Re-pot moth or­chids

Gardening Australia - - YOUR PLANNER -

Moth or­chids (Pha­la­neop­sis spp.) need re-pot­ting reg­u­larly, and spring is the best time to do this. Young, small plants should be re-pot­ted an­nu­ally, us­ing a fine-grade bark. As they gain some size, pot them in a medium-grade bark or coarse-grade per­lite (bead size 3–6mm), or a blend of the two. This should be done every two years, or when the medium de­com­poses and be­comes too wet. Soggy mix rots the roots.

Gen­tly re­move old mix from around the roots and trim off any roots that look soft or dam­aged. When you’re pot­ting, place some mix at the base of the new pot and then gen­tly spread the roots over the mix be­fore back­fill­ing. If you’re keep­ing your moth or­chid in­doors, place it near a bright win­dow, but not in di­rect sun.

Give the mix a good soak­ing, then don’t water again un­til it’s al­most dry. Once a week should be about right for now, then in­crease to twice a week in sum­mer, even daily if needed when the tem­per­a­ture soars. Mist­ing the fo­liage on hot days pro­vides the type of hu­mid­ity they like, and giv­ing them a weekly ap­pli­ca­tion of liq­uid or­chid fer­tiliser keeps them grow­ing strongly.

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