Grammatophyllum Orchid – Yuan Nan Tiger Variety - Assam Orchids

🌺 Introducing the Grammatophyllum Orchid

Make a bold statement in your collection with the Grammatophyllum Orchid, sourced from Assam Orchids. Known for producing some of the largest orchid specimens in the world, Grammatophyllum orchids feature robust pseudobulbs and long arching sprays of strikingly patterned flowers. They are low-maintenance, resilient giants that add drama and tropical splendor.

💚 Care Instructions

• Grammatophyllum orchids are relatively low-maintenance but require specific conditions to thrive and bloom well.
• Temperature & Humidity: These plants thrive in warm, humid environments.
  • Daytime temperatures should range from 22°C to 30°C (72°F to 85°F).
  • Nighttime temperatures should have a slight drop to around 18°C to 24°C (65°F to 75°F) to encourage flowering.
  • Humidity levels should be maintained between 50% and 70%, with good air circulation to prevent fungal issues.
• Fertilizer: Feed consistently during the growing season with a balanced NPK (20-20-20 or 15-15-15) fertilizer at half the recommended strength. A high-phosphorus fertilizer (e.g., 0-52-34) can be used to encourage blooming after a brief dry period. Flush with clear water monthly to prevent salt buildup.

☀️ Light & Water Needs

• Light: They require bright, filtered light, similar to Cattleya or Dendrobium orchids. Morning sun is ideal, while protection from harsh midday sun is necessary to prevent leaf scorch. Healthy leaves should be a lime-green color.
• Watering: During the active growing season (spring through early fall), they need frequent, heavy watering, allowing the potting mix to approach dryness between waterings. In the cooler winter months, reduce watering frequency. The large pseudobulbs act as water storage, so they should remain plump.

📏 Size & Dimensions

• Potting & Media: Use a coarse, well-draining orchid mix containing materials like bark, charcoal, and sphagnum moss.
• These orchids prefer to be slightly pot-bound. Large specimens are often best grown in wire or wooden baskets due to their extensive root systems.
• Repot every 1-2 years, ideally in the spring, when the medium starts to break down.
• This is a mature Grammatophyllum orchid, suitable for baskets or large pots.

🌍 Origin

• Grammatophyllum orchids are native to tropical and subtropical regions, typically found thriving in the canopy layers of Southeast Asia.

Frequently Asked Questions

Q: What are the light requirements for Grammatophyllum orchids?
A: Grammatophyllum orchids thrive in bright, filtered light, similar to what Cattleya or Dendrobium orchids prefer. Morning sun is beneficial, but they need protection from intense midday sun to prevent leaf burn. A healthy plant will have lime-green leaves.

Q: How often should I water my Grammatophyllum orchid?
A: During their active growing season (spring to early fall), water them frequently and heavily, ensuring the potting mix almost dries out between waterings. Reduce watering significantly in the cooler winter months. Their large pseudobulbs store water, so keep an eye on them to ensure they remain plump.

Q: What is the ideal potting mix for Grammatophyllum orchids?
A: A coarse, well-draining orchid mix is ideal, composed of materials like bark, charcoal, and sphagnum moss. These orchids prefer to be slightly pot-bound, and larger plants often do best in wire or wooden baskets due to their expansive root systems.