Orthosiphon aristatus
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Orthosiphon aristatus

Cat's-whiskers · Whiskerplant · Java-tea · Cat's moustache · Cat´s whiskers

Tier 1 Difficulty: medium Water: moderate Light: full_sun Toxicity: high
Water every
7 days
Temperature
20–37 °C
Soil pH
6–7
Hardiness
Zone 9–12
Click count
141
Observations
318

Description

Source: leafsnap

Orthosiphon aristatus, commonly known as cat's whiskers or Java tea, is a plant species in the family Lamiaceae (also known Labiatae). The plant is a medicinal herb found mainly throughout southern China, the Indian Subcontinent, South East Asia, and tropical Queensland. It is known as kumis kucing in Indonesia and misai kucing in Malaysia, both of which translate to cat's whiskers. Orthosiphon aristatus is used in landscaping to attract bees, butterflies and hummingbirds to its nectar. VarietiesOrthosiphon aristatus var. aristatus - most of species range Orthosiphon aristatus var. velteri Suddee & A.J.Paton - Vietnam

Care Guide

💧 Water Every week

Cat's whiskers is native to tropical regions, where it thrives in environments with high humidity and consistently moist conditions. To keep its soil adequately moist, it requires weekly watering. When grown outdoors, it especially benefits from rainwater, which supplies essential nutrients and replicates the precipitation of its natural habitat.

Suggested frequency: Every week
FAQ
How should I water my Cat's whiskers in the best way?

To properly water the Cat's whiskers plant, follow these steps for optimal care: 1. Use filtered water at room temperature: Tap water may contain harmful particles, so filtered water is best for this plant's health. 2. Avoid cold water: The Cat's whiskers plant is accustomed to warm environments, so cold water can be shocking. Stick to room temperature or slightly warmer water. 3. Don't water from above: Overhead watering can lead to issues with the foliage. Instead, focus on applying filtered room temperature water directly to the soil. 4. Ensure thorough soaking of the soil: By fully saturating the soil, you benefit the plant's roots. This helps them spread through the soil and absorb the necessary nutrients.

What should I do if I give my cat's whiskers too much water or too little water?

Caring for your Cat's whiskers requires caution when it comes to watering. Both overwatering and underwatering can harm your plant, but overwatering is more commonly an issue. Overwatering can cause wilting, yellowing leaves, and potentially fatal diseases like root rot, mold, and mildew. While underwatering is less common, it can make the leaves dry and brown. It's important to recognize the signs of overwatering early to prevent irreversible damage. Reduce watering if you notice signs of overwatering and consider the soil's drainage quality. If the soil drains poorly, replace it with a loose, well-draining potting mix. If your Cat's whiskers lacks water, simply increase the frequency of watering until the signs improve.

How many times do I need to water my Cat's whiskers?

If your Cat's whiskers plant is in a pot, the most precise way to determine if it needs water is to stick your finger into the soil. If the top two to three inches of soil are dry, it's time to water it. If you have your Cat's whiskers plant outdoors in the ground, you can use a similar method to check the soil. Again, if the top few inches of soil are dry, it's time to water it. In the spring and early fall, you'll typically need to water the plant about once a week using this method. When it's extremely hot, you might need to water it twice or more per week. However, mature and well-established Cat's whiskers plants can usually withstand drought well.

How much water do my Cat's whiskers need?

To properly water your Cat's whiskers, don't hold back on the amount of water you use. Make sure the top two to three inches of soil are dry and then give the plant a deep watering. Water it enough so that the soil becomes completely soaked. You'll know you've added enough water if it drains out of the pot through the drainage holes. If you don't see any excess water draining, it means you haven't watered enough. However, be careful not to let water accumulate in the soil as it can harm the plant. Additionally, if water doesn't drain properly from the pot, it might indicate that the soil doesn't drain well, which is not good for the plant's health. If the plant is outside, one inch of rain per week should be adequate.

How should I give my cat's whiskers water as they grow?

The water needs of the Cat's whiskers can vary depending on different growth stages. For instance, when the plant is in its early years or has just been transplanted, it will require more water than usual. During these stages, the plant puts a lot of energy into growing new roots to support its future growth. To help these roots thrive, they need a bit more moisture. After a few seasons, however, the Cat's whiskers will need less water overall. Another growth stage that requires more water is during the bloom period when the plant is developing flowers. The process of flower development requires a significant amount of moisture, so it may be necessary to provide additional water during this time.

