Pteris

Spring-Summer · Indoors

Feed with high nitrogen feed

Give the plant a feed monthly from May until August using a houseplant fertiliser that is high in nitrogen.

Where food elements are listed as three numeric values on the label representing in order Nitrogen(N)-Phosphorus(P)-Potassium(K), choose one where nitrogen has a high value.

Spring-Autumn · Indoors

Water regularly during growth

Water regularly while in growth.

Adopt a regime that means the plants are thoroughly watered every week so that they do not become dessicated. In hot weather watering may need to be more frequent, but less often in cool or moist conditions.

Spring-Summer · Outdoors

Feed with high nitrogen feed

Give the plant a feed monthly from May until August using a houseplant fertiliser that is high in nitrogen.

Where food elements are listed as three numeric values on the label representing in order Nitrogen(N)-Phosphorus(P)-Potassium(K), choose one where nitrogen has a high value.

Spring-Autumn · Outdoors

Water in dry periods

Established plants in the ground can cope with 7-10 days of dryness, and shrubs often manage 2 to 3 weeks. Water one section of the garden thoroughly each day rather than a little everywhere. Check plants in pots more often, especially in hot weather.

Spring-Autumn · Outdoors

Water to keep the soil moist

For best results, this plant needs soil that is always moist. Water deeply and regularly as soon as soil appears dry. Even for established plants in the ground, a dry week can cause problems with some soils. Check plants in pots more often, especially in hot weather. Or install an automatic irrigation system which will do the hard work for you, even when you are away on holiday.

Without regular watering some plants never fully regain their beauty.

Summer-Autumn · Indoors

Mist the plant in warm weather

Revive plants in warm or hot weather by misting the foliage, preferably using soft or rain water which doesn't mark the foliage. Don't mist when the plant is in full sun. The plant can be misted twice daily if you notice the process revives it.

If leaves are covered in water drops when sun is on them, the droplets can act as little magnifying glasses and cause foliage scorch.

Winter-Spring · Indoors

Water lightly in winter

The soil should remain just moist during the cold months when the plant is not in growth. Trickle a little water onto the soil surface every couple of weeks if the soil is dry. Do nothing if it is moist.

The roots remain active in winter and benefit from small amounts of moisture so they don't become completely desiccated.

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.

Indoors

Water with rain water

This plant needs rain water or soft water (the minerals in alkaline or "hard" water are harmful). This is especially important for plants in pots.

Outdoors

Water some varieties differently

Some plants within this genus have additional requirements for water. It is best to look up your specific plant, or the species it belongs to for watering guidance.

Compost · Planting

Loam based compost for repotting

Repot using any good quality standard compost.

Alternatively prepare a special compost that is best suited to the plant's needs: mix equal amounts of loam (John Innes no. 2 or 3), leaf mould, sand or grit and perlite.

Indoor temperature · Planting

Minimum temperatures vary

Plant varieties within this genus have differing requirements for minimum temperature. It is best to look up your specific plant for guidance, and/or check the label.

Indoor plant · Planting

Position in indirect light indoors

Give the plant a position that is cool and light, and away from direct sunshine.