Watering, position, propagation & air purification
The Sansevieria survives anything — darkness, drought, neglect. The one plant you really can’t kill. Almost.
The Sansevieria — known in German as Bogenhanf or mother-in-law’s tongue — is the ultimate beginner plant. It tolerates shade, sun, dry heated air, weeks without water, and even complete neglect. You see it everywhere in offices, medical practices, and hotel lobbies — and it still always looks good.
In its native habitat, the dry regions of West and East Africa, it grows in rocky soil under extreme conditions. That toughness has made it the best-selling houseplant in the Netherlands — and in Austria too, you’ll spot it in almost every home.
Quick profile: Sansevieria
Botanical name: Dracaena trifasciata (formerly Sansevieria)
Origin: West and East Africa
Family: Asparagaceae
Hardy: No (min. 10°C)
Position: Sun to shade (it all works)
Watering: Very little (every 2–4 weeks)
Height: 30 cm – 1.2 m (depending on the variety)
Difficulty: very easy
Watering a Sansevieria
Watering a Sansevieria is so easy you can almost forget about it — and that’s exactly the point. The Sansevieria stores water in its thick leaves and can go for weeks without being watered. In summer, water every two to three weeks; in winter, every four to six weeks. Some people don’t water it at all in winter — and the plant still survives.
The only way to kill a Sansevieria is by overwatering it. Waterlogging makes the roots and the base of the leaves rot — and then it declines fast. Better too dry than too wet. Always.
Warning sign: Mushy, soft leaves at the base = overwatering. Stop watering immediately, take the plant out of the pot, cut off any rotten parts, and repot it in dry soil. Dry, brown leaf tips = air that is too dry or too little water (rare).
Sansevieria Placement
Sansevieria is one of the few plants that can truly live almost anywhere — from full sun to a dark hallway. Of course, it grows best in bright, indirect light. But it also survives in rooms without windows, as long as there is occasional artificial light.
In dark corners, it grows more slowly and the leaf pattern becomes paler. In the sun, it grows faster and the colours are more vibrant. But it never complains — no matter where you place it.
Sansevieria Varieties
There are more Sansevieria varieties than most people think:
- Sansevieria trifasciata 'Laurentii' — the classic variety with yellow leaf margins and a dark green center. Grows up to 1 metre tall.
- Sansevieria cylindrica — cylindrical, rounded leaves instead of flat ones. Often sold braided. Very decorative.
- Sansevieria 'Moonshine' — silvery-green leaves, very elegant and modern.
- Sansevieria 'Hahnii' (Bird’s Nest) — a compact rosette, only 15–20 cm tall. Perfect for small spaces and desks.
Propagating Sansevieria
Propagating Sansevieria works in two ways:
Division: The easiest method. When repotting, carefully divide the plant — each section with roots and at least one leaf can be planted separately.
Leaf cuttings: Cut one leaf into pieces 5–10 cm long, let the cut edges dry (for one to two days), then place them upright in moist soil. After a few weeks, roots and new shoots will develop. Please note: with the 'Laurentii' variety, leaf cuttings lose their yellow leaf margins — the new plants will be completely green. If you want to preserve the variegation, propagation by division is the only way.
Sansevieria and Air Purification
In the famous 1989 NASA study, Sansevieria was identified as one of the best air-purifying plants. It filters formaldehyde, benzene, xylene and trichloroethylene from the air. It also has one special trait: it absorbs CO₂ at night and releases oxygen (CAM photosynthesis) — most plants only do that during the day. That is why it is often recommended as a bedroom plant.
That said, you would need a great many plants to notice a real effect. As a pleasant bonus, the air-purifying quality is still welcome — but don’t expect miracles.
Tip: Sansevieria is the perfect plant for people who travel a lot or often forget to water. Three weeks away on holiday? No problem. It simply stands there and waits patiently.
Sansevieria at MoBlumen Vienna
Snake plant in a pot — from EUR 19.90, delivery in Vienna.
Frequently asked questions about Sansevieria
Every two to three weeks in summer, every four to six weeks in winter. The soil must dry out completely between waterings. Less is better than too much.
Mildly toxic. The leaves contain saponins, which can cause gastrointestinal upset if swallowed. In homes with cats and dogs, keep it out of reach — or choose a non-toxic alternative such as a spider plant.
Yes, though rarely. When it flowers, it produces a long stem with small, white, highly fragrant blooms. This usually happens when the plant is slightly stressed (too root-bound, too dry). The flowers are especially fragrant in the evening.
Fresh flowers at MoBlumen Vienna
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