Grammatophyllum Orchid – Jumbo Grand - 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.
• Maintain good air circulation to prevent fungal issues.
• 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.
• 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%.
• 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.

🌿 Fertilizer Guidelines

• Growing Season: Feed consistently with a balanced NPK (20-20-20 or 15-15-15) fertilizer at half the recommended strength.
• To Encourage Blooming: A high-phosphorus fertilizer (e.g., 0-52-34) can be used after a brief dry period.

📏 Size & Dimensions

• Potting & Media: Use a coarse, well-draining orchid mix containing materials like bark, charcoal, and sphagnum moss.
• They 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 'Jumbo Grand' variety is known for its robust and potentially large growth habit.

🌍 Origin

Grammatophyllum orchids are native to tropical and subtropical regions, typically found in the canopy of Southeast Asian and Indian forests.

❓ Frequently Asked Questions

Q: What are the ideal light conditions for a Grammatophyllum Orchid?
A: Grammatophyllum orchids require bright, filtered light, similar to Cattleya. Morning sun is best, and protection from harsh midday sun is crucial to prevent leaf scorch.

Q: How often should I water my Grammatophyllum Orchid?
A: During the active growing season (spring to early fall), water frequently and heavily, allowing the potting mix to nearly dry out between waterings. Reduce watering in cooler winter months.

Q: What kind of potting mix is best for these orchids?
A: A coarse, well-draining orchid mix is ideal, incorporating materials such as bark, charcoal, and sphagnum moss. They also prefer to be slightly pot-bound.