Vanda with Black Spots?

[birdwomn]

I have several vandas that I got from a reputable vanda grower about 3 weeks ago. The three smaller ones have developed some black spots on the leaves.

Location: west central Florida, near the coast

Environment: outdoors, very dry conditions (for Florida), some cool snaps (down to 50s at night) but mostly quite warm

They did not have much to the roots when I got them and I have been watering them at least once a day, often twice.

I am not sure whether to be worried or not.

Note: I looked at several other posts about black spots on vandas and am unsure about these still.

[Roberta]

I don't see any issue. Maybe the low temperatures, combined with "shipping shock". A lot "cleaner" than many of my plants, I don't worry about anything that isn't spreading.

[Lil Duck]

Those look like anthocyanin spots, a sign of high light. You don't need to move the plant until it is completely purple or if it starts burning.

[estación seca]

Motes has written Vandas may develop red spots and coloring during cool weather when they are magnesium deficient. Add some Epsom salts to your fertilizing regimen once a week. A tablespoon / 15 ml of powder in a gallon / 3.78 liters of water will work. He wrote it can take months to replenish magnesium stores.

[birdwomn]

Great! Thanks for the information, everyone! I just wanted to be sure I didn't have a problem on my hands.