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This is a discussion on catasetum purum within the Orchids of Other Genera IN BLOOM forums, part of the Orchid Photography category; Originally Posted by paphioboy They are actually easy since they go dormant 2-3 months of ...
Sometimes when seperating/ splitting the bulbs individually as dormant procedure commences growth will emerge on each sep bulb as opposed to just one or possibly two growths when remaining in a cluster/ group. Its not an exact science though as if anything ever is and when left in a group the plant decides to discard bulbs when it sees fit anyway when the storage of nutritients and moisture has been exhausted. IMHO a young plant with 2/3/4 small bulbs is not mature enough to split individually especially when running the risk of the divisions rotting like paphio says. It is also necessary to consider that with the catasetinae short growing period many circumstances that come along or crop up cause considerable hinderance such as root rot/ pest attack. The plant will need the reserves of its spare bulbs to carry it through to the next grow season sustaining it at all times through the dormancy beforehand. Have seen many a sellar flogging small single bulbs on trade/ auction sites and some shrivelled on brink of life. Chances of success nurturing these are lessened considerably unless you can guarantee perfect conditions such as a lab.
to cut the story short for when to water, "follow the leaves". even when the bulb is fully mature, all the leaves is there, you can still water once the media is dried. BUT if all the leaves had dropped (going into dormancy), minimal watering with them. as a general rule, just water once you notice some slight shrivelling on the PBs)
whether or not to separate a bulb after blooming, very much depends on you, but follow the leaves. generally if u prolonged repotting interval(provided you had the correct media and fertilizing program), you will ended with bigger bulbs eventually which mean more bloom per spike or even double spike or double growth subsequently.
Cheers guys..thanks for the info..very helpful and will assist me in my future plans to acquire a plant.
Such cool and interesting orchid blooms. Love these, Ian.