Terrarium Creations
Plant Library

Polka Dot Plant

Hypoestes phyllostachya

Family: Acanthaceae

Polka Dot Plant (Hypoestes phyllostachya)

Photo via Wikimedia Commons.

Difficulty
Easy
Light
Bright, indirect
Water
Evenly moist
Humidity
High
Size
15โ€“25 cm
Closed terrarium
Excellent

The Polka Dot Plant brings rare colour to a terrarium, its green leaves freckled and splashed with pink, red or white. It's cheerful, fast-growing and easy to please.

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Light

Bright, indirect light brings out the boldest colour; in low light the markings fade and the plant stretches.

Water & humidity

Keep evenly moist, it wilts quickly when dry but recovers fast once watered.

In the terrarium

A great pop of colour for closed terrariums. It grows quickly and gets leggy, so pinch the tips regularly to keep it bushy and compact.

Tip: Pinch out flower spikes when they appear, flowering signals the plant to decline, and removing them keeps it lush for longer.

Propagation

Take stem-tip cuttings just below a leaf node and root them in water or damp sphagnum; roots usually appear within one to two weeks. Because polka dot plants get leggy with age, regular pinching both keeps the plant bushy and gives you a steady supply of cuttings.

Common problems

  • Faded, mostly-green leaves = needs more light.
  • Leggy, sparse growth = pinch the tips to force branching.

Good companions

Polka Dot Plant pairs well with plants that want the same conditions, a humid, closed terrarium with bright, indirect light. Here are some species that thrive alongside it:

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Frequently asked questions

Are Polka Dot Plants good for terrariums?

Yes, their love of humidity and vivid colour make them a favourite terrarium accent, though they need regular pinching to stay compact.

Why is my Polka Dot Plant losing its colour?

Not enough light. Move it to a brighter (but still indirect) spot to restore the pink and red markings.

Care information is a general guide; conditions vary. Some links on this site are affiliate links that help support Terrarium Creations.