Kallstroemia maxima — a medium houseplant, prefers full sun light
SPECIMEN · FROM THE LIBRARY
Kallstroemia maxima

Kallstroemia Maxima

Updated · 37 observations
ON THIS PLANT
A note from PlantMom

Big caltrop has strong disease resistance and is usually not susceptible to diseases. Nevertheless, it can be affected by pests and diseases present in its environment. Such infections are generally mild. Regarding care, this plant needs medium maintenance. It should be pruned regularly to retain a tidy appearance and encourage healthy growth. Applying fertilizer can also help stimulate flowering. Big caltrop is well suited for anyone with an outdoor area, like a garden or patio, and does not demand extensive care experience. It may need more attention when cultivated indoors.

— PlantMom
CARE GUIDE

How to keep Kallstroemia Maxima.

Light

Big caltrop grows best when it receives continuous sunlight during the day, though it can tolerate a combination of sun and shade. Originating in habitats with abundant sun exposure, the plant has adapted to cope with somewhat shaded conditions. Excessive sun can cause wilting, while too much shade can restrict growth.

Water

The big caltrop is well-suited to arid environments because it needs very little water and prefers dry climates. For optimal health, it should be watered once a week. Its drought-resistant qualities make it ideal for growing outdoors, as it can take advantage of natural rainfall and adapts well to variations in precipitation.

Temperature

Big caltrop comes from tropical areas, where the weather is generally warm and humid. Consequently, it is well adapted to high temperatures and moisture. It does not tolerate sudden temperature changes and prefers a steady temperature, so avoiding temperature fluctuations indoors is important. It usually cannot withstand cold and needs higher temperatures to grow. If the ambient temperature falls too low, the plant may stop growing or even die.

Fertilizer

Big caltrop responds well to frequent, light applications of fertilizer to encourage healthy leaf growth. Fertilize Big caltrop about once a month during the summer. Nitrogen is essential for foliage, and supplementing with nitrogen-rich sources helps Big caltrop thrive.

Pruning

To ensure optimal growth, it's important to prune big caltrop between early and late spring. This allows for new growth before the summer heat sets in. Concentrate on removing dead branches, thinning the plant to improve air circulation, and maintaining its size. Regular pruning not only stimulates bloom production but also promotes overall plant health for a more vibrant appearance.

CHARACTERISTICS

Botanical profile.

Plant Type
Herb
Life Cycle
Annual
Genus
Kallstroemia
Family
Zygophyllaceae
Hardiness Zone
9-11
Mature Height
30 cm to 61 cm
Mature Spread
30 cm to 91 cm
Leaf Color
Green
Leaf Type
Deciduous
Flower Color
Yellow
Flower Size
2.54 cm
Bloom Time
All year round
Planting Time
Summer, Autumn
Harvest Time
All year round
Native Area
Belize, Honduras, Mexico, Guatemala, Panama, Jamaica, Colombia, Bahamas, Cuba, Bolivia, Venezuela, Brazil, El Salvador, Nicaragua, Costa Rica
ALSO KNOWN AS

Other names.

en Big caltrop en Caltrop en Verdolaga en Big Caltropa
FREQUENTLY ASKED

Reader questions.

How should I water my Big caltrop plant?

To water Big caltrop, there are several options available. You can use a garden hose with a spray nozzle, a watering can, or any other common watering tool. Big caltrop is not too picky about the source of water, as they can thrive on rainwater, tap water, or filtered water. However, it is advisable to avoid watering this plant from overhead, as it can harm the leaves and flowers and potentially lead to disease. Instead, setting up a drip irrigation system is often the best method for watering Big caltrop. These systems ensure that water is evenly and directly applied to the soil. For container-grown Big caltrop, you can follow a similar approach but use a cup, watering can, or tap to directly water the soil.

How many hours of sunlight does Big caltrop need every day to grow well?

To ensure the well-being of the plants, it is important to provide them with a minimum of 6 to 8 hours of sunlight every day. Particularly in the summer, they thrive when exposed to more morning light. The Big caltrop specifically requires ample sunlight to thrive. The more light these species receive, the better they are able to produce food, develop stunning blooms, and ultimately survive.

What should I do if I give my Big caltrop plant too much or too little water?

Underwatering Big caltrop can easily be fixed by watering it more regularly when you notice it lacks moisture. Overwatering, however, can be a serious problem if not caught early. It can lead to diseases that cause the plant to decline and eventually die. To avoid this, choose a spot with lots of sunlight and good drainage to help dry the soil. If your Big caltrop is in a pot and you overwater it, you may need to switch to a new pot with better drainage. When repotting, use loose soil and a pot that drains well.

What kind of sunlight does Big caltrop need?

The Big caltrop thrives in full sunlight, so it is important to avoid overcrowding them to ensure even sun exposure. It is crucial not to deprive the leaves of sunlight. If you choose to plant them in pots, make sure to place the herbaceous flowers in windows that receive direct sun, regardless of the time of year, to ensure they get sufficient sunlight. Avoid placing them in areas with partial or filtered light, as this can result in weak stems and unhealthy flowers. For optimal growth, it is recommended to keep the Big caltrop consistently exposed to sunlight.

