well-lit bathrooms.
If you want the plant bloom regularly, it is important not to place it in environments that are too dark, since the lack of light can limit the formation of its characteristic orange flowers.
Ambient temperature and humidity
Given its tropical origin, Calathea crocata needs warm temperaturesThe optimal range is between 16 and 28 ° CIt is essential to protect it from cold drafts and avoid sudden changes in temperature, as it can quickly deteriorate. It does not tolerate temperatures below 10°C, so it should be kept indoors during the winter or in protected spaces in temperate climates.
La humidity is another key factor in its development. This species requires high relative humidity, ideally between 60 and 80%If the air is dry, which is often the case indoors with heating or air conditioning, you should:
- Spray distilled or rainwater on the leaves several times a week.
- Place the pot on a tray with stones and water, ensuring that the bottom of the pot is never submerged.
- Use electric humidifiers in the room where the plant is located.
Avoiding excessive moisture in the substrate is equally important: the plant enjoys a humid environment, but cannot tolerate waterlogging at the roots.
Type of substrate and choice of pot
Calathea crocata requires a loose, aerated substrate with excellent drainage capacityA mixture with these components is recommended:
- 80% quality universal substrate (preferably organic)
- 20% perlite to improve aeration and moisture retention
- A base of clay or gravel at the bottom of the pot to prevent waterlogging
El ideal pH of the substrate should be located between 5.0 and 6.0, a slightly acidic range that promotes nutrient absorption. Avoid using compacted or clay-laden substrates, as these can impair drainage and promote root rot.
Regarding the pot, the best ones are those of shallow but wide, since roots grow more laterally than in depth. If you only have tall pots, you can fill the bottom with gravel or brick chips to adjust the height.
Irrigation: frequency and recommendations
El proper watering This is one of the critical points for success with calatheas, and especially with crocata. This plant needs to have the right substrate always slightly moist, but without puddles. The general guidelines are:
- Water with rainwater, distilled water, or filtered water, as it is very sensitive to the minerals and chemicals present in tap water, which can cause brown spots or edges on its leaves.
- Let the top layer of substrate (about 2 cm) dry before watering again.
- In warm weather, water every 2 or 3 days. In winter, reduce the frequency to once a week or even every 10 days, depending on humidity and temperature.
- Always avoid puddles by emptying the saucer under the pot after each watering.
A clear sign of overwatering is yellowing and leaf drop. Dryness, on the other hand, manifests as leaves curling inward and losing firmness.
Fertilization and fertilization
La Calathea crocata It develops best with a regular subscriber during the growing season (spring and summer). It is sufficient to apply a balanced liquid fertilizer for green plants every two or three weeks, at low doses. You can also opt for Organic fertilizers, such as worm castings in moderate doses. It's important to avoid excess, as salt buildup can damage sensitive roots.
During fall and winter, reduce fertilization to once a month or stop feeding if the plant enters dormancy. Overfeeding can be as detrimental as a lack of nutrients, causing wilting or premature leaf drop.
Calathea crocata flowering
The spectacular flowering of Calathea crocata is one of its greatest attractions. Flowers appear in early spring and can last until the end of summerThe inflorescences emerge above the foliage, displaying orange-yellow bracts that can last for several weeks in perfect condition. The true flowers are small and inconspicuous, protected by the bracts.
To promote flowering, it's crucial to maintain adequate ambient light, high humidity, and a stable temperature. During flowering, you can place a saucer of stones and water under the pot to increase humidity, preventing the bottom from coming into direct contact with water. After flowering, you can cut the spikes from the base so the plant can dedicate its energy to vegetative growth.
Pruning and maintenance
Calathea crocata does not need intensive pruning, but it is advisable remove dry, damaged or yellowed leaves Prune periodically with clean scissors. This prevents potential outbreaks of disease and contributes to better aeration of the foliage. It's not necessary to pinch or guide its growth, as it naturally maintains a compact and tidy shape.
Transplant: when and how to do it
This calathea grows at a moderate rate and only requires repotting when the roots have completely filled the current pot. Repotting should preferably be done in spring, just before the start of its active growth phase. Choose a pot that's only slightly larger and repot with great care, as the roots are fragile. Take advantage of the repotting to check the condition of the roots and remove any damaged parts.
Propagation of Calathea crocata
There are several techniques for propagate Calathea crocata, although the most recommended and effective are the division of the bush and, to a lesser extent, rooting by cuttings:
- Division of the bushThis method is the safest and easiest. Take advantage of the spring transplant to separate the plant into several sections, ensuring each section has healthy roots and at least one bud. Plant each section in its own pot with fresh soil and keep it in a warm, humid environment, avoiding direct sunlight. Water sparingly until you notice new shoots developing.
- CuttingsSelect seedlings with at least two pairs of leaves and cut them with a sterilized knife. You can place them in lime-free water or directly in moist potting soil until they develop roots (they usually take about four weeks in water). Then, transplant them to a pot with a suitable potting soil.
Seed propagation is uncommon indoors, as it's a tedious process and seeds can take a long time to germinate. If you want to try it, use fresh seeds and provide plenty of humidity and constant heat to facilitate germination.
Main problems, pests and diseases
Calathea crocata can be affected by common indoor pests and diseases. Some of the most common problems include:
- Red spider: It appears mainly in dry environments. It is identified by light-colored spots and fine cobwebs on the underside of leaves. It is prevented and controlled by increasing humidity and, if necessary, spraying with potassium soap or neem extract.
- MealybugsThese pests form small cottony masses on stems and leaves. Remove them manually and treat the plant with an indoor insecticide if necessary.
- Root fungus and rot: They occur when the substrate remains too wet. Avoid waterlogging and use well-drained substrate.
- Yellow leaves or dry edges: They usually indicate inadequate watering, low humidity or excessive sun.
It's essential to regularly inspect your plant to detect any signs of pests or diseases early and respond promptly. Maintaining high humidity and avoiding cold drafts are the best preventative measures.
Recommended calathea varieties
The Calathea genus is very broad and includes numerous ornamental species and varieties. Some, in addition to the crocata, are frequently used in interior design for the beauty of their foliage:
- Calathea ornata: Green leaves with pink lines and a purple underside. Very elegant and showy.
- Calathea roseopicta: It has large leaves with pale pink patterns and purple edges.
- Calathea makoyana: Oval foliage with light and dark green patterns, very decorative and resistant.
- Calathea zebrina: It stands out for its light green velvety leaves with dark green stripes.
- Calathea lancifolia: With narrow, wavy leaves with dark green dots.
Most of these varieties share similar needs of lighting, humidity and general care, although some, such as Calathea makoyana, may be a little more resistant to environmental dryness.
Frequently asked questions about Calathea crocata
- Why do leaves curl or turn yellow? This could be due to a lack of humidity, insufficient watering, or exposure to drafts. Increase humidity and adjust watering frequency.
- Is pruning necessary? It does not require regular pruning, only the occasional removal of damaged leaves to preserve its beauty and health.
- How long does Calathea crocata usually last? Under optimal conditions, it can remain healthy and decorative for several years indoors.
- Why isn't my Calathea crocata blooming? The cause is usually a lack of adequate light, insufficient humidity, or nutritional deficiencies. Improve these conditions to promote flowering.
Calathea crocata is a plant that combines elegance and ease of cultivation, as long as its humidity, temperature, and filtered light requirements are respected. Its growth habit, the movement of its leaves, and the intensity of its blooms make it ideal for adding an exotic and vibrant touch to any corner of the home without compromising the safety of children or pets. With regular care and a few tips, you can enjoy a vigorous plant with healthy leaves and showy flowers for a long time.
