Mason's Congo Snake Plant
Sources last read 14 September 2026.
Not yet rated How forgiving it is has not been judged here yet.
Also called Shark Fin, Shark Fin Plant, Shark Fin Snake Plant, Whale Fin Dracaena and Whale Fin Snake Plant.
Mason's Congo Snake Plant is toxic
- Not assessed for cats. This plant is not on the ASPCA list. That is not a finding of safety: none of the sources read for this site gives an answer either way. Treat it as unknown.
- Not assessed for dogs. This plant is not on the ASPCA list. That is not a finding of safety: none of the sources read for this site gives an answer either way. Treat it as unknown.
- Toxic to people. Toxic to people (low severity). NC State Extension
What the sources say about its care
Sources file this plant under other names: Sansevieria masoniana. Citations below point at the name its source uses.
- Light
- Partial ShadeNC State Extension · read 13 September 2026
- Water
- Good Drainage, Moist, Occasionally DryNC State Extension · read 13 September 2026
- Humidity
No source read publishes a humidity figure for any plant on this site. What follows is general guidance for foliage plants.
ASHRAE recommends indoor relative humidity between 30% and 60% 30–60%Penn State Extension · read 13 September 2026- Soil
- High Organic Matter, Sand, Shallow Rocky; pH Acid (<6.0), Neutral (6.0-8.0)NC State Extension · read 13 September 2026
- Toxic to cats
- Not on the ASPCA list. That is not a finding of safety.ASPCA · read 13 September 2026
- Toxic to dogs
- Not on the ASPCA list. That is not a finding of safety.ASPCA · read 13 September 2026
- Harmful to people
- Toxic to people (low severity)NC State Extension · read 13 September 2026
Routine care
- Watering
- Highly drought tolerant; let the growing medium dry before watering again.NC State Extension · read 13 September 2026
- Repotting
- Repot once roots fill the pot or come out through the container's drainage holes.NC State Extension · read 13 September 2026
- Propagation
- Leaf cuttings or division can be used for propagation.NC State Extension · read 13 September 2026
- Pests and diseases
- Can be troubled by fern scale, banded greenhouse thrips and longtailed mealybug.NC State Extension · read 13 September 2026
Move something and watch
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Photographs
About the plant
- Native range
- DR CongoWorld Checklist of Vascular Plants, June 2026 release, CC BY.Kew WCVP · read 13 September 2026Democratic Republic of the CongoNC State Extension · read 13 September 2026
- Climate
- seasonally dry tropicalWorld Checklist of Vascular Plants, June 2026 release, CC BY.Kew WCVP · read 13 September 2026
- Growth form
- rhizomatous geophyteWorld Checklist of Vascular Plants, June 2026 release, CC BY.Kew WCVP · read 13 September 2026Herbaceous Perennial; habit erectNC State Extension · read 13 September 2026
- Size
- Height 36–60 in; width 12–24 inNC State Extension · read 13 September 2026
- Flowering
- Flowers white; blooms in summerNC State Extension · read 13 September 2026
Other Dracaena
DracaenaBrown tips on the newest blades first
Lucky bambooCrisp margins that appear in winter
Snake plantBlades hang and feel thin between the fingers
African SpearSourced care, difficulty not yet judged
Dracaena bacularisSourced care, difficulty not yet judged
Dracaena reflexaSourced care, difficulty not yet judged
More of the Asparagaceae family
Asparagus fernBrown brittle margins with a green centre
Cast iron plantBlade tips go crisp and brown
HyacinthFlowering stops while the foliage carries on
Ponytail palmBlades hang and feel thin between the fingers
Spider plantEdges of the blades brown while the middle stays sound
Spineless yuccaBlade tips go crisp and brown
Plants with similar care
- No photograph yetAir PlantSourced care, difficulty not yet judged
- No photograph yetAir PlantSourced care, difficulty not yet judged
Amazonian Zebra PlantSourced care, difficulty not yet judged
AnanasSourced care, difficulty not yet judged
- No photograph yetAutumn Rain-lilySourced care, difficulty not yet judged
- No photograph yetAztec LilySourced care, difficulty not yet judged
Sources
- ASPCA · read 13 September 2026
- Kew WCVP · read 13 September 2026
- NC State Extension · read 13 September 2026
- Penn State Extension · read 13 September 2026
What this does not cover
The figures above are what published sources say, not measurements of the plant in your room. They say nothing about your pot size, your water, the season, or how far from the glass the plant stands, and those decide more than any figure here does.
Humidity has no species figure because no source read for this site publishes one, and the only temperature published for this plant is a cold floor. The simulator fills those gaps with general figures for its kind of plant, marked as general and listed on how we read sources. Where a toxicity row says the plant was not assessed, that is the absence of a finding and not a finding of safety.
If something is already wrong, the diagnosis tool asks about the soil, the window and the watering, which is where the answer usually is.