'Mauna Loa' peace lily guide
Spathiphyllum 'Mauna Loa', also called Mauna Loa, Mauna Loa Supreme
Published 2026-11-08
Quick care
- Light
- Medium
- Water
- When the top 2 to 3 cm (1 in) of soil is dry, or when leaves start to droop
- Humidity
- Average room air is fine. More humidity helps.
- Temperature
- 18 to 27°C (65 to 80°F). Keep above 10°C (50°F).
- Soil
- Rich, well-draining houseplant mix
- Feeding
- Half-strength fertilizer every 6 to 8 weeks in spring and summer
- Pets
- Toxic to cats and dogs. Causes mouth pain, not the kidney failure true lilies cause.
- Difficulty
- Easy
- Mature size
- 60 cm to 1 m (2 to 3 ft) tall
- Propagation
- Divide the clump when you repot
- Where to buy
- Common
This page covers what makes 'Mauna Loa' peace lily different. For light, water, soil, pests, and the rest, read the peace lily care guide.
What it is
‘Mauna Loa’ is a large peace lily with glossy, dark green leaves and big white flowers. It is one of the oldest peace lily varieties and was bred in Hawaii. ‘Mauna Loa Supreme’ is a newer, even larger form. It sits between the tabletop kinds and the giant ‘Sensation’ in size.
How to tell it apart
| Plant | Leaves | The tell |
|---|---|---|
| ‘Mauna Loa’ | Large, glossy, smooth | Big flowers held above the leaves |
| ‘Sensation’ peace lily | Huge, with deep ribs | Bigger, with heavier ribs and fewer flowers |
| ‘Domino’ peace lily | Dark green with white flecks | White speckles on the leaves |
Care differences
Care is the same as any peace lily. Its bigger size means it drinks more. Medium light keeps it growing. Brighter indirect light brings more flowers.
Grow it by division
Divide the clump in spring. Each piece needs leaves and roots.
Buying it
‘Mauna Loa’ is common at garden centers. Many large peace lilies in stores are this type or ‘Supreme’, even when the label only says peace lily. Look for upright leaves and several buds.