Bristly Buttons
Cotula Hispida
Cotula Hispida, commonly known as Bristly Buttons, is a charming perennial from the Asteraceae family. Its unique button-like flowers and resilience make it a popular choice for gardens, thriving in sunny spots and well-drained soil.
Everything it needs
9 essentials at a glance
Watering
Cotula Hispida prefers consistently moist soil, so water it thoroughly when the top inch of soil feels dry.
In warmer months, this may mean watering every 3-5 days, while in cooler months, reduce frequency to once a week. Signs of over-watering include yellowing leaves and root rot, while under-watering may cause wilting and browning leaf tips.
Light
Bristly Buttons thrive in full sun to partial shade, ideally receiving 6-8 hours of direct sunlight daily.
They can tolerate some shade, especially in hotter climates, but too much shade may hinder their growth and flowering. Ensure they are placed where they can receive bright light for optimal health.
Soil
This plant prefers well-draining soil with a pH range of 6.0 to 7.0.
A mix of potting soil, sand, and perlite works well to ensure good drainage. Avoid heavy clay soils that retain too much moisture, as this can lead to root rot.
Humidity
Cotula Hispida enjoys moderate humidity levels around 40-60%.
To increase humidity, consider misting the leaves or placing a humidifier nearby. Signs of low humidity stress include browning leaf edges and stunted growth.
Temperature
The ideal temperature range for Bristly Buttons is between 60-75°F (15-24°C).
They are hardy in USDA zones 9-11, tolerating mild frost but not extreme cold. In summer, ensure they are not exposed to excessive heat, which can cause wilting.
Fertilizing
Use a balanced fertilizer with an NPK ratio of 10-10-10, applying every 4-6 weeks during the growing season (spring and summer).
Reduce or stop fertilizing in fall and winter. Signs of nutrient deficiency include yellowing leaves and poor growth.
Pruning
Prune Bristly Buttons in early spring to remove any dead or damaged foliage.
Use clean, sharp scissors or pruning shears to avoid disease. Deadheading spent flowers throughout the blooming period encourages more blooms and keeps the plant tidy.
Repotting
Repot Cotula Hispida every 1-2 years or when it becomes root-bound, indicated by roots growing out of the drainage holes.
Choose a pot 1-2 inches larger in diameter. Gently remove the plant from its pot, loosen any tightly bound roots, and place it in fresh potting mix.
Propagation
Propagation can be achieved through seeds or division.
For seeds, sow them in spring after the last frost, covering lightly with soil. Keep the soil moist until germination. For division, carefully separate established clumps in early spring and replant them in well-draining soil.
When it's unhappy
Yellow leaves
Why it happens
This can be caused by over-watering or nutrient deficiency.
How to fix it
Check the soil moisture level and reduce watering if necessary. Fertilize with a balanced fertilizer if nutrient deficiency is suspected.
Wilting
Why it happens
Wilting can occur due to under-watering or extreme heat.
How to fix it
Ensure consistent watering, especially during hot weather, and provide some shade if temperatures exceed 80°F (27°C).
Root rot
Why it happens
Root rot is typically caused by overly wet soil and poor drainage.
How to fix it
Allow the soil to dry out between waterings and improve drainage by using a well-draining potting mix.
Pest infestation
Why it happens
Common pests include aphids and spider mites, often due to dry conditions.
How to fix it
Inspect the plant regularly, and treat infestations with insecticidal soap or neem oil as needed.
Stunted growth
Why it happens
This can result from poor soil quality or insufficient light.
How to fix it
Ensure the plant is in well-draining soil and receiving adequate sunlight, adjusting its location if necessary.
Care through the year
Spring
In spring, prune any dead foliage and start fertilizing every 4-6 weeks to encourage new growth. Monitor for pests as the weather warms.
Summer
During summer, ensure consistent watering, especially in hot weather. Provide some afternoon shade if temperatures exceed 80°F (27°C).
Fall
In fall, gradually reduce watering as the plant enters dormancy. Stop fertilizing and prepare for cooler temperatures.
Winter
In winter, protect the plant from frost and cold drafts. Water less frequently, allowing the soil to dry out more between waterings.
Toxicity & Safety
Cotula Hispida is non-toxic to pets and children. However, ingestion of large quantities may cause mild stomach upset. Always monitor young children and pets around plants.
Good to know
How often should I water my Cotula Hispida?
Water your Bristly Buttons when the top inch of soil feels dry, typically every 3-5 days in warmer months and weekly in cooler months.
What type of soil is best for Bristly Buttons?
Cotula Hispida thrives in well-draining soil with a pH of 6.0 to 7.0. A mix of potting soil, sand, and perlite is ideal.
Why are my Cotula Hispida leaves turning yellow?
Yellow leaves can indicate over-watering or a nutrient deficiency. Check soil moisture and consider fertilizing if needed.
Can I propagate Cotula Hispida from seeds?
Yes, you can propagate Bristly Buttons from seeds by sowing them in spring after the last frost and keeping the soil moist until germination.
What pests should I watch for on my Cotula Hispida?
Common pests include aphids and spider mites. Regularly inspect your plant and treat any infestations promptly with insecticidal soap.
How do I know when to repot my Cotula Hispida?
Repot your Bristly Buttons every 1-2 years or when you see roots growing out of the drainage holes, indicating it is root-bound.
What is the ideal temperature for Cotula Hispida?
Cotula Hispida prefers temperatures between 60-75°F (15-24°C) and is hardy in USDA zones 9-11.
Grows well with
Related care guides
Explore remedies
Track this plant in your garden.
Set care reminders, log growth, and join a community of plant lovers.