Cotula coronopifolia
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Cotula coronopifolia

Brass-buttons · Water cotula · Bachelor's-button · Buttonweed · Waterbuttons

Tier 1 Difficulty: medium Water: low Light: full_sun
Water every
3 days
Temperature
15–35 °C
Soil pH
6–7
Hardiness
Zone 7–9
Click count
119
Observations
463

Description

Source: leafsnap

Cotula coronopifolia, commonly known as brass buttons or buttonweed, is a low-growing perennial plant in the Asteraceae family. Native to Europe, it has spread to other parts of the world, including North America and Australia. This plant features small, yellow, button-like flowers that bloom from spring through summer. Its leaves are finely divided and resemble fern fronds. The stems can be either prostrate or ascending, growing up to 30 cm in length. Cotula coronopifolia thrives in moist soils with full sun or partial shade, although it can tolerate dry conditions once established. It is commonly found in lawns, gardens, pastures, and disturbed areas. Historically, indigenous people have used the plant for medicinal purposes to treat various ailments such as fever, coughs, colds, and skin infections. Overall, Cotula coronopifolia is an attractive ground cover with bright yellow flowers that add color to any landscape. In addition to its aesthetic appeal, its medicinal benefits make it a valuable addition for any garden enthusiast seeking both beauty and functionality.

Care Guide

💧 Water Every 3 days

Common brassbuttons, native to South Africa's moist environments, thrives in conditions with consistent moisture and minimal dry spells. To meet its hydration needs, it requires weekly watering. This plant flourishes outdoors, particularly in wetland areas where a growing season with abundant rainfall satisfies its water-loving nature.

Suggested frequency: Every 3 days
FAQ
How should I water my Common brassbuttons plant?

To ensure the health of the Common brassbuttons plant, it is recommended to water it with filtered water at room temperature. Tap water may contain harmful particles for this plant, so filtered water is preferred. Since the Common brassbuttons is accustomed to warm environments, it is best to avoid using cold water as it can shock the system. Additionally, overhead watering should be avoided as it can lead to foliage problems. Instead, carefully pour your filtered room temperature water directly onto the soil until it is completely soaked. This method benefits the plant by keeping the roots moisturized and enabling them to spread through the soil and collect essential nutrients.

What should I do if I give too much or too little water to my Common brassbuttons?

Overwatering is a more common problem than underwatering for Common brassbuttons. When this plant receives too much water, the stems and leaves may wilt and turn yellow. Overwatering can also lead to diseases like root rot, mold, and mildew, which can be fatal for the plant. However, underwatering is less likely to happen because Common brassbuttons can tolerate drought. If underwatering does occur, the leaves may become brittle and brown. It's important to recognize the signs of overwatering early to prevent irreversible damage. If you notice these signs, reduce your watering schedule and check the soil drainage. If the soil is not draining well, replace it with a loose, well-draining potting mix. In contrast, if your plant shows signs of insufficient water, increase your watering frequency until the signs improve.

How frequently do I need to water my Common brassbuttons?

To determine if your Common brassbuttons plant needs water, you can use a simple method whether it is in a pot or planted in the ground. For potted plants, stick your finger into the soil and if the top two to three inches are dry, it is time to water. The same goes for plants in the ground - when the top few inches of soil have dried out, it is time to water. Typically, during the spring and early fall, watering once a week is sufficient. However, during extremely hot weather, you may need to water two or more times per week. It's worth noting that mature and well-established Common brassbuttons plants have a good tolerance for drought.

How much water does my Common brassbuttons plant need?

To properly water your Common brassbuttons, don't hold back on the amount of water you use. Wait until the top two to three inches of soil are dry and then give the plant a thorough watering. Make sure to water enough so that the soil is completely soaked, and excess water should drain out from the bottom of the pot. If you don't see any excess water draining, it's likely that you haven't watered the plant enough. However, be careful not to let water accumulate in the soil, as this can harm the plant. On the other hand, if water doesn't drain through the pot, it could mean the soil doesn't drain well, which is harmful to the plant's health. If the plant is outdoors, it typically only needs about 1 inch of rain per week.

How do I water my Common brassbuttons as they grow?

