Dracaena angolensis (Sansevieria cylindrica) 'Straight'

Origin and background of Dracaena angolensis (Sansevieria cylindrica) 'Straight'

Dracaena angolensis is native to southern tropical Africa. Its cylindrical leaves grow among dry lowland vegetation and may stand upright, spread sideways or curve backwards. Mature plants can produce long stalks of white to very pale pink flowers.

Drying and root care for snake plants

• Light: Give the upright bundle bright, filtered light for firm cylindrical leaves. A lower-light position is tolerated, but it slows growth and lengthens the time the pot stays moist.
• Watering: Water only after the coarse medium is dry from top to bottom; saturate the modest root ball once and keep the outer pot empty while it dries again.
• Substrate and pot: Grow it in a coarse succulent medium inside a freely draining container. Keep an outer pot empty and avoid moving a small rooted group into a much larger mass of mix.
• Temperature: Warm growing conditions are appropriate. Protect the leaves and roots from frost, cold draughts and cold wet conditions.
• Feeding: Apply a mild balanced fertilizer only during visible growth. Feed very little when growth slows because light or warmth is limited.
• Repotting and propagation: Repot once roots fill the container or the rhizomes begin to push against it. Rooted offsets can be separated, while an intact developing shoot will eventually form the species’ natural flat fan.

Troubleshooting Dracaena angolensis (Sansevieria cylindrica) 'Straight'

• One stem fails before the others: A straight bundle may contain several separately rooted or partly rooted pieces. Test the base of the affected rod and inspect its own roots. Remove a failed piece without disturbing firm neighbours more than necessary, and do not increase watering for the whole pot because one rod has wrinkled.
• Dark, yielding bases: A soft or wet lower end is a sign of basal decay, not normal flexibility. Take the bundle out of its cover pot, remove any ties and inspect the hidden contact points. Keep only firm material with healthy roots; a rod with softness travelling upward should not be used for propagation.
• Binding or pressure marks: A dry ring or flattened patch beneath a tie is mechanical injury. Loosen or remove the binding before it cuts farther into the leaf, and allow air to reach the crowded bases. If the mark is moist, darkening or expanding, check for trapped water and decaying tissue.
• Concealed pests: Mealybugs and scale can sit between touching rods where wiping misses them. Look for white wax, insects beneath liftable covers, sticky residue or sooty mould. Separate the rods enough to expose every surface. Use a control whose label covers the pest on indoor ornamentals, and follow its timing for eggs or young insects that appear later.
• Yellowing or deep wrinkles: Probe the middle of the pot. If it is dry and the base remains firm, soak the rootball evenly and let it drain. If it is still wet, inspect for root loss and move sound pieces into an airy mix. Extra water cannot compensate for roots that no longer function.
• Pale, black or translucent areas: Bleaching limited to the brightest side suggests sudden light or heat exposure. Dark, water-soaked damage after a cold journey, window contact or draught suggests chilling. Keep the injured surface dry and watch the edge; stable dead tissue can remain, but advancing softness requires removal.

Dracaena angolensis (Sansevieria cylindrica) ‘Straight’ is toxic to people and pets

• Keep this plant away from children, cats and dogs.
• It contains saponins that can irritate the mouth and digestive tract.
• Chewing may cause drooling, vomiting, stomach pain, reduced appetite or weakness. Contact a veterinarian or medical professional if symptoms develop.

Why is Sansevieria cylindrica now called Dracaena angolensis?

Dracaena comes from Greek drakaina, meaning a female dragon. Angolensis means ‘from Angola’.

Carl Linnaeus established the genus Dracaena in 1767 in Mantissa Plantarum, page 9; Domenico Vandelli had proposed the name.

Élie Abel Carrière first described it as Sansevieria angolensis in 1861 in Revue Horticole (Paris), volume 10, page 447; Friedrich Welwitsch had proposed that name. James W. Byng and Maarten J. M. Christenhusz later placed it in Dracaena as Dracaena angolensis in 2018 in Global Flora, volume 4, page 64.

Sansevieria remains common in horticulture. Pei-Luen Lu and Clifford Morden showed that it belongs within Dracaena in a 2014 DNA study in Systematic Botany, volume 39. Kew’s World Checklist treats Sansevieria cylindrica as a synonym of Dracaena angolensis.