How to grow and care for Smilax Asparagus (Asparagus asparagoides) Indoors

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Houseplant, Asparagus asparagoides', Smilax Asparagus

Botanical name: Asparagus asparagoides
Synonym: Asparagus kuisibensis, Asparagus medeoloides
Family: Asparagaceae
Sufamily: Asparagoideae

Smilax Asparagus also called Cape Smilax, Bridal Creeper or Bridal-veil Creeper is a herbaceaus plant with vigorously-growing trailing stems on which shiny green leaf-like structures are borne. These leaf-like structures are flattened stems and not true leaves. The shiny foliage remains fresh for a long time after cutting which makes it ideal for floral arrangements especially bridal bouquets and hence the common name 'Bridal Creeper'. When provided with the right growing conditions, the plant may produce pendant white flowers which are followed by bright red berries. This plant is ideal for a hanging basket or a trellis; the stems can grow up to 5ft long.

Smilax is native to eastern and southern Africa. Avoid growing Smilax Asparagus in the ground as the plant is invasive and has become a serious environmental weed in Australia and New Zealand. Other Asparagus Plants commonly grown indoors include; Asparagus plumosus commonly called Common Asparagus Fern, Asparagus densiflorus 'Meyeri' commonly called Foxtail Fern, Asparagus falcatus commonly called Sicklethorn and Asparagus densiflorus 'Sprengeri' commonly called Emerald Fern, among others.

How to Grow Smilax Asparagus (Asparagus asparagoides)

Light for Smilax Asparagus

Smilax Asparagus prefers semi-shade to bright light conditions. However, keep it away from direct sunlight as direct sunlight causes the leaves to loss their color, turning them yellowish instead. Check out this guide on understanding light for houseplants

How to water Smilax Asparagus

Water your Smilax Asparagus thoroughly during the growing season while allowing the top 2 in. of soil to dry a little between waterings. Reduce watering during the cold period. Occasionally water the plant from below. Read more on how to water houseplants.

Temperature for Smilax Asparagus

Average warmth with a minimum of 120C is ideal for Smilax Asparagus. Though it can adapt to a wide range of temperatures, constantly high temperatures can damage the plant. Check out this guide on understanding temperature for houseplants.

Humidity for Smilax Asparagus

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

Fertilizer (Feeding) for Smilax Asparagus

Feed your Smilax Asparagus weekly during the growing season with a balanced, water-soluble fertilizer. Withhold feeding during the cold season. Read more on how to feed houseplants.

Repotting Smilax Asparagus

Repot Smilax Asparagus at the beginning of the growing season when the fleshy, fibrous roots push up the potting mixture. Use a pot which is 1 size larger and loose free-draining soil. A large plant can be divided to propagate new plants.

How to prune Smilax Asparagus

Pruning Smilax Asparagus requires cutting back of the old stems to make room for new growth and trimming of dead leaves and branches to keep the plant neat and tidy. Read more on how to prune houseplants.

How to Propagate Smilax Asparagus (Asparagus asparagoides)

Smilax Asparagus can be propagated by division or from seeds. The easiest method of propagation is by division. During repotting, divide the rhizome into sections by cutting with a sharp clean knife or a pair of scissors.

Pot each division into individual pots in moist potting soil. Place the pots in a shaded place, maintain the soil moist until new growth begins and the new plant is well established, after which routine care can begin.

Common Problems in Growing Smilax Asparagus (Asparagus asparagoides)

  • Why is the foliage of my Smilax Asparagus yellowing, brown-edged and dropping?
  • There are two reasons for yellowing, brown-edged and dropping foliage in Smilax Asparagus. One of the reason is too much sunlight; protect Smilax Asparagus from direct sunlight. The second reason is that the soil has been allowed to dry out; read more how to water houseplants correctly.

  • Why is the foliage of my Smilax Asparagus yellowing and dropping and has no scorching?
  • The causes of foliage yellowing and dropping without scorching in Smilax Asparagus are too high temperature or too little light. Maintain an average room temperature and ensure the plant receives the correct light.

  • Why is my Smilax Asparagus dying?
  • The cause for unexplained death of Smilax Asparagus is root-rot disease which is due to waterlogging (sogginess) of the soil. The thick, tuberous roots store water, soggy soil will cause root-rot.

  • Which plant pests attack Smilax Asparagus?
  • Common pests in Smilax Asparagus are Spider Mites, Aphids, Mealy Bugs and Whiteflies due to either overwatering or underwatering. They can be avoided by maintaining the soil moderately moist while avoiding overwatering or underwatering.

  • Which plants diseases attack Smilax Asparagus?
  • Common diseases in Smilax Asparagus are Crown Rot and Stem Rot and Root-rot which are prevalent in too wet conditions.

Is Smilax Asparagus (Asparagus asparagoides) toxic?

Smilax Asparagus (Asparagus asparagoides) is mildly toxic to humans and pets. The berries if ingested will cause vomiting, diarrhea and abdominal pain. If handled with bare hands, they may cause contact dermatitis. The foliage of mature plants can develop sharp spines on the branches which can cause skin irritation if handled with bare hands.

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