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This Convolvulaceae
was given this name by Lam. in 1792, and comes from the central part of
America. Give it a well-drained soil, keep it moist and keep it out of
the worst sun. The turnip will grow to 10 cm in diameter, 20 cm in length,
the vines op to 4 meters. The flowers are pink, and it can be reproduced
by cuttings as well as by seeds. My girl-friend bought it for me in Copenhagen 2000.
If you really want to know: Purdue
University
Unfortunately, I
lost the first plant, which isn't that unusually. After a couple of years, it lost the caudex, and
it doesn't seem like it will form a new. A known "error" by
collectors, it seems to live only one or
two years, then it needs to be replaced by a new bulb. The potatoes will
only form under ground.
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