☀️ Light Full sun

Cat's whiskers does best with plenty of sunlight but can tolerate partial shade. During its growth stages, ample light encourages vigorous development and flowering. Native to sunny habitats, too little light can impede growth, while too much exposure can scorch the leaves.

Ideal: Full sun
FAQ
What are the sunlight requirements for Cat's whiskers?

Cat's whiskers thrives in full sun, requiring more than 6 hours of sunlight daily. However, it can also grow in partial sun, with about 3-6 hours of sunlight. It's essential to observe how sunlight moves through your garden to place your plants in spots that offer a good balance of light and shade, ensuring optimal growth and blooming.

How do I care for my Cat's whiskers plant?

Caring for Cat's whiskers involves ensuring it gets ample sunlight while being able to endure semi-shade conditions. Originating from sunny habitats, this plant needs abundant light for vigorous growth and blooming. Artificial lighting can be used to supplement natural sunlight, especially for indoor plants or during less sunny periods. LED lights are recommended, with full sun plants needing 30-50W/sq ft, partial sun plants 20-30W/sq ft, and full shade plants 10-20W/sq ft of artificial light. Position the light source 12-36 inches above the plant and provide 8-12 hours of light per day to mimic natural daylight hours.

What are the symptoms of inadequate lighting in Cat's whiskers?

If your Cat's whiskers is not getting enough light, you may notice small leaves, leggy or sparse growth, faster leaf drop, slower or no new growth, lighter-colored new leaves, symptoms of chlorosis, sunscald, leaf curling, wilting, and leaf scorching. These symptoms indicate that the plant is struggling with light deficiency and needs more sunlight or artificial lighting to thrive.

How can I address light deficiency in my Cat's whiskers plant?

To address light deficiency in Cat's whiskers, gradually increase its exposure to sunlight. For indoor plants, move them to a sunnier spot each week until they receive at least 6 hours of sunlight daily, use a south-facing window, and consider using artificial light sources. For outdoor plants, find the best sunlight spot and move the plant gradually to avoid sunburn. Obstructions like trees that block sunlight may require pruning, and smaller plants might need transplanting to sunnier locations for optimal growth.

🌡️ Temperature 20–37.8°C

Cat's whiskers does best in its native growing environment, where temperatures range from 68 to 100 °F (20 to 38 ℃). The plant prefers warm conditions and may need adjustments during cooler seasons to maintain its health.

Ideal temperature: 20–37.8°C
FAQ
What is the ideal temperature range for Cat's whiskers to thrive?

Cat's whiskers thrives best in its native growth environment, ideally within a temperature range of 68 to 100 °F (20 to 38 °C). This plant prefers warm conditions and may require adjustments in cooler seasons to maintain its health. It's extremely heat-loving, and exposure to cold temperatures can harm the plant. During the autumn, it is advisable to bring outdoor-grown Cat's whiskers indoors, placing them near a bright window but at a certain distance from heaters to avoid damage. Keeping the temperature above 20°C during the winter is beneficial for its growth. Temperatures approaching 0°C or lower are detrimental to the plant.

How should you care for Cat's whiskers in low temperatures?

Cat's whiskers prefers warm temperatures and does not tolerate cold well. It thrives when temperatures are maintained above 20°C and should be kept above 0°C during winter. Exposure to temperatures below -5°C may result in lightening of the leaves, which gradually turn brown or black after frost damage, alongside wilting and drooping symptoms. In such cases, trim off the frost-damaged parts and immediately move the plant indoors to a warmer environment for protection. Positioning the plant near a south-facing window ensures ample sunlight while avoiding placement near heaters or air conditioning vents to prevent the air from becoming too dry.

What should you do if Cat's whiskers experiences high temperatures?

During summer, it's important to ensure that Cat's whiskers is kept below 38°C to prevent heat stress. Should the temperature exceed 43°C, the plant's leaves may lighten in color, increasing susceptibility to sunburn. To mitigate this, trim away the sunburned and dried-up parts of the plant and relocate it to a spot that offers shade from the intense midday and afternoon sun. Additionally, watering the plant in the morning and evening helps keep the soil adequately moist and supports the plant's well-being under high temperature conditions.

