Caring for your Terrarium
December 09, 2023

Caring for your Terrarium

We love flowers at Northside Flower Market, and we love plants too! To get the most from your terrarium, succulent garden or indoor plant, follow our easy care steps below:

Pour water directly into the soil to until it is very moist, but not soaking wet. This will usually be weekly to fortnightly, depending on the season. Don’t let open terrariums dry out completely. Check for water in the bottom rocks of the terrarium before you water. About 1cm is enough.

If you are going away for an extended time, covering the top of an open terrarium will stop it from drying out.

Terrariums with lids require little watering, just check that the soil is moist. If in doubt, it is better not to water. Closed terrariums will normally fog up as their atmosphere is humid.

Many terrarium plants will gradually outgrow their space. A little trim often promotes side shoots and more lush growth.

Remove dead vegetation from the terrarium. Also trim the tips if they start to touch the glass. Remove any plants that begin to rot. Rot is often associated with too much moisture. Terrarium may need re-potting when root bound.

The glass inside your terrarium will need to be occasionally cleaned with a damp cloth to remove mineral build up on the glass.

Fern Terrariums require bright, indirect light. Never put in direct sunlight or outside as the glass will cook the plants.

Succulent & cacti terrariums require a little watering. They can be misted once a week, letting the soil dry out between watering. You can increase or decrease watering according to the weather. If you notice the leaves shrivelling, it may require more water. A succulent terrarium that is a little dry is better than over-watering.

Succulents require little maintenance. To discourage rot, remove fallen leaves from the terrarium.


If your terrarium attracts insects, Pyrethrum (low toxic insect spray) in a trigger pack (not aerosol) can be purchased from hardware stores and most supermarkets. A few sprays of Pyrethrum will bring these under control.

Browning Leaves – Usually indicates dehydration or too much sun.

Yellowing or Dropping Leaves – The terrarium is being over-watered.

Tall, spindly foliage – The terrarium needs more light.