What is a foxtail fern?
The foxtail fern (Asparagus densiflorus ‘Myers’) is a compact, upright cultivar of the ornamental asparagus genus, prized for its symmetrical, bottle-brush plumes of densely packed emerald-green cladodes. Despite the common name it is not a true fern — it belongs to the asparagus family, produces tiny white flowers and vivid red berries, and stores water in swollen tuberous roots. The ‘Myers’ cultivar (sometimes called Myers asparagus fern) stands apart from its better-known sibling, the sprawling Sprengeri form: its stems grow upright and tapered like a fox’s tail rather than arching outward, giving it a more architectural silhouette on a shelf or tabletop.
How much light does a foxtail fern need?
Bright, indirect light is ideal. An east- or west-facing windowsill a foot or two from the glass produces the thickest, most vividly green plumes. In lower light the plant survives but growth slows and the tight bottle-brush shape becomes loose and sparse; in hot direct afternoon sun the cladodes scorch and bleach. A sheer curtain in a south window solves both problems.
How often should you water a foxtail fern?
Water every 1–2 weeks, allowing the top inch of soil to dry before watering again. The tuberous root system gives the plant genuine drought tolerance — it is far safer to underwater slightly than to leave roots sitting in soggy soil, which triggers yellowing and needle drop. Cut back watering somewhat in winter when growth slows.
Does a foxtail fern need humidity?
Average household humidity (40–60 %) is perfectly adequate. The plant is more forgiving than true ferns in dry rooms, but in winter, central heating can push humidity below 30 %, causing crispy needle tips. A pebble tray with water under the pot or an occasional mist is enough. Avoid cold draughts from air conditioners or vents placed close to the foliage.
How do you repot and propagate a foxtail fern?
Foxtail ferns become root-bound quickly — when you see roots coiling under the pot or pushing through drainage holes, it is time to repot, ideally in spring. Move up one pot size and use a well-draining mix (standard potting soil with added perlite works well). Division at repotting time is also the best way to propagate: separate the root clump into sections, each with a handful of stems, and pot each piece up individually. Propagation from the red berries is possible but slow and less reliable.
Is foxtail fern toxic to pets?
Yes — the ASPCA lists Asparagus densiflorus as toxic to cats and dogs. The berries contain sapogenins; ingestion can cause vomiting, diarrhea, and abdominal pain, and repeated contact with the berries may irritate skin. Keep the plant on a high shelf or in a room your pets cannot access.