Roselle (Hibiscus sabdariffa)

Also known as: Carcade

Hibiscus sabdariffa, commonly known as Roselle, is a species of hibiscus native to Africa. This versatile plant is widely used in beverages, as a vegetable, and in making jams and preserves.

In This Article

Care Tips Water Sunlight Temperature Soil Fertilize Prune Propagation Repotting

Attributes of Roselle

Lifespan

Annual, Perennial, Biennial

Plant Type

Herb

Plant Height

1.5 m to 2 m

Spread

1.2 m to 1.8 m

Leaf Color

Green Red

Flower Size

6 cm to 7 cm

Flower Color

White Yellow Pink Red

Images of Roselle

Quickly Identify Roselle

Striking red to purple stems

Distinctive white to yellowish-white flowers with vivid red center

Deeply lobed, maple-like leaves

3 inch (7.6 cm) wide flowers lasting a day

Fleshy red calyx encapsulating small, brown seeds

Scientific Classification of Roselle

Phylum

Vascular plants

Class

Dicotyledons

Order

Mallows, rock-roses, and allies

Family

Mallow

Genus

Hibiscus

Species

Roselle

Planting and Growing of Roselle

Care Difficulty

Easy

Watering Schedule

Every 4 days

Sunlight Requirements

Full sun

Sunshine Duration

6-10 hours

Ideal Temperature

75-86℉

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 Roselle?

For Hibiscus sabdariffa, it is crucial to maintain moist soil while avoiding waterlogging. When watering, aim for about 500 milliliters at a time, ensuring that the topsoil is consistently damp but not saturated. This approach helps in preventing root rot while providing adequate moisture for the plant's nutrient uptake.

What are the symptoms of an underwatered Roselle? ›

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

What are the symptoms of an overwatered Roselle? ›

How to save an overwatered Roselle? ›

More About Watering Techniques→

What Are the Sunlight Requirements for Roselle?

Sunlight Requirements: Full sun, Partial sun

Duration of light: 6 to 8 hours

Hibiscus sabdariffa is best suited for full to partial sun conditions, ideally six to eight hours of bright light daily. Ideal lighting promotes healthy foliage, abundant blooming, and robust plant vitality.

How much light does Hibiscus sabdariffa need? ›

Where should I place my Hibiscus sabdariffa for best growth? ›

What solutions can be adopted to manage ideal lighting conditions? ›

More About Sunlight Requirements Techniques→

What Is the Ideal Temperature Range for Roselle?

Ideal Temperature: 75 ~ 86℉

For Hibiscus sabdariffa, the optimal temperature range is between 75°F and 86°F. Maintaining this temperature ensures optimal growth and flowering. Within this range, the plant can efficiently photosynthesize and uptake nutrients, which contributes to its vigorous growth and vibrant blooms. Any significant deviation can slow down growth or affect its overall health.

What Soil is Best for Roselle?

Soil type: Loam, Sandy loam

Soil PH: 6.5 ~ 7.5

Hibiscus sabdariffa thrives in nutrient-rich soil which provides essential macro and micronutrients leading to robust plant growth and vibrant blossoms. This type of soil supports the plant's overall health, ensuring it has the necessary elements to fight off disease and grow strong. The plant requires well-draining soil to avoid waterlogging, which can lead to root rot. Well-drained soil ensures that while the plant gets the moisture it needs, it does not suffer from excess water which could stunt its growth. While the soil should drain well, it should also retain moisture to keep the roots hydrated. Moisture retentive soils balance water drainage and retention, keeping Hibiscus sabdariffa healthy through dry spells. More About Soil→

How to Fertilize Roselle?

Fertilizer type: Balanced

Hibiscus sabdariffa benefits from a balanced nutrient supply to promote its growth and flowering. Apply a liquid fertilizer at a rate of half the recommended dose every two weeks to prevent over-fertilization. For slow-release granular fertilizers, use approximately 2 tablespoons per plant per application, three times annually. More About Fertilizing Techniques→

How to Prune Roselle?

Pruning Time: Spring, Summer, Autumn, Winter

Do not remove more than one-third of the plant's overall growth at one time, as this can stress the plant. Balanced pruning ensures continued vitality and blooming. Inspect the plant for pests or diseases during pruning. Early detection can prevent the spread and save the plant from severe damage. Make your cuts during the cooler part of the day to minimize stress on the plant. Avoid pruning during very hot or very cold weather. After pruning, water the plant well and consider applying a balanced fertilizer to encourage new growth and recovery. More About Pruning Techniques→

How to Propagate Roselle plant?

Propagate Time: Spring,Early spring,Summer

Harvest mature seeds from the plant after flowering. Ensure they are fully dried before storing them in a cool, dry place until you are ready to plant them.

For seeds, a light, well-draining soil mix is ideal. For cuttings, a mix rich in organic material helps promote rooting. Moisten the soil slightly before planting.

Sow seeds on the surface and cover lightly with soil. Place cuttings in the soil, ensuring at least one node is covered. Water gently to avoid dislodging seeds or cuttings from the soil.

More About Propagating Techniques→

How to Repot Roselle plant?

Repotting frequency: Every 1-2 years

Hibiscus sabdariffa shows signals when it needs repotting, like roots growing through drainage holes or a significant slow down in growth. Typically, these signals are more evident in the spring or autumn when the plant is actively growing and can recover quickly from the stress of repotting.

When selecting a pot for Hibiscus sabdariffa, ensure it is slightly larger than the current one to give roots room to spread. A pot with good drainage holes is essential to prevent waterlogging, which can lead to root rot. The material should also allow for some breathability, such as terra cotta, which helps regulate moisture levels.

Opt for a well-draining loamy soil, ideally mixed with some organic matter to retain nutrients. This type of soil allows excess water to drain away and prevents the roots from sitting in water, reducing the risk of root rot. The organic matter provides the necessary nutrients for healthy growth.