Try looking at an aeroponic propagator on eBay and copying using bucket and little basket with sponges etc and "mist maker", it's cheaper that way @latebloomer . I also put fish tank heater in water to keep around 28'c and place plastic done over top. Works with almost any cuttings 90%
Beautiful Bougainvillea "Mini Thai" in flower
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Love it
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Fabulous exotic pic. Brilliant! Well done geeza!