How to care for your Asplenium Osaka Fern (Japanese Bird’s Nest)

Whatever you want to call this plant, the main takeaway is she is a low-maintenance, evergreen fern with glossy, green fronds that are long, flat, and have ruffled edges. Historically, she could also be called Spleenwort as people thought it was beneficial… to the spleen. Yeah, don’t eat it. Anyway, enough rambling from me, how do we look after this plant?

Water
When watering, try to pour onto the soil surface and not the fronds as excessive water on there could lead to rot. If the top has started to dry out (soil doesn’t stick to your finger) then water gently and ensure the excess drains away. Leaving it in standing water will lead to root rot. Will need less watering in the winter.

Soil
She requires a soil that is nutrient rich, well draining and light in texture. The plant has paper thin roots and will struggle if the roots can’t wiggle their way around the soil. Look for soils for ferns or containing: Coco Coir, Perlite, Horticultural Sand, Zeolite, Worm Castings.

Light
Like most ferns, she is a happy medium lover. Too bright will burn, too dark will limit growth. Look for a spot which gets some light but isn’t too intense. 

Temperature & Humidity
A firm indoor houseplant that doesn’t like drafts and to be kept within the normal indoor temperature range. Mist once in a while if placed in a dry environment to keep clean and keep the humidity in a good range. 

Fertilising
Feed your bird of paradise plant with a balanced fertiliser during the growing season (spring and summer).

Troubleshooting
* Yellowing leaves: This could be a sign of overwatering. Allow the soil to dry out more between waterings.
* Brown leaf tips: This is often caused by low humidity. Mist the plant more frequently or use a humidifier.
* Lack of flowering: Ensure your plant is receiving enough light and is not being overwatered.