How to grow and care for Sicklethorn Asparagus (Asparagus falcatus) Indoors

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Asparagus falcatus, Sicklethorn Asparagus

Botanical name: Asparagus falcatus
Family: Asparagaceae
Sufamily: Asparagoideae
Common names: Sicklethorn Asparagus, Large Forest Asparagus, Sickle-leaved Asparagus

Sicklethorn Asparagus Decription

Sicklethorn Asparagus also called Large Forest Asparagus or Sickle-leaved Asparagus is a large, thorny, climbing plant which bears sickle-shaped 'leaves' and the stems are distinctly prickly, hence the common name.

The 'leaves' in Sicklethorn Asparagus are dark-green, thin, curved and about 2 in. long.

Sicklethorn Asparagus Size

The Sicklethorn Asparagus stems can grow up to 8 ft high and can be trained to grow up a pole.

Sicklethorn Asparagus Flower

When provided with the right growing conditions, Sickle-leaved Asparagus may produce fragrant white flowers which are followed by bright red berries.

Sicklethorn Asparagus Origin

Sicklethorn Asparagus is native to South Africa and Mozambique.

Sicklethorn Asparagus Invasiveness

According to Mark Tancig (University of Florida), Asparagus Ferns have been found to be invasive.

Avoid growing Asparagus Ferns in the ground and dispose them by burning as they grow vigorously, spreading across and scrambling up other plants.

Buy beautiful and healthy Asparagus Ferns from Etsy.

Asparagus falcatus, Sicklethorn Asparagus

Photo Credit: Lucid Key Server

Sicklethorn Asparagus (Asparagus falcatus) Care Indoors

Sicklethorn Asparagus Light Requirements

Sicklethorn Asparagus grows best in medium to bright, indirect light conditions. Keep the fern away from direct sunlight as direct sunlight may scorch the leaves.

Insufficient light for Sickle-leaved Asparagus causes the leaves to loss their color, turning them yellowish. Check out this guide on understanding light for houseplants.

How to water Sicklethorn Asparagus

Water Sicklethorn Asparagus thoroughly during the growing season while allowing the top 2 in. of soil to dry out between waterings. Reduce watering during the cold period as growth is minimal.

Occasionally water your Sickle-leaved Asparagus from the bottom to ensure that the soil ball is thoroughly wetted. Read more on how to water houseplants.

Temperature for Sicklethorn Asparagus

Average warmth within the range of 12-280C is ideal for Sicklethorn Asparagus.

Though Sickle-leaved Asparagus can adapt to a wide range of temperatures, constantly high temperatures can damage the plant. Read more on understanding temperature for houseplants.

Humidity for Sicklethorn Asparagus

Sicklethorn Asparagus has no need for high humidity. However, it benefits from occasional misting of the leaves especially when the temperatures are high.

Sicklethorn Asparagus Fertilizer (Feeding)

Feed Sicklethorn Asparagus weekly during the growing season with a balanced, liquid fertilizer.

Withhold feeding for Sickle-leaved Asparagus during the cold season as growth is minimal. Read more on how to feed houseplants.

Sicklethorn Asparagus Repotting

Repot Sicklethorn Asparagus at the beginning of the growing season only when it becomes root-bound.

Use a pot which is only 1 size larger than the current one. Ensure the soil is loose and free-draining and the pot has a drainage hole to avoid soggy soil.

The large Sickle-leaved Asparagus plants can be divided to propagate new plants.

Soil for Sicklethorn Asparagus

The best soil for Sicklethorn Asparagus should be rich in organic matter and free-draining to prevent it from getting soggy while providing the required nutrients.

Most multi-purpose potting mixes are ideal for Sickle-leaved Asparagus. Buy quality Potting Mix for your Sicklethorn Asparagus from Etsy.

Sicklethorn Asparagus Pruning

Pruning Sicklethorn Asparagus requires cutting back of the old stems to make room for new growth.

Trim the dead leaves and branches to keep your Sickle-leaved Asparagus neat and tidy. Read more on how to prune houseplants.

Sicklethorn Asparagus (Asparagus falcatus) Propagation

Sicklethorn Asparagus can be propagated at the beginning of the growing season from seeds, cuttings or by plant division. The easiest method of propagation is by plant division.

How to propagate Sicklethorn Asparagus by plant division

During repotting, divide the Sicklethorn Asparagus rhizome into sections by cutting with a sharp, clean knife or a pair of scissors.

Pot each Sickle-leaved Asparagus division into individual pots in moist, free-draining potting soil.

Place the pots in a warm, well-lit place and maintain the soil moist until new growth begins.

Allow the new Sicklethorn Asparagus to be well established, after which you can begin routine care.

Asparagus falcatus, Sicklethorn Asparagus

Photo Credit: Hortology

Sicklethorn Asparagus (Asparagus falcatus) Problems Indoors

Sicklethorn Asparagus (Asparagus falcatus) problems indoors include yellowing, dropping leaves, root-rot and pests among others. Read on for more and for solutions to these problems.

Sicklethorn Asparagus leaves yellowing and dropping

There are many causes of yellowing and dropping leaves in Sicklethorn Asparagus.

One reason why Sickle-leaved Asparagus may turn yellow and lose leaves is too little light.

Move your Sicklethorn Asparagus to a brighter spot where it can receive medium to bright, indirect light.

The second reason for yellowing and dropping leaves in Sicklethorn Asparagus is that the soil has been allowed to dry out.

Water your Sickle-leaved Asparagus thoroughly during the growing season while allowing the top 2 in. of soil to dry out between waterings.

The third possible cause of yellowing and dropping leaves in Sicklethorn Asparagus is too high temperatures.

Maintain an average room temperature within the range of 12-280C for Sickle-leaved Asparagus as constantly high temperatures can damage the plant.

Read more on 12 Reasons Why Asparagus Fern Leaves are Yellowing and Dropping (with solutions)

Sicklethorn Asparagus dying

The cause for unexplained death of Sicklethorn Asparagus is root-rot disease which is promoted by soggy soil.

The thick, tuberous roots in Sickle-leaved Asparagus store water therefore soggy soil will cause root-rot.

Ensure the soil for your Sicklethorn Asparagus is loose and free-draining and the pot has a drainage hole to avoid soggy soil.

Sicklethorn Asparagus pests

Sicklethorn Asparagus pests; Spider Mites, Aphids, Mealy Bugs and Whiteflies.

Sickle-leaved Asparagus infestation by these pests is promoted by either overwatering or underwatering.

You can keep away these pests from your Sicklethorn Asparagus by maintaining the soil moderately moist while avoiding overwatering or underwatering.

Sicklethorn Asparagus diseases

Sicklethorn Asparagus diseases; crown rot and stem rot disease and root-rot disease which are prevalent in too wet conditions. Isolate the affected plant to prevent spread to the other houseplants and treat it appropriately for the diseases.

Is Sicklethorn Asparagus (Asparagus falcatus) Toxic?

Sicklethorn Asparagus (Asparagus falcatus) is toxic to humans and pets.

Sickle-leaved Asparagus berries if ingested, can cause vomiting, diarrhea and abdominal pain. If handled with bare hands, the berries can cause contact dermatitis.

The foliage of mature Sicklethorn Asparagus can develop sharp spines on the branches which can cause skin irritation if handled with bare hands. Therefore, always wear gloves when handling Sicklethorn Asparagus.

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