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bright indirect light (3-6 feet from a south or west window, or right next to an east window. Under a grow light, 6-10 inches away works well) is ideal, but it adapts well to moderate light conditions. Avoid prolonged direct sun (right in the window where sun actually hits the leaves. A strong grow light 4-6 inches away can substitute). Its tolerance of variable light conditions makes it more forgiving than most asparagus ferns.Light
Water liberally during the growing season, allowing the top 2-3 inches of soil to dry between waterings. Reduce watering in winter but do not let the soil dry out completely. Good drainage is essential; the tuberous roots rot in standing water.Water
moderate humidity (40-60%. Most homes are fine, but a pebble tray helps in winter when heating dries the air out) of 50-55% is the comfortable range. More forgiving of average household humidity than many tropical plants. misting (note: misting does not actually raise humidity meaningfully. A pebble tray or humidifier is more effective) occasionally or placing on a pebble tray helps in dry climates.Humidity
Average warmth of 59-82 F (15-28 C) suits it well. Tolerates a range of indoor temperatures. Keep away from frost and cold drafts.Temperature
easyDifficulty
Sickle Thorn plant

Sickle Thorn

Asparagus falcatus

Easy

Sickle Thorn is the tough, vigorous cousin in the asparagus fern family - it grows fast, climbs if given the chance, and can eventually reach over 20 feet in its native forest habitat. Indoors it produces glossy, sickle-shaped cladodes on arching stems that trail elegantly from a hanging basket or climb a trellis. It is more adaptable than most of its relatives but comes with genuinely sharp, backward-curved thorns that will find you during repotting.

Care Guide

How to grow Sickle Thorn

Light

bright indirect light (3-6 feet

Water

Water liberally during the growing

Humidity

40-60%

Temperature

Average warmth of 59-82 F

Soil

Well-draining, moderately rich loamy mix.

Propagation

Easiest by division during repotting

Common Problems

The backward-curved thorns on mature

Did You Know

Fun Facts

In its native southern African habitat, Asparagus falcatus is used as a living security hedge: the backward-curved thorns on older stems are so effective that animals and people cannot push through an established planting.

Pet Safety

Toxic to pets

Toxic to cats, dogs, and humans if ingested. Berries and foliage cause gastrointestinal upset and skin irritation. The ASPCA's general asparagus fern toxicity listing covers this genus. The sharp thorns are also a physical hazard. Keep out of reach of children and pets.

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