Dracaena masoniana
whale fin snake plant
Central Africa — Congo; formerly {Sansevieria masoniana}
Overview
Dracaena masoniana (syn. Sansevieria masoniana) is the whale fin snake plant, growing 24–48 inches (60–120 cm) tall. Typically produces a single large paddle-shaped leaf per rhizome growth point — each leaf can reach 48 inches (120 cm) tall and 10 inches (25 cm) wide. The species name honors Maurice Mason, an English plantsman. Mottled dark and light green with irregular darker blotches in a camouflage-like pattern. Growth rate is extremely slow — single-leaf specimens may take 1–3 years to produce a second leaf from the rhizome. Same cultural tolerance as all snake plants: low light, drought, and neglect. Overwatering causes rhizome rot — the single large leaf has a massive rhizome beneath the soil that stores water and is vulnerable to saturation. Allow soil to dry completely. Formerly Sansevieria masoniana; reclassified to Dracaena spp.. Native to the Democratic Republic of Congo. Mildly toxic to cats and dogs (saponins). Propagation by division of the rhizome; leaf cuttings are possible but extremely slow and may not reproduce the cultivar pattern. The single-leaf form requires a weighted or deep pot to prevent toppling.
Native Range
Dracaena masoniana is native to Central Africa — Congo.Suggested Uses
Grown in containers of 2–3 gallons (8–12 liters) in low to bright indirect light. The single large paddle-shaped leaf suits minimalist interiors and sculptural plant displays. Use a heavy or wide-based pot to prevent toppling. Mildly toxic to cats and dogs.How to Identify
Appearance
Size & Dimensions
Height2' - 4'
Width/Spread1' - 2'
Reaches mature size in approximately 5 years
Colors
Bloom Information
Flower clusters are rare indoors. The single massive paddle leaf is the year-round display.
Detailed Descriptions
Flower Description
Greenish-white (rare indoors)Foliage Description
Mottled dark and light green with irregular darker blotches, on a SINGLE enormous paddle-shaped leaf — the 'whale fin'Growing Conditions
Sun Requirements
Requires 3-8 hours of direct sunlight daily
• Full Sun: 6+ hours of direct sunlight
• Partial Shade: 3-6 hours of direct sunlight
• Full Shade: Less than 3 hours of direct sunlight
Care & Maintenance
Care Guide
Low to bright indirect light. Allow soil to dry completely between waterings — the large rhizome is vulnerable to rot. Extremely slow-growing (1–3 years between new leaves). Use a heavy pot to prevent toppling. Mildly toxic to cats and dogs (saponins). Formerly Sansevieria masoniana.Pruning
No routine pruning. Remove only fully damaged or rotted leaves at the base. Divide the rhizome for propagation when offsets develop.Container Growing
✓ Suitable for container growing
Minimum container size: 5 gallons