How to grow and care for Bidens cernua L.
plant care guide about watering, fertilizing, trimming, repotting, cutting, propagating Bidens cernua L., Nodding Burr-Marigold, Nodding bur-marigold
Bidens cernua L. 101 - Plant Care Instructions
Bright indirect light
16C° ~24C°
Every 7 days
Botany Encyclopedia
Genus : Bidens
🔖 Care Tips
Aphids can easily appear, so it's good to regularly check the leaves and stems and use pesticides if found. The best time to plant seeds is from March to May. After planting, do not cover the seeds with soil or cover them lightly, and maintain a temperature of 18-22°C.
🏝️ Habitat Conditions
This plant is found worldwide but primarily grows in America. It thrives in warm, sunny locations.
🪨 Soil Mix
When planting in the yard, ensure proper drainage to prevent water pooling. It's important to plant in well-draining soil. A common mix is 40% potting soil, 20% bark, 20% leaf mold, 10% perlite, and 10% humus. However, the ratio may vary depending on conditions and environment.
🌡️ Environment
The ideal temperature is 15-25°C. In summer, avoid direct sunlight by using a shade cloth or moving the plant to a shaded area. In winter, bring the plant indoors or grow it as an annual.
☀️ Light
Ensure the plant receives plenty of light. It can also tolerate direct sunlight well.
💧 Water
This plant thrives in slightly dry soil. Water it when the inner soil dries out. In summer, when it blooms, water it when the surface soil is dry. Be careful not to get water on the flowers, as they can easily be damaged.
🌱 Propagate
Use sterilized tools to cut the stem at an angle, dry for 3-4 hours, then propagate in soil or water. 1. For water propagation, avoid transparent containers. Place the stem in water, and once roots appear, add hydroponic fertilizer. When roots are 5-7 cm long, transfer to soil. 2. For soil propagation, plant deeply in soil without fertilizer. After propagation, avoid exposing to bright light. Gradually increase light exposure to help the plant adapt. Maintain high humidity and a temperature of 20-25°C. Alternatively, divide the plant every 2-3 years for propagation.
🪴 Repot
Repot in spring every 2-3 years.
💊 Fertilize
Use fertilizer at the recommended amount during spring to summer before the flowers bloom to encourage more vigorous growth.
🌺 Flower
Blooming season is summer (June to August), and the color is yellow.
😵 Toxicity
Non-toxic and safe for pets and children.
water
How to water Bidens cernua L.
How often should I water?
check Bidens cernua L. Every 7 days if it needs water when it’s very cold (below 5℃), water less frequently
When do I need to water?
the top 2-3 inches of soil is dry
Light & Location
How much light does a Bidens cernua L. need?
Bright indirect light
Grow light
Light preference
Bidens cernua L. likes Bright indirect light, Grow light day. The brighter the space, the better this plant grows.
Check if there’s an optimal place in your house!
This plant prefers
2K ~ 10K lux to thrive!
0
20K~
2K
10K
Temperature
Natural habitat
-15
3~35℃
45
Houseplants
-15
16~24℃
45
Plants that grow in the wild and those that grow indoors prefer different temperatures. If you grow Bidens cernua L. at home, make sure the temperature is 16~24℃.
Humidity
Ideal humidity
0
40~70%
100
Bidens cernua L. prefers humidity about 40~70%. If necessary, increase humidity by misting, humidifier.
Fertilize
Collective Knowhow
When should I fertilize?
Only when your plant is healthy
How frequently should I fertilize?
1-2 times in growing season. A pinch for a small pot.
Characteristic
The taxonomic classification of Bidens cernua L. is as follows. - Kingdom: Plantae, Phylum: Tracheophyta, Class: Magnoliopsida, Order: Asterales, Family: Asteraceae, Genus: Bidens, Species: Bidens cernua
| Characteristic Name | Characteristic Value |
|---|---|
| Lifespan | Annual |
| Hardiness Zone | 3 - 7 |
| Taxonomy Name | Taxonomy Value |
|---|---|
| Phylum | Tracheophyta |
| Class | Magnoliopsida |
| Order | Asterales |
| Family | Asteraceae |
| Genus | Bidens |
| Species | Bidens cernua |
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