My Phal has Pimples

[camille1585]

Often these spots are oedema, which is a physiological condition where a plant takes up water faster than it uses or transpires it. (e.g. well watered plant in cool humid air, which can often happen in the winter). Water pressure builds up in cells and they end up bursting, causing little lumps.

[Orchid Whisperer]

Originally Posted by camille1585

Often these spots are oedema, which is a physiological condition where a plant takes up water faster than it uses or transpires it. (e.g. well watered plant in cool humid air, which can often happen in the winter). Water pressure builds up in cells and they end up bursting, causing little lumps.

I immediately thought of edema too. Different spelling here I think, but I agree.

[camille1585]

Originally Posted by Orchid Whisperer

I immediately thought of edema too. Different spelling here I think, but I agree.

After nearly 20 years outside the US, my spelling has been affected. Too much influence of UK English (oedema) and latin language spellings (oedème in French) of words!