It makes sense to me from a Darwinian standpoint that flowering plants in an ecosystem may derive an advantage by being triggered to flower if other like species began flowering independent of photo period or temperature related flowering cues. Sort of like Keeping up with the Joneses. I am not aware of compounds that can induce flowering in plants not connected to the same vascular system. There is scientific evidence for a "florigen", though for may years the idea of a florigen molecule apparently was the source of some ridicule amongst plant physiologists. A florigen is a compound that when present in plant tissues can induce differentiation of apical meristem tissues into flowering meristem. In brief if you had 2 identical plants subjected to different growing conditions, one favorable to flowering and one not, taking tissue from the flowering plant and grafting it onto the non-flowering plant can induce "precocious" flowering in the non-flowering host plant. Pretty cool, huh? (Plant physiologists please forgive for any misrepresentation, I am actually better versed in cellular function of things without cell walls) The sand in the Vaseline is that in this case the plants have to have contact with the vascular tissues of, not just be in the immediate vicinity of a flowering plant. Having said that, I do know that ethylene in vanishingly small concentrations can induce fruit ripening, and I have always said my wife's geraniums smell funny...so you may be onto something. Now here is my theory on why my wifes collection of African Violets that had been in non-flowering vegetative growth mode for years suddenly went on a blooming frenzy shortly after the expansion of my orchid collection began to occupy the same space. The AV knew that we had discussed composting them since they had been just taking up space, and the show the orchids were putting on shamed them into a floral extravaganza. As it happens the geraniums that will not die also perked up after the arrival of the orchid grow-cart.

The correct name is Arachnis flos-aeris 'Gracilis' and it is a species orchid from South East Asia. Maybe you would be better off tying it securely to the Eastern side of an appropriate rough barked tree....but then again, you do not have a tree. Try putting it into the basket. The literature saying that it likes to climb, so maybe provide a tree-fern totem pole or failing that see if it like to trail. Good Luck.

I have this one as well. Took quite a while to find a place where it got the right amount of sun before it flowered. They're so easily propagated from cuttings I now have them all over the place, but mostly in too much shade and not flowering.

Getgoing always gives great help. With the soaking of water. I do mines twice a week. I soak always mine in warm water for at least 15 minutes and then soak again in fertilized water, preferably rain, bottle water or tap if it's good quality. I drain the water out and stick it back in it's spot. I have one growing in partial hydro loving it. I filled the glass half way with volcano stones and clay ones and let the roots reach for it. I don't leave the roots sitting in the rocks in water. I place them under the roots and rest the plant on top.