Alphabetical Plant Listing

Vanda coerulea (Blue Vanda)

Blue Vanda, Vanda caerulescens, Vanda coerulea delicata, Vanda coerulea f. delicata, Vanda coerulea f. luwangalba, Vanda coerulea f. rogersii, Vanda coerulea var. rogersii


Vanda coerulea (Blue Vanda) is a medium to large sized epiphytic orchid species boasting erect or suberect axillary inflorescences giving rise to large, long-lasting flowers. Blooming in the fall, the blossoms, 4 in. across (10 cm), are pale violet-blue to purple-blue, tessellated with darker purple. Stout stems carry numerous evergreen leaves, 3-10 in. long (8-25 cm). Native to China and India, Vanda coerulea is a cool to intermediate growing orchid species found on tree trunks in open woodland at elevations of 3300-5300 ft. (1000-1600 m).

  • Grows up to 30-60 in. long (75-150 cm) and 20 in. wide (50 cm).
  • Grows best when exposed to almost full sun with some partial shade, especially in midday in summer. Provide good ventilation. Leaves should be a medium green, not dark green. Dark green leaves indicate not enough light.
  • Optimum spring temperatures are 60-62°F (16-17°C) at night, and 80-84°F (27-29°C) during the day.
  • Optimum summer temperatures are 64°F (18°C) at night, and 75-77°F (24-25°C) during the day.
  • Vanda coerulea orchid needs a necessary cool period of rest in winter. Optimum winter temperatures are 44-46°F (7-8°C) at night, and 71-75°F (22-24°C) during the day.
  • Maintain adequate humidity (80-85%) from summer to fall, (50-55%) in winter and spring. Set the plant on a tray of gravel, partially filled with water, so that the pot never sits in water.
  • Water heavily during the active growth period, making sure the roots are constantly moist. Reduce watering in the fall and water sparingly in the winter .
  • During active growth, fertilize every week or every two weeks with 1/4-1/2 of the recommended dose of fertilizer for orchids.
  • Propagate by division when the plant overflows the pot.
  • Once the flowers have faded, remove the spent flower spikes.
  • Potting is necessary when the rhizome of the plant protrudes over the edge of the pot or the potting medium starts to break down. This should be done in the spring. Use a coarse medium, whether fir bar, tree fern or charcoal, and work it around the roots. Keep shaded, humid, but drier at the roots until new root tips grow. Do not overpot.
  • Generally disease free. Keep an eye out for aphids, glasshouse red spider mite and mealybugs.
  • Native to Northeast India, Myanmar, Thailand and south-west China.

Tip for reblooming

  • Vanda orchids should bloom at least once a year. If your orchid does not flower, move it to a location where it will receive more light and sun. This may resolve the problem.

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Requirements

Hardiness 12 – 13
Plant Type Orchids
Plant Family Vanda - Orchids
Exposure Partial Sun
Season of Interest Fall
Height 2' – 5' (60cm – 150cm)
Spread 1' – 2' (30cm – 60cm)
Water Needs Average
Maintenance Average
Soil Drainage Well-Drained
Characteristics Showy, Evergreen
Garden Uses Patio and Containers

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Guides with Vanda - Orchids


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While every effort has been made to describe these plants accurately, please keep in mind that height, bloom time, and color may differ in various climates. The description of these plants has been written based on numerous outside resources.


Requirements

Hardiness 12 – 13
Plant Type Orchids
Plant Family Vanda - Orchids
Exposure Partial Sun
Season of Interest Fall
Height 2' – 5' (60cm – 150cm)
Spread 1' – 2' (30cm – 60cm)
Water Needs Average
Maintenance Average
Soil Drainage Well-Drained
Characteristics Showy, Evergreen
Garden Uses Patio and Containers

Guides with Vanda - Orchids

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