Marsilea drummondii
Marsilea drummondii · Marsileaceae
The gardener's calendar
Ideal time to plant marsilea drummondii: set it out when the soil is neither frozen nor waterlogged, and water generously as it establishes.
ID card
- Family
- Marsileaceae
- Type
- Aquatic fern
- Foliage
- Deciduous depending on climate
- Adult size
- 5 to 15 cm in height
- Hardiness
- Medium to good depending on climate
- Origin
- Australia
- Growth
- Fast in humid conditions
Care
Watering
Marsilea drummondii is a semi-aquatic fern that thrives in constantly moist soil, even partially submerged. Keep the substrate wet without letting it dry out completely. In an aquarium or pond, it adapts well to environments with good freshwater circulation.
Light exposure
Prefer moderate to bright light without direct scorching sun. This fern also tolerates partial shade, which is particularly useful in very hot climates. Insufficient light slows its growth; aim for 8 to 10 hours of daily light indoors.
Substrate and soil
Use rich, slightly acidic substrate composed of potting soil, peat or sphagnum peat mixed with sand. This blend retains moisture while ensuring good water retention. In ponds or aquariums, it roots well in a thin layer of nutrient-rich sediment.
Fertilization
Light and regular fertilization promotes vigorous growth. Apply diluted aquatic plant fertilizer or micronutrient supplement (iron in particular) every 2 to 3 weeks during active growth period. Reduce in winter or if dormant.
Maintenance and pruning
Remove yellowed or damaged fronds to encourage new leaf growth. This fern spreads naturally: pinch back runners if you wish to control its expansion. Regular cleaning removes unwanted algae that could smother young fronds.
Common problems
Watch for filamentous algae in aquariums and rot caused by excess stagnation. Insufficient aeration or compacted substrate promotes fungal diseases. Ensure adequate water circulation and general hygiene to prevent infections.
Did you know?
Marsilea drummondii is a living fossil fern: its ancestors date back over 100 million years. It produces sporocarps (structures resembling tiny eggs) that contain spores, a fascinating primitive characteristic. This fern is particularly prized in aquarium keeping for its delicate clover-shaped fronds that evoke four leaves, although it rarely displays them in such symmetrical fashion.
Where to buy it
Plant in spring or early autumn, avoiding spells of intense heat. Pick a plant with healthy foliage and roots that are not exposed. Best time: March, April, May, September.
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Tips generated and checked by Viridia — adapt them to your local climate.