The Asparagus ferns are low maintenance and can be grown in a variety of conditions, including fairly low light and humid environments, making them ideal for use in closed terrariums. Keep out of direct sun when it's at its strongest.
Keep the soil fairly moist, but never soggy by always allow at least the top 30% of soil to dry out between waterings.
When watering, thoroughly soak the soil until water drains out of the bottom of the pot. Discard any excess water in the saucer or decorative pot to prevent waterlogged roots.
It's important to adjust your watering routine based on the time of year and specific environmental conditions like humidity and temperature.