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Asparagus setaceus, commonly known as the Asparagus Fern, Lace Fern, or Climbing Asparagus, is a delicate and airy tropical plant loved for its finely textured foliage and graceful habit. Despite its common name, its not a true fern but a member of the Asparagaceae family, native to Southern Africa.
This elegant species produces soft, feathery fronds made up of countless fine, needle-like cladodes (leaf-like structures) that create a light, cloud-like appearance. Its arching stems can be allowed to trail gracefully or trained to climb a support, making it highly versatile for both hanging baskets and pots. Mature plants may even produce small white flowers followed by clusters of tiny green berries that ripen to red.
The Asparagus setaceus adds texture, movement, and a touch of vintage charm to any interior, making it a favourite among plant stylists and collectors.
Thrives in bright, indirect light but tolerates moderate shade. Avoid harsh direct sunlight, which can scorch its delicate fronds. A bright room with filtered light is ideal.
Keep the soil lightly moist, watering when the top 23 cm feels dry. Do not allow the soil to dry out completely, but also avoid waterlogging. In winter, reduce watering frequency.
Temperature: Prefers warmth, 1826C. Avoid cold draughts and temperatures below 10C.
Humidity: Enjoys moderate to high humidity (5070%). Mist regularly, especially in centrally heated homes, to prevent frond tips from drying.
Use a rich, well-draining, peat-free compost, ideally mixed with a little perlite or sand for aeration. Repot every 12 years in spring to refresh the soil and encourage new growth.
Feed every 46 weeks in spring and summer with a balanced liquid fertiliser diluted to half strength. No feeding is needed in winter.
Trim any yellowing or old fronds at the base to maintain a tidy shape. If the plant becomes too large, it can be cut back hard it will resprout vigorously from the base. Wipe or mist foliage occasionally to keep it dust-free.
A moderately fast grower that can reach 60100 cm in height and spread. It can be trained to climb supports or left to trail naturally from shelves and hanging planters.
Yellowing fronds: Underwatering, too much direct sunlight, or low humidity.
Brown tips: Dry air or inconsistent watering.
Sparse growth: Insufficient light or lack of nutrients.
Pests: Occasionally spider mites or mealybugs increase humidity and clean foliage regularly.
Although often mistaken for a true fern, Asparagus setaceus is a relative of edible asparagus. Its delicate, lacy foliage has made it a favourite for floral arrangements and Victorian conservatories for over a century. Its soft, fine texture contrasts beautifully with broader-leaved plants, making it perfect for mixed plant displays or standalone decorative pots.
Quick Care Summary
Light: Bright, indirect; tolerates light shade
Water: Lightly moist; avoid extremes
Temperature: 1826C; protect below 10C
Humidity: Moderate to high (5070%); mist regularly
Soil: Rich, well-draining compost
Feed: Every 46 weeks in spring/summer
Growth: Trailing or climbing plant, 60100 cm; soft, feathery fronds and arching stems
Styling Tip:
Pair Asparagus setaceus with darker-leaved plants like Philodendron Micans or Calathea Orbifolia for contrast. Its airy, lace-like foliage brings softness and balance to structured interiors or minimalist spaces.
Toxicity Note: Asparagus setaceus is mildly toxic if ingested and may cause skin irritation. Keep away from pets and children.