Easy Fern Safe for pets

Blue Star Fern

Phlebodium aureum

A popular epiphytic fern with striking blue-green, lobed fronds and visible, fuzzy, golden-orange rhizomes.

The essentials at a glance

Watering

Every 7 days
Light

Medium light
Humidity

50–70 %
Temperature

18–28 °C

How to care for your Blue Star Fern

Everything you need to keep your Blue Star Fern healthy: watering, light, humidity, feeding, repotting and pruning.

The Blue Star Fern is highly prized for its unique foliage: deeply lobed, wavy fronds that are a distinctive powdery blue-green color. Its fuzzy, golden-orange rhizomes creep along the soil surface, giving it a textural appeal. This epiphytic fern is relatively easy to care for, preferring bright, indirect light, consistently moist soil that isn't waterlogged, and moderate to high humidity. It's a fantastic plant for adding color and texture to an indoor plant collection.

Watering your Blue Star Fern

Every 7 days

Allow the top 1-2 inches of soil to dry before watering thoroughly. Avoid overwatering.

How to know it needs water

Topsoil dry to the touch
Pot feels lighter
Fronds losing turgor slightly

How much light a Blue Star Fern needs

Medium light

Medium indirect light. Avoid direct sun, which can burn fronds.

Direct sun tolerated: 0 to 1 h a day
Orientations that suit it: North, North-east, East, North-west, West, South-east, South-west

Humidity and misting

50–70 %

Medium to high (50-70%). Tolerates average household humidity better than some ferns. Mist occasionally to increase humidity, especially in dry environments, or use a pebble tray.

Feeding and fertiliser

Every 30 days

Fertilize monthly during spring and summer. Reduce or stop in fall and winter.

Recommended feed: Half-strength balanced liquid fertilizer. · 2-1-2

Repotting your Blue Star Fern

Every 24 months

Repot into a slightly wider pot with an airy, well-draining orchid or fern mix. Keep rhizomes on the surface.

When: Spring
Potting mix: All-purpose potting mix
Mix in: perlite, pine bark, coco fibre

The tell-tale signs

Roots emerging from drainage holes
Rhizomes covering the entire soil surface
Stunted growth

Pruning your Blue Star Fern

As needed. Remove any old, yellowed, or damaged fronds at the base using clean, sharp shears.

Through the year

Watering is not set once and for all: it follows the light and the growth. Allow 9 days between waterings in the depth of winter, against 6 in the growing season.

Active growth · Days between waterings

Good to know

Known for its distinctive blue-green, wavy fronds and fuzzy, golden-orange rhizomes that creep along the soil surface.
Its name 'aureum' refers to the golden color of its rhizomes.

Frequently asked questions about the Blue Star Fern

How do you care for a Blue Star Fern?

Water it every 7 days. Give it medium light. Ideal humidity: 50–70 %. Ideal temperature: 18–28 °C. Allow the top 1-2 inches of soil to dry before watering thoroughly. Avoid overwatering.

How often should you water a Blue Star Fern?

Every 7 days Allow the top 1-2 inches of soil to dry before watering thoroughly. Avoid overwatering. How to know it needs water : Topsoil dry to the touch ; Pot feels lighter ; Fronds losing turgor slightly.

How much light does a Blue Star Fern need?

Medium light Medium indirect light. Avoid direct sun, which can burn fronds. 0 to 1 h a day

Is the Blue Star Fern toxic to cats and dogs?

No, the Blue Star Fern is not listed as toxic to cats and dogs. That is still no reason to let your pets chew on it.

Why are my Blue Star Fern leaves turning yellow?

Yellowing most often comes from too much water: the mix stays wet and the roots suffocate. Check that the pot drains, empty the saucer, and let the mix dry before watering again. Too little light or a cold draught cause the same symptom.

When should you repot a Blue Star Fern?

Repot every 24 months, ideally in spring. Repot into a slightly wider pot with an airy, well-draining orchid or fern mix. Keep rhizomes on the surface.