Genus guide
Blechnum — 19 species
Part of the Ferns family (Polypodiopsida)
Blechnum is a genus of ladder-leaf ferns known for their distinctive pinnate fronds that unfurl in coppery-pink tones before maturing to deep green. Brazilian Tree Fern, Moore's Blechnum, Hammock Fern, and Heart-leaved Blechnum all prefer bright to medium indirect light and consistently moist soil — water thoroughly two or more times a week and never allow the root ball to dry out completely, as drought quickly causes browning. Toxicity varies among species in the genus, so verify the safety of your specific Blechnum before placing it where cats or dogs can reach it.
All Blechnum species we cover
- Alpine Water Fern
- Blechnum chilense
- Brazilian Tree Fern
- Chilean Hard Fern
- Crested Silver Lady Fern
- Crown Fern
- Dwarf Tree Fern
- Giant Hard Fern
- Hammock Fern
- Hard Fern
- Heart-leaved Blechnum
- Little Hard Fern
- Miniature Tree Fern
- Miniature Tree Fern
- Moore's Blechnum
- River Water Fern
- Silver Lady Fern
- Strap Water Fern
- Watercress Fern
Blechnum — frequently asked questions
Are Blechnum plants toxic to cats and dogs?
Most Blechnum are pet-safe. Of the 19 Blechnum species we cover, 14 are non-toxic on the ASPCA list and 5 carry a toxic or mildly-toxic rating. Even so, confirm the individual species before trusting it around pets.
How much light do Blechnum plants need?
Most Blechnum do best in medium indirect light. If yours stretches toward the window or loses its variegation it wants more light; scorched or bleached leaves mean it is getting too much direct sun.
Are Blechnum easy to care for?
Many Blechnum are beginner-friendly — they tolerate lower light and forgiving watering. Water to how fast the pot actually dries rather than a fixed calendar and most will thrive.
How many Blechnum varieties are there?
Growli's care library covers 19 Blechnum species and varieties — browse them all above. They share a similar light, water and soil pattern, so once you learn one Blechnum, the rest follow closely.
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