How frequent should I water my Big caltrop plant?

To properly care for a Big caltrop, it needs regular watering throughout the growing season. In the spring, aim to water it once a week. As the season progresses and temperatures rise, you may need to increase watering to two or three times per week. However, be careful not to exceed this rate as it can harm the plant. Regardless of watering frequency, make sure the soil remains moist but not overly wet. When watering a Big caltrop in a pot, you'll need to water it more frequently compared to one planted in the ground. Generally, plan to water a potted Big caltrop a few times per week, while an in-ground plant only needs watering once per week. This is because pot soil can dry out faster due to increased heat.

Does sunlight harm plants? How can I shield a Big caltrop from damage caused by the sun and heat?

When the temperature exceeds 90℉ (32℃), the Big caltrop is prone to damage from extreme heat, especially if it is consistently exposed to prolonged sunlight. It is advisable to provide some shade in the afternoon during the summer months. Remember that sunlight is stronger and exposure lasts 50% longer in the summer compared to winter. If the Big caltrop appears stressed from excessive sunlight, ensure they are well-hydrated by watering when the top 2 inches of soil is dry. If it is excessively hot outside and the plant is in a container, consider moving it indoors. It is normal for the plant leaves to wilt during the day, with recovery occurring at night. However, if the Big caltrop continues to droop, it indicates rapid water loss and it is necessary to water them.

How much water does my Big caltrop require?

Determining the appropriate amount of water for your Big caltrop can be done in a few ways. Some gardeners prefer to rely on the feel of the soil to judge moisture levels. This method suggests watering until the top six inches of soil feel moist. Another approach is to use a specific measurement. Typically, it is recommended to give your Big caltrop around two gallons of water per week, depending on temperature and soil dryness. However, following this guideline strictly could result in overwatering if your plant needs less. When growing Big caltrop in a container, a different method is needed. In this case, you should water enough to moisten all dry layers of soil. To check, simply insert your finger into the soil to feel for moisture or water until you see a slight trickle of excess water flowing out of the drainage holes.

Should I keep Big caltrop out of the sun?

The Big caltrop thrives in direct sunlight and is even heliotropic, meaning they move with the sun. To give them the ideal conditions, plant them in south-facing gardens so they receive sun exposure from morning to afternoon. However, it's important to note that while the sun is beneficial, some Big caltrop species may be susceptible to sunburn. To prevent this, you can provide protection from the intense afternoon and midday sun by using the shade of a tree or a wall. It's not advisable to grow Big caltrop in shady areas as the larger flowers require a significant amount of energy to grow and bloom. To achieve the best results, ensure they are placed in an area with full sun and proper lighting conditions.

How can I know if I'm giving enough water to my Big caltrop?

Avoiding overwatering can be somewhat difficult for Big caltrop plants. These plants have deep roots that need weekly soil moistening, but they are also highly prone to root rot and browning when overwatered. While underwatering is less likely to occur, Big caltrop plants can survive for a while without supplemental watering. However, if they are not given water for too long, they may start to wilt and exhibit dry leaves.

What will happen if Big caltrop doesn't get enough sunlight?

When the Big caltrop is not exposed to enough sunlight, or if it is placed in a location with partial sun, the photosynthetic process slows down. This lack of sunlight causes the stems to grow thin and long in an attempt to find more sunlight. As a result, they do not bloom or produce seeds in the shade. In addition, inadequate sunlight can cause the older leaves to die and the color of the new leaves to be lighter than the old ones. The new growth may also be smaller in size. While the Big caltrop thrives in sunny conditions, it can wilt if exposed to excessive heat and ultraviolet light during the hot summer months. It is important to protect them by covering them with a green shade net, especially in summer, to prevent the leaves and flowers from scorching. When kept indoors, you can reduce the heat by using a fan.

How do I water my Big caltrop plants throughout the year?

As the season progresses, you can anticipate that your Big caltrop will require more water. In the spring, watering once a week should suffice. However, when the summer heat arrives, you will likely need to increase the frequency of watering to about three times per week, especially if your Big caltrop is grown in containers. Containers tend to dry out faster than ground soil during warm weather. During the autumn, when your Big caltrop is still in bloom, you may need to decrease the amount of water given as the temperature drops and the sun loses its intensity compared to the summer.

Does the Big caltrop plant require specific sunlight care as it grows?

When growing Big caltrop, it is important to provide them with more light compared to the mature ones. However, younger Big caltrop plants may not be accustomed to sudden exposure to full sunlight, especially if they were grown in a nursery. These younger plants are more sensitive to the intense summer sun, so it is best to gradually and slowly increase their exposure to light.

PLATES
Kallstroemia maxima leaf
PLATE 01 · leaf
Kallstroemia maxima leaf
PLATE 02 · leaf
Kallstroemia maxima flower
PLATE 03 · flower
Kallstroemia maxima flower
PLATE 04 · flower
Kallstroemia maxima habit
PLATE 05 · habit
Kallstroemia maxima habit
PLATE 06 · habit
ALSO IN THE LIBRARY

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