White ballmustard (Calepina irregularis)

Also known as: Smoothleaved Shepherd's-purse

White ballmustard (Calepina irregularis) originates from the Mediterranean region and is valued in some areas as an essential oilseed crop. Its seeds are housed in elongated, smooth siliques, which can be either yellow or brown. In contrast, ball mustard (Neslia paniculata) produces distinct, round, rough-textured siliques. Additionally, the fruits of ball mustard have a shorter, more pronounced point at the tip compared to the more uniformly shaped fruits of white ballmustard. These characteristics help distinguish between the two plants.

In This Article

Care Tips Water Sunlight Temperature Soil Fertilize Prune Propagation Repotting

Attributes of White ballmustard

Lifespan

Annual, Biennial

Plant Type

Herb

Plant Height

30 cm to 80 cm

Spread

30 cm to 45 cm

Leaf Color

Green

Flower Size

3 mm to 5 mm

Flower Color

White

Images of White ballmustard

Quickly Identify White ballmustard

Identification of Calepina irregularis involves noting its smooth, lobed leaves, small white flowers, and slender, elongated seed pods.

Scientific Classification of White ballmustard

Phylum

Vascular plants

Class

Dicotyledons

Order

Brassicales

Family

Cruciferae

Genus

Calepina

Species

White ballmustard

Planting and Growing of White ballmustard

Care Difficulty

Easy

Watering Schedule

Every 2 days

Sunlight Requirements

Full sun

Sunshine Duration

6-8 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 White ballmustard?

For Calepina irregularis, the watering amount should be sufficient to moisten the soil without causing it to become waterlogged. A good rule is to water until the top inch of soil feels damp, which usually requires about 250 ml of water per session.

What are the symptoms of an underwatered White ballmustard? ›

What should I do if my White ballmustard is not getting enough water? ›

What are the symptoms of an overwatered White ballmustard? ›

How to save an overwatered White ballmustard? ›

What Are the Sunlight Requirements for White ballmustard?

Sunlight Requirements: Full sun, Partial sun

Duration of light: 4-8 hours per day

Partial to full sunlight conditions are optimal. This range ensures proper photosynthetic activity, resulting in healthier, more vibrant foliage and overall improved plant health.

How can I achieve the ideal lighting conditions for Calepina irregularis? ›

What strategies can help Calepina irregularis attain optimal light? ›

What benefits does Calepina irregularis reap from ideal lighting? ›

What Is the Ideal Temperature Range for White ballmustard?

Ideal Temperature: 60 ~ 75℉

Calepina irregularis thrives best when grown in temperatures ranging from 60 to 75°F. This range ensures the plant's metabolic processes run smoothly, promoting healthy growth and development. Such temperatures are usually found in temperate regions, making it crucial to maintain this range, particularly during its growing season.

What Soil is Best for White ballmustard?

Soil type: Loam, Sandy loam

Soil PH: 6.5 ~ 7.5

Calepina irregularis thrives in soil that is rich in organic matter. This nutrient-rich environment provides essential minerals and sustenance, promoting robust growth and lush foliage for the plant. Ensuring the soil has excellent drainage is crucial for Calepina irregularis, as it prevents root rot by reducing excess moisture around the roots. This promotes healthy root development and supports overall plant vitality. Despite needing well-draining soil, Calepina irregularis also benefits from some moisture retention. A balanced soil mix prevents dehydration during dry spells, maintaining consistent hydration for optimal plant health.

How to Fertilize White ballmustard?

Fertilizer type: Balanced

For Calepina irregularis, a balanced approach to fertilization is essential due to its moderate nutrient needs. Use a liquid fertilizer diluted to half the recommended strength every two weeks during the growing season to ensure the plant receives a steady supply of nutrients. For solid or slow-release fertilizers, apply a smaller amount than you'd typically use for more nutrient-demanding species, typically around 1 teaspoon per plant, once per quarter.

How to Prune White ballmustard?

Pruning Time: Spring, Summer

Begin pruning Calepina irregularis by sterilizing your tools to prevent disease spread. Target unhealthy, damaged, or dead leaves first, using sharp scissors or pruning shears for clean cuts. For overgrown plants, trim back sections to maintain shape and control spread. Aim to keep the plant looking natural by following its existing growth pattern, and avoid over-pruning as it might stress the plant. More About Pruning Techniques→

How to Propagate White ballmustard plant?

Propagate Time: Spring

Collect mature seeds from the plant and clean them. This step ensures that the seeds are free from any debris or disease, increasing germination rates.

Sow the seeds in prepared seed trays filled with potting mix. Cover them lightly with soil, and ensure they are evenly spaced to prevent overcrowding.

After sowing, water the seeds gently to avoid displacement. Place the trays in an area with indirect sunlight, maintaining a consistent moisture level for optimal growth.

How to Repot White ballmustard plant?

Repotting frequency: Every 1-2 years

Calepina irregularis should be repotted when roots start circling inside the pot or poking through drainage holes. Another sign is when the growth slows despite optimal care. These indicators suggest the plant needs more space and fresh soil for healthy development.

Select a pot that's one size larger than the current one, typically offering 2-3 inches more in diameter. This ensures enough room for root expansion while preventing water retention issues. A pot with good drainage holes is crucial to avoid soggy soil, which can lead to root rot.

Opt for a well-draining soil mix rich in organic matter to support growth. A potting mix with perlite or sand is ideal, as it prevents waterlogged conditions and provides aeration. This earth-friendly soil keeps the plant's roots healthy and well-oxygenated, promoting vigorous growth.