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Date: Thu, 27 Nov 1997 17:59:29
-0600 (EST)
From: Roger
Sieloff ISDH <sieloff@doe.state.in.us>
To:
cacti_etc@opus.hpl.hp.com
Subject:
Rebutias for everyone!
Message-ID:
<Pine.PTX.3.94.971127161007.6599A-100000@ideanet.doe.state.in.us>
Greetings
from Indiana - state of boredom..
******************
How to Grow Rebutias in the Tropics *******************
Although it is
true this genus needs a cold winter rest to keep it
healthy, one CAN grow these cacti in the rain forest!
First of all, I make the assumption that since the reader
has access to a computer, then there exists access to
that other piece of technology most westerners could not
survive without - a refrigerator. If refrigerators and
computers populate your local ecology then perhaps there
also exists "luxury plastic", specifically
polythene bags (we Yanks know then as "ziplock
baggies") and also, perchance, styrofoam cups.
Having enumerated
a host of synthetic species, I now turn our attention to
a few natural ones. Rebutias make such nice cacti because
they are naturally compact; they do tend to offset into
mounds after awhile, but individual heads are usually
small enough such that even after 10 year's growth, many
species fit comfortably into 6" diameter pots. Some
Rebutia offset less enthusiastically than others and an
excellent example is R. flavistyla, with orange flowers
in the spring (whenever this occurs in your locality).The
R. senilis and R. haageii "complex" is not only
dwarf, but all the cultivars offer an assortment of
flower colors as well; reds, violets, pinks, white,
yellow and glorious bicolored flowers amoungst the R.
haageii.
Therefore, my
suggestion to tropical growers is they
"overwinter" one or two Rebutias in the
refrigerator. Potted in styrofoam cups and packed in
plastic bags, the plants will be no more obtrusive than a
choice wedge of roquefort an no less sanitary than
Friday's fish dinner. All Rebutias can comfortably
tolerate temperatures down to 2 C; most can tolerate
frost as well, so simply tuck them far behind everything
else and forget about them for 6 months. The lack of
light will not bother them, but it is very important they
be absolutly dry before placing in the refrigerator. This
is best achieved by letting them dry out inside the house
for two weeks before "hibernating" them.
Periodically inspect the plants for flower buds; if these
appear, continue dormancy another three weeks and then
take the plants out, water and very gradually
re-introduce them to the sun.
Flowering will
occur (you can take them to work as the little boquets
look very attractive on one's desk) and after the blooms
fade in a week or so, growth will start and continue for
another 6 weeks. After another three months or so, dry
them out and refrigerate them for 4 to 6 months. When
activly growing, treat them like regular houseplants -
lots of water and some feeding every two weeks.
Happy Gardening,
Roger L. Sieloff
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