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Oxalis Hedysaroides Rubra (Fire Fern)
₹ 599.00
Regular price
₹ 699.00
Sale price
₹ 599.00
The Oxalis Hedysaroides 'Rubra', commonly known as the Fire Fern, is a botanical marvel that brings an intense, fiery splash of burgundy to the indoor garden. Despite its misleading common name, it is not a fern at all, but rather a rare, shrub-like member of the wood sorrel family (Oxalidaceae) native to South America. It boasts delicate, clover-like leaves that mature into a deep, striking crimson-red, creating a brilliant display of color that stands out sharply against typical green foliage.
Adding to its magical appeal is the contrast of its blooms. When happy, the Fire Fern produces clusters of tiny, bright yellow, star-shaped flowers that pop spectacularly against the dark ruby leaves. It is a compact, upright grower, making it a perfect, eye-catching centerpiece for bright desks, windowsills, or even humid terrarium setups.
The Magic of "Dancing Leaves"
The Fire Fern exhibits a fascinating botanical behavior called nyctinasty. As the sun sets and light levels drop, the plant will literally fold its leaves downward, looking almost like tiny resting butterflies, before opening them back up to greet the morning sun. It may also fold its leaves if it gets too hot, too dry, or is physically disturbed. Watching this plant move is a true joy!
Caution: Contains Oxalic Acid
Like all Oxalis species, the Fire Fern contains oxalic acid, which gives the leaves a sour taste but can be toxic to cats, dogs, and humans if consumed in large quantities. It can cause stomach upset or kidney issues if ingested heavily. Always keep this fiery beauty out of reach of curious pets and toddlers.
Light
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Light is the secret to its fiery color. To maintain that deep, rich burgundy, the Fire Fern needs plenty of bright, indirect light, and it highly appreciates a few hours of direct morning or late afternoon sun. If placed in a spot that is too dim, the leaves will quickly revert to a dull green or brown as the plant struggles to photosynthesize. An east or west-facing window is usually ideal.
Watering
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This plant loves moisture and despises drying out completely. Keep the soil consistently and evenly moist, but never waterlogged or muddy. Check the soil frequently and water thoroughly as soon as the top inch feels dry to the touch. If you forget to water it, the plant will dramatically fold its leaves during the day to conserve moisture, and prolonged dryness will cause the delicate leaves to crisp and drop off.
Humidity
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Hailing from tropical South America, the Fire Fern thrives in higher humidity (50% or more). While it can adapt to average household humidity if watered correctly, it will truly flourish and grow much fuller in a humid environment. It makes a fantastic, colorful addition to a large terrarium or a greenhouse cabinet.
Growing Media
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Use a rich, moisture-retentive, yet well-draining potting mix. A blend of standard indoor potting soil mixed with a bit of peat moss (or coco coir) for moisture retention and perlite for drainage works perfectly. Avoid heavy, compacted soils that will suffocate the fine root system.
Feeding
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During the active growing season (spring and summer), feed the Fire Fern every 2 to 4 weeks with a balanced, water-soluble liquid fertilizer diluted to half strength. This will support vigorous foliage growth and encourage those delightful bright yellow flowers to bloom. Stop fertilizing during the winter months.
Common Issues & Quick Fixes
Leaves Folded Down During the Day
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While it is normal for the leaves to fold up at night, if they stay folded down in the middle of the day, the plant is stressed. This is almost always a sign that it is extremely thirsty. Check the soil and give it a thorough soaking. It may also fold its leaves if it is exposed to sudden, intense heat or harsh direct sunlight.
Fading Red Color / Turning Green
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The plant is not getting enough light. The vibrant red pigmentation requires high light levels to maintain. Move the plant closer to a window or to a brighter location to restore its signature fiery hue.
Crispy Leaves Dropping Off
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This is a classic sign of under-watering or very low humidity. The Fire Fern has very delicate foliage that will dry up and drop rapidly if the root ball is allowed to go bone dry. Ensure you are keeping the soil evenly moist and keep the plant away from dry AC drafts or heating vents.
Quick Plant Profile
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| Botanical Name | Oxalis hedysaroides 'Rubra' |
| Common Names | Fire Fern, Red Oxalis |
| Family | Oxalidaceae (Wood sorrel family) |
| Origin | South America (Colombia, Venezuela, Ecuador) |
| Leaf Detail | Trifoliate, clover-like leaves in vibrant crimson/burgundy. Exhibits nyctinasty (moves at night). |
| Growth Habit | Small, upright, bushy shrub. (Not a true fern). |
| Watering Rule | Keep evenly moist. Do not let the soil dry out completely. |
| Light | Bright indirect light to some morning sun. Essential for red color. |
| Humidity | Prefers high humidity (50%+) but adapts to average household conditions. |
| Temperature | 18°C–27°C. Sensitive to cold drafts; keep warm. |
| Toxicity | Contains oxalic acid. Toxic to pets and humans if ingested in large amounts. |
| Ideal For | Terrariums, bright windowsills, colorful plant collections. |
| Care Level | Intermediate — Requires attention to watering (do not let dry out) and good light. |