Stone

Not really. Most orchids apart from the ''true epiphytes'' such as Phalaenopsis or Vanda, rely on the nutrient bank in humus which has...

You said.... ''No potting medium is “buffering” the applied solution that quickly,'' I said.... ''Of course they take up buffered...

Eh? Roots take up water as long as it is removed from their leaves - which is almost constantly. Of course they take up buffered...

Growing hydroponically - which is what you are talking about - (There is no such thing as ''semi hydro''. If your plant relies on...

I think it might be too late to save it. Once the rot gets into the rhizome it is almost impossible to stop if there are no unaffected...

Fe In hydroponics Fe can be very unstable. The best is the FeEDDHA chelated iron because the FeEDTA breaks down quickly at pH values...

No one said it was.

You would have to be pretty sensitive to take the word ''crazy'' (in this context) literally. It was neither insulting nor narrow...

When you grow hydroponically, your fertilizing has to be spot on since there are no colloides for cation exchange and buffering. No...

Yep. It's usually a result of light being on the higher side of what they can handle and/or environmental conditions that trigger their...

Speculation... Flowering is triggered by hormone secretion driven by environmental factors. Therefore, it may be that when our plants...

That depends on your water, your fertilizer and your potting mix. That is an unqualified, sweeping comment by those two authors. Eg., If...

There are 2 kinds of epiphytic orchids. The type which grow only on bark like Phalaenopsis or Vanda etc., and those which grow in...

True but you still need to watch the P.

Charles, as is done with hundreds of thousands of container growth plants in soilless mixes around the world every year, calcium and...