💨 Humidity high (>60%)

This plant needs special care because it loves high humidity levels of 60-80% or more. The best way to achieve this is by placing a humidifier near the plant. Daily misting is also essential! Make sure the room has good ventilation.

Humidity: high (>60%)
🪴 Soil 6-7
Soil pH: 6-7
🌱 Fertilizer

Correct fertilization is vital for the health and appearance of Cat's whiskers. Fertilize Cat's whiskers in summer, applying fertilizer monthly throughout the season. Nutrients drive growth and preserve the plant's structures. Fertilization improves Cat's whiskers' flower display, ensuring the best blooms.

FAQ
Why should I put fertilizer on my Cat's whiskers?

Fertilizer and soil nutrients are important for the healthy growth of your Cat's whiskers. Plants, including Cat's whiskers, rely on these nutrients in the soil to develop new plant material and maintain their existing components. Fertilization is particularly crucial for Cat's whiskers to enhance the appearance of its flowers, which are the main attraction of the plant. To ensure the best blooms, most gardeners prioritize fertilization as a reliable method for maximizing the potential of their Cat's whiskers.

When should I put fertilizer on my cat's whiskers?

The Cat's whiskers plant has two main phases throughout the year. The first phase is the dormant phase, which occurs in the winter and results in minimal new growth. The second phase is the active growth phase, happening in spring and fall, when the plant requires more fertilization. In general, it is recommended to start fertilizing the Cat's whiskers in spring and continue once a month until most of the summer. As fall approaches, you can decrease the frequency of fertilization.

When should I not put fertilizer on my cat's whiskers?

To promote the growth of Cat's whiskers, it is important to provide the right nutrients without causing root burn. During the spring and summer, when the plant is actively growing, extra nutrients are beneficial. However, in the fall and winter, when the plant enters its dormancy stage, fertilizing should be stopped.

What kind of fertilizer does the whiskers of my cat need?

For optimal growth of Cat's whiskers, it is recommended to use a fertilizer that has a balanced mix of the three main plant nutrients, with slightly higher levels of phosphorus. Another option is to enhance the soil with organic materials like compost, worm castings, and manure. Fertilizers can take various forms, all of which can be effective for your Cat's whiskers. However, the best choices among fertilizers are typically liquid or powdered. Regardless of the type you choose, remember to dilute the fertilizer and apply it while you water your Cat's whiskers.

How can I make my cat's whiskers healthier?

First, find a suitable fertilizer and learn the ideal fertilization schedule for your Cat's whiskers. Once you have that information, it's time to learn how to apply the fertilizer. The most reliable method is to mix your liquid fertilizer with water before applying it to the soil. Each fertilizer may have different directions on how to feed your plants, so it's best to follow the manufacturer's guidance. These instructions will likely include how to properly dilute the fertilizer to avoid overfertilization. Mixing the fertilizer with water is a simple process, and after it's complete, all you have to do is pour the mixture into the soil where your Cat's whiskers are planted.

🪴 Pot & Repot Every 12 months
Suggested frequency: Every 12 months
✂️ Pruning

Cat's whiskers produce elongated, whisker-like flowers. To keep the plant healthy, prune it between early and late spring. Remove any dead or overcrowded branches to improve air circulation and reduce the risk of disease. Make sure to clean your tools to prevent infections. Regular pruning encourages denser foliage and more vibrant blooms, which in turn promotes the plant's overall health.

🌿 Propagating
🐛 Diseases & pets
☠️ Toxicity

Characteristics

Plant Type
Herb
Life Cycle
Perennial, Annual
Genus
Orthosiphon
Family
Lamiaceae
Hardiness Zone
9-12
Mature Height
1.52 m
Mature Spread
30 cm to 91 cm
Leaf Color
Green
Leaf Type
Semi-evergreen
Flower Color
White, Purple
Flower Size
7.62 cm to 11.43 cm
Bloom Time
Summer, Early fall, Mid fall
Planting Time
Spring, Summer, Autumn, Winter
Harvest Time
Late summer, Fall, Early winter
Native Area
Sri Lanka, India, Malaysia, Indonesia, Cambodia, Vietnam, Myanmar, Philippines, Bangladesh, Laos, Thailand, China

Tags (15)

Common Names (7)

en Cat's-whiskers
en Whiskerplant
en Java-tea
en Cat's moustache
en Cat´s whiskers
en Kumis Kucing
en Balbas-pusa