Oxalis Triangularis - Butterfly Plant - 12cm | Houseplant

Oxalis triangularis (Butterfly Plant)

Oxalis triangularis (Butterfly Plant) is a striking ornamental houseplant, renowned for its vibrant, triangular purple leaves and delicate star-shaped flowers. Its unique foliage adds instant colour, texture, and movement to indoor spaces, making it a favourite among houseplant enthusiasts in the UK.

Perfect for both beginners and experienced plant owners, Oxalis triangularis is low-maintenance and adaptable, offering a bold decorative statement without demanding intensive care. Its compact size and clumping growth habit make it ideal for shelves, windowsills, or small plant displays.

Botanical Background of Oxalis triangularis

Oxalis triangularis is native to South America and belongs to the Oxalidaceae family. In its natural habitat, it thrives in bright light with moderate moisture, often forming dense clumps of vibrant foliage.

These origins make Oxalis triangularis highly adaptable as a houseplant. When grown indoors, it retains its rich purple colouring and develops occasional delicate blooms, making it an attractive and dynamic plant for UK homes.

Why Choose Oxalis triangularis?

Oxalis triangularis is chosen for its bold, architectural leaves and easy-care nature. Its triangular, deep purple foliage creates visual contrast with green-leaved plants, while its gentle, star-shaped flowers add seasonal charm.

This plant is ideal for customers looking for a compact, eye-catching houseplant that combines colour, texture, and effortless care. Oxalis triangularis works well as a standalone feature or grouped with other houseplants to create layered indoor displays.

Foliage and Visual Appeal

The standout feature of Oxalis triangularis is its triangular, deep purple leaves, which fold upward at night or when exposed to low light—a natural trait that adds movement and interest.

In addition to its striking foliage, Oxalis triangularis produces delicate white or pink flowers on thin stems, typically in spring or summer. Even when not in bloom, its rich foliage provides a strong decorative impact indoors.

Growth Habit and Size

Oxalis triangularis forms compact clumps with multiple stems emerging from the base. Each stem supports three triangular leaves, giving the plant a symmetrical, tidy appearance.

Indoors, Oxalis triangularis typically reaches a manageable height of 20–30 cm, making it ideal for small spaces such as desks, shelves, or windowsills. With proper care, it produces new shoots and maintains a full, attractive form year-round.

Light Requirements for Oxalis triangularis

Oxalis triangularis thrives in bright, indirect light. In UK homes, placing it near a sunny window or well-lit area encourages healthy leaf colouring and flowering.

Direct sunlight should be avoided, as it can scorch the leaves. In lower light conditions, the plant may enter dormancy temporarily, with leaves folding or drooping, which is normal and temporary.

Watering Oxalis triangularis

Oxalis triangularis prefers evenly moist soil but does not tolerate waterlogged conditions. Water thoroughly when the top layer of soil feels dry, allowing excess water to drain away.

During dormancy, usually in winter, reduce watering as growth slows. Overwatering can cause root rot, while underwatering may lead to drooping leaves.

Temperature and Humidity Preferences

Oxalis triangularis prefers moderate indoor temperatures and average household humidity. It is not frost-tolerant, so ensure it is kept away from cold draughts or chilly windows in UK homes.

Occasional misting is not essential but can help maintain leaf vibrancy in drier indoor air.

Is Oxalis triangularis Low-Maintenance?

Yes, Oxalis triangularis is considered low-maintenance. It is forgiving of minor care mistakes and adapts well to typical indoor conditions, making it suitable for beginners.

With basic attention to light, watering, and temperature, Oxalis triangularis continues to provide colourful foliage and seasonal blooms without demanding intensive care.

Common Care Tips and Issues

• Dormancy: Leaves may die back in winter; this is normal
• Yellowing leaves: Often caused by overwatering
• Slow growth: May indicate insufficient light

Maintaining appropriate light and watering helps Oxalis triangularis remain healthy and visually striking.

Styling Oxalis triangularis in Your Home

Oxalis triangularis is perfect for small pots on shelves, desks, or tables. Its compact, clumping habit allows for versatile placement, while its vibrant leaves provide striking contrast to green-leaved plants.

It can also be grouped with other small houseplants or seasonal blooms for decorative indoor arrangements.

Why Oxalis triangularis Is Ideal for UK Homes

Oxalis triangularis (Butterfly Plant) combines dramatic foliage, compact size, and easy care. Its adaptability and seasonal flowers make it a reliable and stylish choice for UK households.

For customers seeking a visually unique houseplant that adds colour, movement, and texture without high maintenance, Oxalis triangularis is a standout option.

Provided in a 12cm pot. 
This plant is not pet safe.
For full care instructions head over to our Houseplant Care Guides Page and select Oxalis Trangularis - View full care guide