Yellow Hawkweed (Tolpis barbata)

Also known as: Black eyes, Umbrella milkwort

Yellow Hawkweed, an invasive species originally from the Mediterranean region, blooms from April to July. The yellow, basket-shaped flowers of this plant are sometimes referred to with the term 'umbrella' in its common name.

In This Article

Care Tips Water Sunlight Temperature Soil Fertilize Prune Propagation Repotting

Attributes of Yellow Hawkweed

Lifespan

Annual

Plant Type

Herb

Plant Height

61 cm

Spread

Not specifically defined, but generally spreads as a small, compact plant

Leaf Color

Green

Flower Size

1.5 cm to 3 cm

Flower Color

White Yellow Red Brown

Images of Yellow Hawkweed

Quickly Identify Yellow Hawkweed

Tolpis barbata can be identified by its distinctive bristle-like hairs on the flower heads and its yellow ray florets. The leaves are finely dissected, giving a feathery appearance.

Scientific Classification of Yellow Hawkweed

Phylum

Vascular plants

Class

Dicotyledons

Order

Asterales

Family

Daisy

Genus

Tolpis

Species

Yellow Hawkweed

Planting and Growing of Yellow Hawkweed

Care Difficulty

Easy

Watering Schedule

Every 3 days

Sunlight Requirements

Full sun

Sunshine Duration

6-10 hours

Ideal Temperature

60-75℉

Soil Type

Potting Mix, Peat Mix

Soil pH

6.5-7.5

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 Yellow Hawkweed?

For Tolpis barbata, it's essential to water the plant thoroughly but not excessively. Aim to provide around 250 milliliters of water per session. Ensure water reaches the root zone without leaving the soil soggy. The topsoil should be slightly moist to the touch, indicating correct hydration.

What are the symptoms of an underwatered Yellow Hawkweed? ›

What should I do if my Yellow Hawkweed is not getting enough water? ›

What are the symptoms of an overwatered Yellow Hawkweed? ›

How to save an overwatered Yellow Hawkweed? ›

What Are the Sunlight Requirements for Yellow Hawkweed?

Sunlight Requirements: Full sun, Partial sun

Duration of light: 6 to 8 hours

Full to partial sun exposure provides Tolpis barbata with sufficient light for optimal photosynthesis, enhancing growth and vibrant blooming. Ideal conditions allow for the healthy maturation of its lovely blooms and rich foliage.

What is the best way to position this plant for optimal sunlight? ›

How can I maximize the plant's exposure to ideal lighting indoors? ›

What benefits does optimal sunlight provide to Tolpis barbata? ›

What Is the Ideal Temperature Range for Yellow Hawkweed?

Ideal Temperature: 60 ~ 75℉

The ideal temperature range for growing Tolpis barbata is between 60°F and 75°F. This range provides optimal conditions for photosynthesis, growth, and flowering. Maintaining this temperature ensures that the plant's biological processes occur at peak efficiency. It is crucial to monitor environmental temperatures closely to ensure that they remain within this optimal range, promoting robust and healthy growth.

What Soil is Best for Yellow Hawkweed?

Soil type: Sandy soil, Loam, Calcareous soil

Soil PH: 6.5 ~ 7.5

Tolpis barbata thrives in well-draining soils that prevent water accumulation around its roots. This condition helps avoid root rot and promotes healthy growth, ensuring that the plant receives adequate air circulation at the root level. While Tolpis barbata does not require highly fertile soil, a moderate level of organic matter is beneficial. This provides essential nutrients that support steady growth and contribute to the plant's vibrant foliage and flowers. Favored by Tolpis barbata, slight alkalinity in soil helps enhance nutrient absorption. This ensures the plant remains robust and floriferous, supporting its overall aesthetic appeal.

How to Fertilize Yellow Hawkweed?

Fertilizer type: Balanced

Tolpis barbata appreciates a balanced approach to fertilization, requiring about a quarter of the standard recommended dose for flowering perennials. This moderation ensures it receives adequate nutrients while preventing stress or potential damage from over-fertilization.

How to Prune Yellow Hawkweed?

Pruning Time: Spring, Summer, Autumn

Begin pruning by first removing any dead or diseased stems close to the base. Then, focus on thinning crowded areas to improve air circulation. Trim back long stems to maintain a compact form, making cuts just above a leaf node. It's best to prune this plant early in the season for encouraging growth but avoid late autumn pruning to prevent new growth that might not survive colder weather. Pruning in early spring ensures vigorous new growth throughout the season. More About Pruning Techniques→

How to Propagate Yellow Hawkweed plant?

Propagate Time: Spring

Begin by filling a seed tray with a sterilized soil mix. Sow the Tolpis barbata seeds lightly on the surface, ensuring they are evenly spaced, and press them gently into the soil. This prevents overcrowding and ensures proper air circulation.

After sowing, water the seeds gently with a fine mist to ensure the soil is adequately moist but not waterlogged. Consistent moisture is necessary for germination, but overwatering can lead to rot or fungal issues.

Place the seed tray in a warm location with bright, indirect sunlight. Tolpis barbata seeds need sufficient light to germinate, simulating the natural conditions they require in the wild.

More About Propagating Techniques→

How to Repot Yellow Hawkweed plant?

Repotting frequency: Every 1-2 years

Tolpis barbata shows signs like roots crowding out of the drainage holes and soil drying out faster than usual when ready for repotting. These indicators signal that the plant's current pot is becoming restrictive and a larger environment is required to accommodate its growth.

Opt for a pot that's 1-2 inches larger in diameter than the current one to allow space for growth without causing excessive water retention. A pot with drainage holes is essential to prevent waterlogging and root rot, supporting the plant's health and development.

Select a soil mix that provides excellent drainage and aeration to simulate the plant's natural environment. Well-draining sandy loam is ideal as it prevents water from stagnating while still holding adequate moisture for the roots, promoting healthy growth.