Nodding beggarticks (Bidens cernua)

Also known as: Nodding Burr-Marigold, Nodding bur-marigold

Nodding Beggarticks (Bidens cernua) is an annual plant that can reach heights of up to 4 meters under ideal conditions. It typically grows in wet areas, such as along streams and in swamps. The plant blooms in August, producing bright yellow flowers. Ducks are known to consume its seeds. As the plant ages, its flower heads begin to droop, which is how it gets its common name.

In This Article

Care Tips Water Sunlight Temperature Soil Fertilize Prune Propagation Repotting

Attributes of Nodding beggarticks

Lifespan

Annual

Plant Type

Herb

Plant Height

10 cm to 1.02 m

Spread

30 cm to 90 cm

Leaf Color

Green

Flower Size

2.5 cm to 5 cm

Flower Color

Yellow Brown

Images of Nodding beggarticks

Quickly Identify Nodding beggarticks

Bidens cernua can be identified by its distinctive nodding yellow flowers with serrated petals and lance-shaped leaves. The stems are often branched and hairy.

Scientific Classification of Nodding beggarticks

Phylum

Vascular plants

Class

Dicotyledons

Order

Asterales

Family

Daisy

Genus

Beggarticks

Species

Nodding beggarticks

Planting and Growing of Nodding beggarticks

Care Difficulty

Easy

Watering Schedule

Every 4 days

Sunlight Requirements

Full sun

Sunshine Duration

6-10 hours

Ideal Temperature

60-75℉

Soil Type

Potting Mix, Peat Mix

Soil pH

5-7.5

Fertilizer Type

Balanced

Pruning Season

Spring, Summer

Pruning Area

Branches, Leaves

Pruning Frequency

2 times a year

Repotting Season

Spring

Pot Type

Plastic, Ceramic

How to Water Nodding beggarticks?

Bidens cernua thrives in moist to wet soils; thus, each watering session should ensure the soil remains consistently damp but not waterlogged, with approximately 500 ml of water. The aim is to replicate natural wetland conditions, so water generously until you see minor drainage from the bottom of the pot, but avoid letting the plant sit in standing water.

What are the symptoms of an underwatered Nodding beggarticks? ›

What should I do if my Nodding beggarticks is not getting enough water? ›

What are the symptoms of an overwatered Nodding beggarticks? ›

How to save an overwatered Nodding beggarticks? ›

What Are the Sunlight Requirements for Nodding beggarticks?

Sunlight Requirements: Full sun, Partial sun

Duration of light: 4-6 hours daily

Bidens cernua ideally needs partial to full sun. Proper light ensures lush growth and abundant flowering, maximizing the plant's aesthetic and health potential by facilitating its natural processes.

How much direct sunlight does Bidens cernua require? ›

What are effective strategies to provide ideal lighting? ›

What benefits does optimal lighting provide to Bidens cernua? ›

More About Sunlight Requirements Techniques→

What Is the Ideal Temperature Range for Nodding beggarticks?

Ideal Temperature: 60 ~ 75℉

The ideal temperature range for growing Bidens cernua is between 60°F and 75°F. This range ensures optimal growth and blooming as it mimics the natural environment of the plant. Proper temperature management is essential to provide the necessary conditions for photosynthesis and nutrient uptake, which are crucial for the plant’s development and flowering.

What Soil is Best for Nodding beggarticks?

Soil type: Loam, Sandy loam, Peat soil

Soil PH: 5 ~ 7.5

This plant thrives in soils that are able to retain moisture well, as it typically grows in wetland areas. Adequate water in the soil supports the plant's lush growth and vibrant flowering, mimicking its natural habitat along river banks and marshes. Bidens cernua requires nutrient-rich soil to flourish, as this ensures vigorous growth and boosts its health. A fertile substrate supports the plant's metabolic functions and enhances its overall resilience and blooming capacity. Though moisture is essential, good drainage in soil prevents root rot and other water-related diseases. The ideal soil maintains a balance, providing necessary hydration while ensuring excess water is efficiently drained away.

How to Fertilize Nodding beggarticks?

Fertilizer type: Balanced

For Bidens cernua, moderate fertilization is key. Use a balanced liquid fertilizer diluted to half strength. Apply approximately 10-15 ml per liter of water for young plants and 20-25 ml per liter for mature plants. Slow-release granular fertilizers should be used sparingly, approximately 20 grams per plant once every four months.

How to Prune Nodding beggarticks?

Pruning Time: Spring, Summer

Begin by sterilizing your pruning shears to prevent the spread of diseases. Start with the outer stems and work your way towards the center, making clean cuts just above a leaf node. Remove any spindly, dead, or diseased stems. Aim to shape the plant to retain its natural form. Pruning should be done gradually, taking off no more than a third of the plant to avoid stress. More About Pruning Techniques→

How to Propagate Nodding beggarticks plant?

Propagate Time: Spring, Early summer, Late summer

Collect seeds from mature Bidens cernua plants when they turn brown. Clean the seeds to remove any debris and dry them thoroughly. Store in a cool, dry place until ready for sowing.

Select healthy, disease-free plants from which to take cuttings. Cut a section of the stem, about 4-6 inches long. Remove the lower leaves and make a clean cut at the base. Dip the cut end in rooting hormone powder before planting.

In the spring, divide Bidens cernua plants by carefully digging up the root ball. Separate the plant into smaller sections with both roots and stems. Replant these in suitable conditions, ensuring they are watered well.

More About Propagating Techniques→

How to Repot Nodding beggarticks plant?

Repotting frequency: Every 2-3 years

Bidens cernua usually shows signs of needing repotting when its roots start to emerge from the drainage holes of the pot or if growth becomes stunted. Another key indicator is the rapid drying of the soil after watering, which suggests that the plant's root system has outgrown its current container.

Select a pot that is about 2 inches larger in diameter than the current one. This allows the plant room to grow without overwhelming it with too much soil, which could retain excess moisture. Ensure the pot has drainage holes, promoting healthy root growth and preventing root rot.

Opt for a well-draining loamy soil mix suitable for moisture-loving plants. This ensures that the plant's roots receive ample nutrition and good aeration while minimizing the risk of waterlogging that can hinder root health and overall plant vitality.