Blechnum brasiliense 'Volcano'

Spring-Autumn · Indoors

General houseplant fertiliser

Feed this plant with a general houseplant fertiliser.

Spring-Autumn · Indoors

Feed regularly during growth

Feed the plant regularly during growth for improved foliage. Don't feed the plant in winter. Follow the feed manufacturer's directions for the amount of feed to use.

Spring-Winter · Indoors

Keep moist, but not standing in water

Keep moist at all times. Water more sparingly in winter, keep the compost just moist.

Spring-Winter · Indoors

Soak completely when watering

Water until water comes out of the bottom of the pot. Leave for 30 minutes or so until the compost is fully moist, then pour away the excess water so the plant pot is not standing in water. (This avoids waterlogging which can cause "root rot".)

Spring - late · Outdoors

Feed with slow release fertiliser

Apply a general purpose slow release fertiliser, spreading it around the root area of the plant as it is coming into growth. (Or apply a liquid feed at regular intervals throughout the growing season.)

This is a simple way to provide a nutrient boost as a single annual procedure.

Winter-Spring · Planting

Prune damaged fern fronds

You can remove old fronds in winter if they look tattered. Carefully cut them off using secateurs. Other fronds can be removed as they break, die or fail in spring. Cut them off carefully so as not to damage the young, emergent growth.

Compost · Planting

Loam based houseplant compost for repotting

Buy container or house plant compost that is loam based if possible (i.e. is based on John Innes compost number 2 or 3. This contains more fertiliser and is better suited to established plants.

John Innes no. 1 has the lowest level of fertiliser and is used for seedlings and young plants, so is generally used where plants will be 'potted on' after a number of weeks.

Indoor temperature · Planting

Average/cool room, cooler room (min 10C/50F) in winter

This plant thrives in average or cool rooms when grown as a houseplant (average room temperature is around 20C/68F). The minimum advisable temperatures at night and in the colder months are 10C/50F.

Indoor plant · Planting

Position in a bright spot, no direct sun

Give this a bright position away from the direct sun, especially direct sun at the height of the day. (Direct sunshine is too hot and can burn the leaves.) Move the plant to a brighter position in the room during winter and early spring.