Variegated Spathiphyllum Jet Diamond Peace Lily

The Peace Lily is already one of the most beloved indoor plants worldwide, but the Jet Diamond variety takes things to the next level with its bold variegation. Large leaves streaked with creamy white and deep green make it an absolute showstopper in any collection. But beauty aside, how does it fare around pets, reptiles, and as an indoor or terrarium plant? Let’s dive in.

Is the Jet Diamond Peace Lily Pet Safe?

Unfortunately, no. Like all Peace Lilies, the Jet Diamond is toxic to cats and dogs if ingested. It contains calcium oxalate crystals that can cause mouth irritation, drooling, and stomach upset in pets. If you’re a pet parent, you’ll want to keep this plant well out of reach or opt for pet-safe alternatives.

Reptile Safety

When it comes to reptiles and amphibians, the Jet Diamond is also not recommended for vivariums or enclosures. The same compounds that make it unsafe for pets can also be harmful to reptiles if they nibble or rub against the plant. While it thrives as a houseplant, it’s best enjoyed outside of reptile habitats.

Indoor Plant Benefits

What the Jet Diamond lacks in pet safety, it makes up for in indoor plant appeal. It’s a hardy, low-maintenance plant that tolerates lower light better than most variegated varieties, though it will show off its colors best in bright, indirect light. Its upright, sculptural leaves make a bold statement, and when mature, it produces the signature white Peace Lily flowers.

Air-Purifying Qualities

Peace Lilies are well-known as one of the top air-purifying plants, and the Jet Diamond is no exception. It helps filter common indoor pollutants like formaldehyde, benzene, and carbon monoxide, while also raising indoor humidity slightly. This makes it not just a pretty plant, but one that actively supports a healthier home environment.

Terrarium or Vivarium Plant?

Unlike smaller peperomias or ferns, the Jet Diamond Peace Lily is not suited for terrariums or vivariums due to its larger size and toxicity. It’s best enjoyed as a standalone indoor feature plant in a pot or as part of a bigger indoor jungle.

Jet Diamond Peace Lily Care Guide

Here’s how to keep your Jet Diamond thriving:

Light

• Prefers bright, indirect light for the best variegation.

• Can tolerate lower light, but leaves may show less contrast.

• Avoid harsh direct sun, which can scorch the foliage.

Watering

• Keep soil evenly moist but not soggy.

• Water when the top 3–4 cm of soil feels dry.

• Peace Lilies will often “tell you” when they’re thirsty by slightly drooping.

Temperature & Humidity

• Happy in normal household temps (18–27°C).

• Loves moderate to high humidity.

• Mist occasionally or place near a humidifier for lush growth.

🪴Soil

• Use a well-draining indoor potting mix with added perlite.

• Soil should retain moisture but never stay waterlogged.

Fertiliser

• Feed every 4–6 weeks in spring and summer with a balanced liquid fertiliser.

• Pause feeding in winter when growth slows.

Pruning & Repotting

• Trim yellow or damaged leaves at the base.

• Wipe leaves regularly to keep that gorgeous variegation shining.

• Repot every 1–2 years or when roots outgrow the pot.

Final Thoughts

The Variegated Jet Diamond Peace Lily is a true statement plant — bold, elegant, and wonderfully air-purifying. While it isn’t safe for pets or reptiles and won’t work in terrariums, it shines as an indoor plant that brings dramatic foliage and classic Peace Lily blooms into your space.

If you’re looking for a plant that’s both easy-care and stunningly unique, the Jet Diamond Peace Lily is a perfect choice. 🌱✨