ZZ plant care guide

Zamioculcas zamiifolia

Also known as: Zanzibar gem, Eternity plant

Pets and children

Considered toxic

All parts contain calcium oxalate; chewing causes mouth pain, swelling, and vomiting, and the sap can irritate skin, so keep it out of reach and consult a veterinarian, or a doctor for a child, if eaten.

How often to water ZZ plant

Spring–Summer (Mar–Sep)
Every 10 days
As a guide, water thoroughly only after the soil has dried through; the tubers at the base store water, so about every ten days to two weeks is enough.
Autumn (Oct–Nov)
Every 2 weeks
Generally wait about a week after the soil dries before watering; growth stops as the days shorten.
Winter (Dec–Feb)
Every month
About once a month, just barely moisten the soil; it survives almost dry, and overwatering, not drought, is what rots it.

Light and placement for ZZ plant

Bright shade generally suits it, and it tolerates a room lit only by ceiling lights; direct sun scorches the leaves, and deep shade makes new shoots lanky.

Overwintering ZZ plant

Overwintering guide: 8°C (46°F) or above

Overwinter it indoors above roughly 8°C; kept on the dry side it takes the cold better, and it should not sit directly on a cold floor.

Fertilizing and repotting ZZ plant

Fertilizer

Slow-release fertilizer about every two to three months from May to September is usually enough; it needs little feeding and none in winter.

When to repot

Spring–Summer (Mar–Sep)

Common problems with ZZ plant

  • Watered as often as other houseplants, the tubers rot and the leaves yellow.
  • Standing water in the saucer rots the roots and the stems topple at the base.
  • In a dark spot new shoots grow thin and the leaflets space out.

Tips for growing ZZ plant

  • Lift the pot and water only when it feels light; that alone prevents most trouble.
  • It grows slowly, so repotting about every two to three years is enough.
  • A single leaf pushed into soil will root, though it takes several months.

These are AI-generated general guidelines. They vary with the variety, the placement and the pot size. For effects on pets or children, consult a veterinarian or a doctor.

Keep your plant log going

Greenery is a free app that keeps your plant care going, with watering reminders and photo records. Available on iOS and Android.

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