What is a Raven ZZ Plant?
The Raven ZZ (Zamioculcas zamiifolia ‘Raven’) is a cultivar of the standard ZZ plant, selected for its extraordinary foliage color. New leaves emerge in a vivid lime green, then slowly deepen to a near-black purple-green over several weeks as the leaf matures. On a healthy plant, you can see both stages at once — fresh lime shoots rising from dark, glossy stems — making it one of the most dramatically two-toned houseplants you can grow.
Beyond the color, it has all the same tough-as-nails qualities as the species: drought-tolerant, low-light-tolerant, and slow but steady. It became available in the hobby around 2019 and remains slightly harder to find than the plain green form, which is why collectors seek it out.
How is the Raven ZZ different from a standard ZZ plant?
The care is identical — the only meaningful difference is the color. The standard ZZ has medium green mature leaves; the Raven’s mature leaves are near-black, a deep purple-green that reads as black in most interior lighting. Both share the same rhizome-based drought tolerance, the same low-light adaptability, and the same slow growth rate.
The two-tone effect — lime new growth gradually darkening to near-black — is unique to this cultivar and is the reason it commands a premium over the plain green form. It is not a variegated plant; the color is the fully-expressed phenotype, not a mutation that can revert.
How much light does a Raven ZZ need?
Like the standard ZZ, the Raven tolerates low light better than most houseplants — including dim offices with little natural light. That said, brighter indirect light enhances the contrast between lime new growth and dark mature leaves and encourages faster, denser growth.
Keep it out of harsh direct sun, which scorches the dark foliage more readily than it would lighter-colored leaves.
How often should you water a Raven ZZ?
Water every 2–3 weeks, and less in winter. The Raven ZZ stores water in the same thick underground rhizomes as the regular ZZ, so it is built for drought and killed by overwatering.
Let the soil dry out completely between waterings. If you’re unsure, wait another week — the rhizomes give the plant reserves to last. Drooping, yellowing, or mushy stems are all signs of too much water, not too little.
Why are new Raven ZZ leaves lime green and not black?
This is normal and part of the cultivar’s signature look. New leaves emerge bright lime green and darken to near-black over several weeks as they mature. A plant with active growth always shows both colors at once. The transition takes longer in low light, where growth is slower overall. No intervention is needed — patience is the only requirement.
Is a Raven ZZ toxic to pets?
Yes — like all ZZ plants, the Raven cultivar contains insoluble calcium oxalates that cause oral irritation, excessive drooling, and vomiting if chewed by cats or dogs. It isn’t listed individually in the ASPCA database, but its toxicity is consistent with the species and is documented by university extension and horticulture sources. Keep it out of reach of pets.