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Blue Vanda
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Blue Vanda

Vanda coerulea

One of the rare true-blue orchids, with tessellated sky-blue petals.

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Waterhigh

Daily soaking of aerial roots

Lighthigh

Very bright light, some direct sun

Foodhigh

Weak fertilizer with every watering

Temp

55-90°F

Humidity

70-85%

Origin

Himalayas, Burma

Special care:Grow bare-root in slatted basket — roots must breathe.

About Blue Vanda

Researching Blue Vanda

Care guide

Potting medium

Best grown bare-root in open wooden baskets — no medium.

Repotting

Rarely; only the basket when it rots.

Bloom season

Multiple times per year in warm conditions.

Bloom longevity

3–6 weeks per spike.

Growth habit

Monopodial with thick aerial roots that photosynthesize.

Propagation

Top cuttings with aerial roots; allow to callus before remounting.

Pests & prevention

Thrips on flowers, spider mites in low humidity.

Signs of trouble
  • Silver-grey roots not turning green when watered → underwatered
  • Yellow leaf tips → fertilizer salt buildup; flush monthly
Grower's tips
  • Soak the entire root mass for 15 minutes every morning in summer.
  • Vandas crave the brightest indoor light you can give them, just shy of leaf burn.

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