The water needs of the Common brassbuttons vary depending on its growth stages. In the early years and after transplanting, it requires more water as it focuses on growing new roots for future growth. These roots perform best with slightly more moisture than during maturity. As the plant matures, it will need less water. Additionally, during the bloom period, the Common brassbuttons may require additional water due to the significant moisture required for flower development.

☀️ Light Full sun

Common brassbuttons favors intense light at all stages of growth for healthy development, since it comes from habitats with unobstructed sunlight. Insufficient light can impede its growth, while very strong sun exposure does not harm it.

Ideal: Full sun
FAQ
What are the sunlight requirements for Common Brassbuttons?

Common Brassbuttons requires full sun exposure, meaning it needs above 6 hours of sunlight daily to thrive. Partial sun, about 3-6 hours of sunlight, is also acceptable but may not promote optimal growth. It's important to observe how sunlight moves through your garden to find spots that offer the right balance of light and shade, ensuring the plant's happiness and health.

How does sunlight affect the growth of Common Brassbuttons?

Common Brassbuttons requires intense levels of light exposure during all growth stages for healthy development. It originates from habitats where the sun radiates freely, allowing it to flourish. Insufficient light can hinder its growth, but interestingly, the plant does not suffer from extreme sun exposure. For indoor plants, artificial lighting can be a vital solution, especially when natural sunlight is insufficient. Optimal growth can be achieved with lights providing 30-50W/sq ft for full sun plants, 20-30W/sq ft for partial sun plants, and 10-20W/sq ft for full shade plants.

What are the symptoms of inadequate lighting for Common Brassbuttons?

Common Brassbuttons shows several symptoms when exposed to inadequate lighting, such as smaller new leaves, leggy or sparse growth, faster leaf drop, slower or no new growth, lighter-colored new leaves, chlorosis, sunscald, leaf curling, wilting, and leaf scorching. These symptoms range from growth delays to physical damage caused by both insufficient and excessive sunlight, indicating the plant's struggle with its environment.

How can I address lighting issues for Common Brassbuttons indoors and outdoors?

To address lighting issues, for indoor Common Brassbuttons, gradually move the plant to a sunnier location each week until it receives at least 6 hours of direct sunlight daily, and consider using artificial light for additional support. Outdoors, relocate your plants gradually to sunnier spots to avoid sunburn. For ground plants, reduce obstructions like overhanging branches to increase sun exposure, or consider transplanting to a more suitable location. Remember, parts of the plant affected by previous poor light conditions may not recover, but new growth should be healthy with improved lighting.

🌡️ Temperature 15–35°C

Common brassbuttons occurs naturally in environments with temperatures between 68 and 95 °F (20 to 35 ℃). It prefers moderate to warm climates. Seasonal adjustments may be needed to maintain optimal growth conditions.

Ideal temperature: 15–35°C
FAQ
What is the native environment of Common brassbuttons?

Common brassbuttons, known botanically as Cotula coronopifolia, is native to environments with temperatures ranging from 68 to 95 °F (20 to 35 °C). It thrives in moderate to warm climates, ideally suited to its growth preferences. As seasons change, it may be necessary to adjust care practices to maintain these optimal growth conditions.

Does Common brassbuttons require special frost protection measures during winter?

Common brassbuttons has strong cold resistance, and special frost protection measures are normally not required during winter. However, in regions where winter temperatures are anticipated to drop below -15°C, it is crucial to provide cold protection to prevent damage. This protection can be achieved by covering the plant with soil or straw. Additionally, it is advisable to water the plant abundantly before the first freeze in autumn to ensure the soil stays moist and freezes in that condition, which helps in preventing drought and water scarcity for the plant during the cold season.

How does Common brassbuttons respond to low temperatures?

Common brassbuttons is cold-tolerant and performs best in temperatures above 20°C. During winter, it should be kept above 0°C to ensure its health and vitality. If temperatures fall below -15°C, you might not observe any immediate changes during the winter; however, there could be a noticeable decrease in sprouting, or in some cases, the plant may not sprout at all come springtime. The recommended solution for any parts of the plant that fail to sprout in the spring is to remove them.

What should be done if Common brassbuttons is exposed to high temperatures?

During the summer months, it's important to keep Common brassbuttons below 35°C to prevent stress from high temperatures. Exposure to temperatures above 38°C can cause the leaves to lighten in color, become more prone to curling, be susceptible to sunburn, and in severe cases, the plant may wilt and dry out completely. To alleviate these issues, trim away sunburned and dried-up parts of the plant. Move the plant to a shaded location to protect it from the midday and afternoon sun, or use a shade cloth to provide necessary shade. Watering the plant in the morning and evening will also help keep the soil moist and reduce stress from heat.

