N. truncata tagged "lowland," but species spans 0–1500m. Can you grow it as highland/intermediate? Will green leaves turn red?
Yes—truncata is highly adaptable. Lowland plants thrive in highland conditions and vice versa. "Lowland/highland" are guidelines, not absolutes. It's one of the easiest Nepenthes but slowest growing.
Color is genetic. Green truncata won't turn red in highland conditions unless it has the genes. No observed case of green lowland truncata reddening in highland culture.
Grow it in your easier conditions. Patience—this species tests it.
Leaf Deformities on Nepenthes truncata: Cosmetic, Not Critical
Nepenthes aristolochioides Temperature Needs: Cool Nights, Warm Days
Identifying Unknown Nepenthes: truncata and a Hybrid
Nepenthes truncata Slow Acclimation: Winter Wilting, Bumps, No New Growth Normal
Two Unidentified Nepenthes: N. ventrata Clone (deRoose Alata) and Dark N. sanguinea
Ultra-Highland Nepenthes: Temperature Demands and Coir for Seed Germination
Can Nepenthes Vines Root If Buried? Slow but Possible
Growing Lowland Nepenthes Hybrids Outside a Terrarium
Repotting Nepenthes: When It's Needed and Why Annual Repotting Isn't Mandatory
Charcoal in Nepenthes Mix—Unnecessary and Potentially Harmful
Orange Coloration on Nepenthes truncata: Light-Induced Pigment vs. Fungal Rust Spot
Identifying Nepenthes × ventrata (deRoose's Alata) and Pitcher Maintenance
Choosing and Growing Nepenthes: Sanguinea, Miranda, and Alternatives
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