OnMySill

Aglaonema / Chinese Evergreen

Aglaonema spp.

Aglaonema plant, image 1
Aglaonema plant, image 2

description

Chinese Evergreen, or Aglaonema spp., is a clumping tropical plant with broad, pointed leaves patterned in shades of green, silver, cream, or red. It naturally grows on the shaded forest floor in tropical Asia and New Guinea, which helps explain its tolerance of lower indoor light. Mature plants can produce small flowers followed by bright berries, though their foliage is the main attraction.

benefits

  • Suitable for containers

warnings

  • Toxic to cats
  • Toxic to dogs

How to care for Aglaonema

sunlight

Aglaonema grows beneath tropical forest canopies, where light is filtered through leaves. At home, place it in gentle indirect light and protect it from harsh midday sun.

Bright indirect light

This is ideal for fuller growth and clearer variegation. Set it near an east or north-facing window, or several feet back from a brighter window, with a sheer curtain to soften direct rays.

Practical tip: Turn the pot a quarter turn every week or two so growth stays even.

watering

Water Aglaonema when the top 1-2 inches of soil feel dry, then soak the mix until water drains from the pot. Empty the saucer so the roots are not left standing in water.

Active growth

As an approximate starting point, water about every 7-10 days. Check the soil first, since brighter light, warmth, low humidity, a small pot, or a fast-draining mix can shorten the interval.

Cool or low light

Water roughly every 2-3 weeks, or when the top 1-2 inches have dried. Cooler temperatures, dim light, a larger pot, or a moisture-retentive mix can make the soil stay wet longer.

Lift the pot before watering: a noticeably lighter pot, along with dry soil at the surface and below, is a better signal than the calendar.
Consistently wet soil can cause root rot.

humidity

Preferred humidity

50-70%

Aglaonema comes from warm, humid tropical forests, but it usually adapts well to average indoor air. Aim for 50-70% humidity when possible; around 40-60% is generally acceptable.

When air is too dry

Below 40%

Watch for brown, crispy leaf tips, curling leaves, or unusually slow new growth. Heating and air conditioning can dry the air faster, so check the plant rather than relying on a fixed schedule.

Place a small humidifier nearby for the most consistent increase.
  • Group plants together, or set the pot near a pebble tray filled with water, keeping the pot above the waterline.
  • Use a hygrometer to check the room, and improve airflow if leaves stay wet or condensation persists.

temperature

Preferred temperature

18-27°C (65-81°F)

Winter minimum

15°C (59°F)

Aglaonema comes from warm, humid tropical and subtropical forests, so keep it in a consistently warm room away from cold windows, drafts, and sudden temperature changes. Move it farther from sunny glass if leaves become dry or scorched during hot weather.

Place Aglaonema near stable indoor temperatures, and use a simple thermometer if the room feels chilly at night.
Protect it from cold drafts and temperatures below 15°C (59°F), which can cause leaf damage and slow growth.

nutrition

March - August

Feed approximately every 4-6 weeks with a balanced liquid houseplant fertilizer diluted to half the label strength. Continue only while the plant is actively producing leaves; in autumn and winter, stop feeding or wait until new growth resumes.

Nitrogen

Nitrogen supports Aglaonema's leafy growth and healthy green foliage. A cautious, balanced fertilizer normally supplies enough, while excessive feeding can cause weak growth and salt buildup.

Potassium

Potassium supports overall vigor and helps the plant use water efficiently. It is normally supplied by a balanced fertilizer, so add no separate supplement unless a soil test or specific diagnosis calls for it.

Apply fertilizer to already moist soil, never a dry root ball. If leaf tips turn brown or a white crust appears on the soil, flush the pot thoroughly with plain water and reduce feeding.

soil

Loose, moisture-retentive soil

Aglaonema roots need steady moisture with plenty of air, so use a light, well-draining mix. Combine quality potting soil with perlite and a little orchid bark, and choose a pot with a drainage hole.

pH 5,5 - 6,5

This range is mildly acidic to slightly acidic. Most peat-based or coco-based potting mixes fit it; if growth is poor and the mix is alkaline, refresh the soil rather than adding amendments without testing.

Let the top 2-3 cm of soil dry before watering again, since compact or constantly wet soil can suffocate the roots.