💨 Humidity
Humidity:
🪴 Soil 6-7
Soil pH: 6-7
🌱 Fertilizer

One fertilizer application in spring is typically enough for Common brassbuttons, though several feedings can boost growth to its fullest. Apply fertilizer every month to a month and a half. Fertilization improves the leaves' appearance and performance, helping preserve even color and a healthy texture. It also encourages root development and nutrient uptake, supporting the plant's long-term health.

FAQ
Why should I add fertilizer to my Common brassbuttons?

The main structure of the Common brassbuttons is made up of its leaves. Fertilization is an important way to ensure that the leaves look great and serve their purpose effectively. Proper fertilization will result in consistent leaf color and a healthy texture. It also helps the plant below the surface by promoting root growth and maintaining the existing root system. This means that fertilization not only benefits the plant's current health but also improves its ability to absorb nutrients from the soil in the future.

When should I fertilize my Common brassbuttons?

If you grow Common brassbuttons outdoors, it will start sending out new growth in early spring. This signals that it's time to start fertilizing. Normally, one application of fertilizer in the spring is enough for Common brassbuttons. However, if you want to maximize its growth, you can feed it multiple times during spring and early summer. In this case, you can fertilize it about once every month to a month and a half.

When should I not add fertilizer to my Common brassbuttons?

During the late fall and winter, your Common brassbuttons will go into a dormant phase where it stops producing new growth. It's best to avoid fertilizing it during this time. If you decide to fertilize it in the spring and summer, gradually reduce the amount of fertilizer as summer approaches since the growth rate of your Common brassbuttons will slow down too. In general, it's not recommended to fertilize your Common brassbuttons when the weather is unusually hot or the soil is extremely dry as it can cause stress and premature death.

What kind of fertilizer does my Common brassbuttons plant need?

Choosing the best fertilizer for a Common brassbuttons is luckily a straightforward task. These plants thrive on a general-purpose garden fertilizer with equal amounts of nitrogen, phosphorus, and potassium, like a 10-10-10 ratio. It's best to avoid fertilizers with too much nitrogen if you're unsure. Granular fertilizers are the most effective for Common brassbuttons and should be slow-release for easy application. Additionally, using an organic soil amendment like compost can be beneficial for feeding your Common brassbuttons.

How can I make my Common brassbuttons plant grow better by adding nutrients to the soil?

To ensure the best growth for your Common brassbuttons, wait until you see the first leaves poking through the soil in early spring. Once you notice this, apply a granular slow-release fertilizer with a balanced formula to the soil surrounding the base of the plant. You can repeat this fertilizing process later in the season if desired. Remember to always apply the fertilizer to the soil at the base of the plant, rather than directly onto the plant itself. Sometimes, you may need to move some leaves to access the soil above the roots. Additionally, it is beneficial to water your Common brassbuttons before and after feeding it.

🪴 Pot & Repot
✂️ Pruning

Common brassbuttons thrive with minimal pruning, ideally done in early spring. Remove dead stems to encourage healthy growth and preserve its compact shape. Light pruning promotes blooming and vigor. Always use clean tools to reduce stress and minimize the risk of disease. For personalized care tips, consult local gardening experts.

🌿 Propagating
🐛 Diseases & pets
☠️ Toxicity

Characteristics

Plant Type
Herb
Life Cycle
Perennial, Annual, Biennial
Genus
Cotula
Family
Asteraceae
Hardiness Zone
7-9
Mature Height
15 cm to 25 cm
Mature Spread
10 cm to 49 cm
Leaf Color
Green
Leaf Type
Deciduous
Flower Color
Yellow
Flower Size
0.51 cm to 1.27 cm
Bloom Time
Late spring, Summer
Planting Time
Spring, Summer
Harvest Time
Mid summer, Late summer, Early fall, Mid fall
Native Area
South Africa, Namibia, Angola

Tags (5)

Common Names (8)

en Brass-buttons
en Water cotula
en Bachelor's-button
en Buttonweed
en Waterbuttons
en Common Brassbuttons
en Bachelor's buttons
en Yellow buttons