Indicus (Damnacanthus indicus)

Also known as: Indian Thorn

The plant reaches a height of 30 to 60 cm. Its main stem grows upright, while lateral branches spread out and are well-branched. Leaves are positioned opposite each other, oval-shaped, and measure 1 to 2.5 cm in length. They have a hard, glossy surface. Leaf buds feature a pair of elongated spines, each 1 to 2 cm long. Leaves extend horizontally from the branches, while the spines point vertically. Typically, two small white flowers, each about 1 cm in length, bloom at the leaf buds. The plant produces berries that are 5 to 6 mm in diameter, turning red in the winter, and retain a small spear-like tip.

In This Article

Care Tips Water Sunlight Temperature Soil Fertilize Prune Propagation Repotting

Attributes of Indicus

Lifespan

Perennial

Plant Type

Shrub

Plant Height

30 cm to 1.5 m

Spread

0.5 to 1 meter

Leaf Color

Dark green

Flower Size

1 to 2 cm

Flower Color

White

Images of Indicus

Quickly Identify Indicus

Damnacanthus indicus can be identified by its sharp thorns, opposite leaves that are oblong and leathery, and small white flowers during the blooming season. The presence of red fruits also aids in identification.

Scientific Classification of Indicus

Phylum

Vascular plants

Class

Dicotyledons

Order

Gentians, dogbanes, madders, and allies

Family

Madder

Genus

Damnacanthus

Species

Indicus

Planting and Growing of Indicus

Care Difficulty

Easy

Watering Schedule

Every 3 days

Sunlight Requirements

Partial sun

Sunshine Duration

4-8 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 Indicus?

Damnacanthus indicus thrives in moderately moist soil. When watering, aim for approximately 200 ml per session to thoroughly moisten the soil without saturating it. Ensure excess water drains to prevent waterlogging.

What are the symptoms of an underwatered Indicus? ›

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

What are the symptoms of an overwatered Indicus? ›

How to save an overwatered Indicus? ›

What Are the Sunlight Requirements for Indicus?

Sunlight Requirements: Partial sun

Duration of light: 3 to 6 hours

Partial sunlight benefits Damnacanthus indicus by promoting healthy growth and vibrant foliage. This range prevents sunburn while ensuring enough light for photosynthesis, improving overall plant vitality.

What type of lighting does Damnacanthus indicus prefer? ›

How to provide Damnacanthus indicus with its ideal lighting? ›

What benefits does Damnacanthus indicus gain from ideal lighting? ›

What Is the Ideal Temperature Range for Indicus?

Ideal Temperature: 60 ~ 75℉

Damnacanthus indicus thrives best in a temperature range of 60 to 75 degrees Fahrenheit. Maintaining this temperature range ensures optimal growth, health, and vigor. Such conditions mimic the plant's natural habitat, thereby promoting the best possible results in terms of leaf coloration and bloom frequency.

What Soil is Best for Indicus?

Soil type: Loam, Sandy loam

Soil PH: 6.5 ~ 7.5

Damnacanthus indicus thrives in soil that offers excellent drainage. This requirement prevents root rot and maintains optimal moisture levels, facilitating healthy growth and vibrant foliage. This plant prefers soil rich in organic matter, enhancing nutrient availability and supporting robust growth. Nutrient-rich soil contributes to the plant's health and resilience. The soil should retain moderate moisture to ensure a consistent water supply, crucial for sustaining the plant during dry periods without risk of waterlogging.

How to Fertilize Indicus?

Fertilizer type: Balanced

For Damnacanthus indicus, it's crucial to apply fertilizer carefully to avoid root burn. Use a balanced liquid fertilizer diluted to half the recommended strength for houseplants. For solid or slow-release granules, apply according to the package instructions, typically a small handful per plant. Always adjust the amount based on the plant's size and maturity, ensuring the roots are not overwhelmed.

How to Prune Indicus?

Pruning Time: Spring, Summer, Autumn

Start by removing any dead or damaged branches to encourage healthy growth. Use sharp, clean pruning shears to avoid causing any unnecessary damage. Trim back overgrown branches to maintain the desired shape and size of the plant. Focus on evenly distributing the foliage to ensure good airflow and sunlight penetration. Pruning should aim at enhancing the aesthetic look while maintaining the plant's natural form. More About Pruning Techniques→

How to Propagate Indicus plant?

Propagate Time: Spring, Early summer, Late winter

Start by preparing a well-draining soil mix, which usually consists of a balance of peat, perlite, and sand. This ensures the root system of the propagated plant will grow robustly without waterlogging issues.

Sow seeds in prepared trays, ensuring they are evenly spaced. Lightly cover them with soil, then water gently to avoid washing away the seeds. Keep the soil moist but not drenched to encourage germination.

Select healthy branches and cut 4-6 inch sections with a clean cut. Remove the lower leaves to prevent rot and dip the cut end in rooting hormone to encourage faster root formation.

More About Propagating Techniques→

How to Repot Indicus plant?

Repotting frequency: every two years

Damnacanthus indicus shows signs of needing repotting when its roots begin to outgrow the current container or when soil drainage becomes inadequate. These factors typically occur every couple of years, specifically in early spring or during the cooler months of autumn to minimize stress.

Select a pot that is one or two sizes larger than the current one, and ensure it has adequate drainage holes. This not only allows room for root expansion but also prevents waterlogging, which can harm this plant's roots.

Opt for a well-draining cactus mix to repot Damnacanthus indicus. This type of soil prevents moisture retention, reducing the risk of root rot, and it provides the necessary aeration for a healthy root system.