Quote:
Originally Posted by Brian1212
All hydroponics is is growing without the use of soil. Lava rock, clay pebbles, perlite, coco coir and bark are soil-less. As such I would argue that most orchids are grown in hydroponic media by default and there is no difference growing orchids in clay pebbles watered by hand to plants grown in hydroponic setups watered by timers.
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Hi there Brian. I thought that hydroponic
media is pretty much just
water (plus some nutrients). The water is the media. Roots fully submerged all of the time. Media like rocks etc are just extra optional extras.
Quote:
Originally Posted by Brian1212
So yes Ebb and flow is nothing new or special, pretty much every orchid grower does it to some extent without realizing they are doing ebb and flow by hand.
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'Ebb and flow ' needs to be defined properly off course. If it's defined as a mass of water rising from below (flowing in from below, or from the side), and then later reversing the direction ------ then that would be flow and ebb (or ebb and flow). But 'watering by hand' is coming from overhead in general, may be same overall aim or goal achieved (as in wetting the media and roots).
But - on the other hand - if I purposely focus more water in some regions of the media than other regions, or if I purposely do very light watering from overhead over all of the media, then that will be quite different in terms of water coming up from the bottom and saturating everything.
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