Round-Leaf Calathea / Calathea orbifolia

Goeppertia orbifolia

description

Round-Leaf Calathea is a tropical foliage plant with broad round leaves striped in silver.

benefits

Pet-friendly, non-toxic to animals
Suitable for containers

How to care for Round-Leaf Calathea

sunlight

In its tropical forest home, Round-Leaf Calathea grows beneath a leafy canopy. Give it gentle, filtered light indoors to keep its silver striping clear without scorching the broad leaves.

Bright indirect light

Ideal near an east-facing window, or a few feet back from a bright south or west window behind a sheer curtain. Avoid direct sun on the leaves, especially in the afternoon.

Medium indirect light - tolerated

It can manage a brighter room set farther from the window, but growth will slow and markings may look less defined. Move it closer if new leaves are small or sparse.

If the leaf edges curl or develop pale, crispy patches, move the pot away from hot glass and harsh sun.

watering

Keep the mix lightly and evenly moist, but never waterlogged. Water thoroughly until excess drains away, then empty the saucer.

Spring and summer

In bright, indirect light, this is often about every 5-7 days. Check first: water when the top 1 inch of mix feels dry and the pot is noticeably lighter, while the root ball beneath is still slightly damp.

Autumn and winter

Growth slows in lower light, so watering may be needed roughly every 10-14 days. Let the top 1-2 inches dry before watering, but do not allow the whole pot to become bone dry.

Use room-temperature filtered, distilled, or rainwater if possible. Mineral-heavy tap water can contribute to brown leaf edges.

These intervals are starting points. Warmth, brighter light, a small terracotta pot, and a chunky mix dry faster, while low light, cool rooms, high humidity, and a larger plastic pot slow drying.

Constantly wet soil can rot the roots. If the mix stays wet for more than a week, check that the pot has drainage and reduce watering.

humidity

Preferred humidity

60-70%

In its tropical forest habitat, Round-Leaf Calathea grows in consistently humid air. It is happiest in a bright room with humidity around 60% or higher.

Acceptable at home

45-60%

It can manage average household humidity if watering is steady, but dry air often causes crisp brown leaf edges, curling, or new leaves that unfurl poorly. Keep it away from radiators, heating vents, and air conditioning.

A humidifier nearby is more effective than misting the leaves.

Group plants together or use a humidifier during the heating season.
Check humidity with a small hygrometer, especially if leaf edges keep browning.

temperature

Preferred temperature

18-27°C (65-80°F)

Winter minimum

16°C (61°F)

Native to warm, sheltered tropical forests, Round-Leaf Calathea dislikes chilly air and sudden swings. Keep it in a consistently warm room, away from exterior doors, air conditioning, and heating vents.

Check the temperature near the leaves, not just across the room, as windowsills and drafty corners can be much cooler.

Cold drafts or temperatures below 16°C (61°F) can cause leaf damage and slow growth.

nutrition

March - August

Feed about once a month while the plant is making new leaves, using a balanced liquid houseplant fertilizer at half the label strength. Do not feed in autumn and winter unless it is actively growing in warm, bright conditions.

Nitrogen

Nitrogen supports the large green leaves. A balanced fertilizer provides enough without pushing soft, weak growth.

Apply fertilizer to already moist soil, then flush the pot with plain water every few months to limit salt buildup.

soil

Moisture-retentive, airy soil

Use a loose mix that holds some moisture but never stays soggy, as its fine roots dislike both drying out and compaction. Combine a quality houseplant soil with coconut coir or fine bark and perlite or pumice for air around the roots.

pH 5,5 - 6,5

This is slightly acidic, which suits this rainforest plant. Most peat- or coir-based houseplant mixes fall in this range, so avoid adding lime or using strongly alkaline garden soil.