Hippeastrum culture

Diana Chapman rarebulbs@suddenlink.net
Wed, 12 Jun 2013 07:06:07 PDT
I have modified some of the cultural advice posted yesterday and added 
some tips on specific species.  I will add to this in the future.

I have had people ask me how I keep my Hippeastrums so healthy.  I must 
emphasize the yearly repotting and cleaning.  We repot all the bulbs in 
winter, clean the bulbs, removing any dead tissue, dead roots, and all 
the outer dry tunics, scraping off dead material from the basal place.  
Sometimes I dust with sulfur when I do this, otherwise not.  The pots 
are washed, and the benches washed also, and the bulbs repotted in fresh 
material with the old potting mix discarded.  I used to use fungicides, 
but have not had to for the past two years.  I keep my bulbs much drier 
than most bulbs.  The only problem I have had with rots is when the 
medium is too moist. There are some species that like moisture (H. 
blumenavium, but maybe it's not a Hippeastrum after all!).  Old potting 
mix gets compacted, fungal disease can build up, so the repotting is 
very important.  It is a very big job, and my helpers and I do it in the 
winter, but my collection is very valuable to me.

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