Azores adder's-tongue (Ophioglossum azoricum)

Care, watering, light and tips for Azores adder's-tongue on Floravia.

Azores adder's-tongue

Quick facts

About Azores adder's-tongue

Ophioglossum azoricum, commonly known as Dwarf Adder's-tongue, is a small, perennial terrestrial fern characterized by a single leaf divided into an oval sterile part and an erect fertile spike. Its modest appearance makes it ideal for moist rock gardens, closed terrariums, or as part of a botanical fern collection, where its uniqueness can be appreciated up close.

Native range

Temperate and subtropical regions of the Northern Hemisphere, including Europe, North America, and Asia

Care tips

It prefers partial to full shade and consistently moist but well-drained soils, rich in organic matter. Watering should be regular to keep the substrate moist, but without waterlogging. A peat, sand, and leaf mold-based substrate is ideal. A common mistake is allowing the substrate to dry out completely, which can be fatal for this drought-sensitive species.

How to save a dying Azores adder's-tongue

Warning signs
Wilting or yellowing leaves, dry tips, stunted growth.
First aid
Move to a shaded, humid spot. Water with rainwater if possible. Ensure good drainage.
What kills it
Extreme dryness or prolonged waterlogging. Very sensitive to lack of humidity and direct sun.
Can it be saved?
Yes, if roots aren't fully rotted or dried out. Act quickly with humidity and shade.

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