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Compost: 1:1
mix of peat and silica sand for seedlings, changing to a 2:2:1 mix of charcoal,
orchid bark, and peat as plants get larger.
Watering: Typical; daily if in very coarse, well-drained compost. Cultivation Difficulty: Moderate to challenging (2-3); needs large pots to reach full size. Propagation: Cuttings are moderately difficult to root. Distribution: Borneo.1 Ecology: Grassy, open clearings and land slips; 1500-2600 m.1 |
| N. rajah lower pitcher | N. rajah leaf |
| Possessing possibly the largest pitchers in the genus, N. rajah is a magnificent plant. It is, however, rather slow growing and demanding in its requirements, and therefore should remain the province of those who have the patience and appropriate environment to ensure its successful cultivation. After growing beyond the seedling stage, it really does require warm days (25 to 30 C) and cool nights (10 to 15 C) to grow well and pitcher properly. Consistently high humidity is also essential for good growth. However, provided such an environment, with good lighting, success is likely. Plants from tissue culture will initially grow rapidly under these conditions; some of our plants have grown from 2 cm in diameter to over 20 cm in just over a year. |
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| 1C. Clarke, Nepenthes of Borneo, Kota Kinabalu, 1997, p. 120. |