Notes on Ferns in Pots

Bullet points re ferns in containers

• Potting mix needs to allow for good drainage – pumice or sand in mix is a good idea. Slow release fertiliser (osmocote 8-9 month) small amount of in the mix is a good idea. Blood and bone is also a good fertiliser.
• If pot has a catch pot to capture any water drip important the roots are not sitting in the water all the time as soil will go sour – good idea to stand on inverted saucer or put pebbles in catch pot to elevate. Pot ferns are planted in must have drainage holes.
• Ferns need good air flow and an adequate moisture content to thrive in – if indoor avoid rooms with air conditioning
• Don’t place ferns in full sunlight nor where very windy.
• Hanging baskets are good for some species – Davallia (rabbits foot), Nephrolepsis (boston), tree fern orchids (Earina varieties), Asplenium flaccidum, Microsorum pustulatum
• The Victorian craze of ferns in bottles or terrariums is an interesting and challenging way for the enthusiast.
• Pests – aphids, scale, mealy bug, passion vine leaf hopper are to be looked out for – spray as appropriate. Passion Vine leaf hopper use pyrethrum product.
• Light balance is important – too light and stems will thicken and fronds get yellow, too dark and you get spindly elongated fronds. Indoors avoid bright lit areas and hot fluorescent lighting.
• Don’t be scared to cut off or cut back fronds especially just prior to coming out of dormancy (late winter)