Squirrel's tail (Justicia betonica)

Also known as: Shrimp tail

Koster's curse (*Clidemia hirta*) is a shrubby herb originally from tropical regions of Asia and Africa. Invasive in Australia and Hawaii, it creates dense thickets along water bodies, such as ponds, rivers, and streams, displacing native plant species.

In This Article

Care Tips Water Sunlight Temperature Soil Fertilize Prune Propagation Repotting

Attributes of Squirrel's tail

Lifespan

Perennial

Plant Type

Herb

Plant Height

61 cm to 91 cm

Spread

60 cm to 90 cm

Leaf Color

Green

Flower Size

2.5 cm

Flower Color

White Purple

Images of Squirrel's tail

Quickly Identify Squirrel's tail

To identify Justicia betonica, look for its distinctive white bracts that resemble shrimp, lance-shaped green leaves, and tubular flowers. The stems are quadrangular when young.

Scientific Classification of Squirrel's tail

Phylum

Vascular plants

Class

Dicotyledons

Order

Lamiales

Family

Acanthus

Genus

Water-willows

Species

Squirrel's tail

Planting and Growing of Squirrel's tail

Care Difficulty

Easy

Watering Schedule

Every 6 days

Sunlight Requirements

Partial sun

Sunshine Duration

4-8 hours

Ideal Temperature

65-85℉

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

Once a year

Repotting Season

Spring

Pot Type

Plastic, Ceramic

How to Water Squirrel's tail?

When watering Justicia betonica, aim for around 250 milliliters per session. Ensure the soil is evenly moist without becoming waterlogged. It's best to check the top inch of the soil and water when it feels dry to the touch. This way, you provide sufficient hydration without drowning the roots.

What are the symptoms of an underwatered Squirrel's tail? ›

What should I do if my Squirrel's tail is not getting enough water? ›

What are the symptoms of an overwatered Squirrel's tail? ›

How to save an overwatered Squirrel's tail? ›

What Are the Sunlight Requirements for Squirrel's tail?

Sunlight Requirements: Partial sun

Duration of light: 4-6 hours sunlight

Justicia betonica thrives in partial sun, meaning 4-6 hours of sunlight daily. This range ensures enough light for photosynthesis while preventing the stress of full sun exposure, fostering healthy, vibrant growth.

What is the ideal light condition for Justicia betonica? ›

How to ensure Justicia betonica gets ideal light? ›

What are the benefits of optimal light conditions for Justicia betonica? ›

More About Sunlight Requirements Techniques→

What Is the Ideal Temperature Range for Squirrel's tail?

Ideal Temperature: 65 ~ 85℉

Justicia betonica thrives best in temperatures of 65-85°F, as these conditions mimic its native tropical environment. Consistent warmth ensures optimal growth and flowering by maintaining essential physiological processes at their peak.

What Soil is Best for Squirrel's tail?

Soil type: Loam, Sandy loam

Soil PH: 6.5 ~ 7.5

Justicia betonica thrives in nutrient-rich soil that supplies essential minerals for optimal growth. A loamy texture ensures adequate drainage while retaining just the right amount of moisture. Ensuring the soil is well-drained prevents waterlogging, which can lead to root rot. Sandy loam is particularly effective in facilitating proper drainage, supporting healthy root development. Soil with good aeration is fundamental for Justicia betonica, as it facilitates the exchange of gases necessary for plant respiration. Maintaining soil texture through regular organic amendments can greatly benefit this process.

How to Fertilize Squirrel's tail?

Fertilizer type: Balanced

For Justicia betonica, the ideal fertilizer amount is to use a balanced liquid fertilizer diluted to half strength. This plant responds well to mild fertilizers, so aim for a concentration of 10-10-10 or 20-20-20 NPK. Always ensure the soil is moist before application to prevent root burns.

How to Prune Squirrel's tail?

Pruning Time: Spring, Summer

While Justicia betonica can be pruned throughout most of the year, avoid pruning during periods of extreme heat or drought. During such times, the plant is already under stress and may struggle to recover from the shock of pruning. Instead, wait for cooler temperatures, ensuring it has adequate water to support new growth. Moreover, always check the forecast to avoid pruning just before a cold snap, as new growth might be damaged by unexpected frost. More About Pruning Techniques→

How to Propagate Squirrel's tail plant?

Propagate Time: Spring, Early summer

Select a healthy parent plant and use pruners to cut a section of stem, below the node, about 4-6 inches long. Remove any leaves from the lower half of the cutting.

Dip the end of the stem in rooting hormone and plant it in a pot filled with potting mix. Water the soil lightly and cover the pot with a plastic bag to create a humid environment.

If propagating by seed, scatter seeds over the soil surface and lightly cover them with soil. Maintain even moisture until seedlings emerge and gradually expose them to indirect sunlight.

More About Propagating Techniques→

How to Repot Squirrel's tail plant?

Repotting frequency: Every 2-3 years

Justicia betonica needs repotting when roots start to emerge from the pot's drainage holes, indicating the plant has outgrown its current container. This is usually signaled by slower growth and poor water retention. Early signs include visibly cramped roots or the soil becoming hard and compacted.

Select a pot that is 1-2 inches larger in diameter than the current one. Choose a container with adequate drainage holes to prevent waterlogging. A slightly larger pot allows room for growth while minimizing the risk of root rot due to excess soil moisture.

Opt for a well-draining potting mix with a composition high in organic matter. This allows air circulation to the roots while holding enough moisture to support the plant. Good soil prevents compaction, encourages healthy root growth, and avoids stagnation.