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Opuntias - Prickly Pears
The Opuntia
family of Cacti includes around 200 species that grow almost
everywhere on the globe, as far north as southern Canada and south to
the tip of South America. They can grow up to giant 30 foot specimens,
or they can be tiny miniature plants, but all will bear fruit of some
sort, although some are obviously more suitable for eating than
others. Plants like Bunnies Ears or Opuntia Microdasys are often sold
in garden centres, as are many other varieties of Opuntia, because of
their attractive soft white, almost furry looking spines. Others like
the Indian Fig Cactus, or Opuntia Ficus Indica, have long been grown
as regular crops, in warmer climates, for their harvest of tasty 2-3
inch fruit.
Not
only are Opuntia plants prickly, but so are their fruits, hence the
name of Prickly Pears. Fruits must be handled very carefully to remove
the spines before it is possible to eat the soft flesh inside. There
is an old family tale that came from my father who was in the Middle
East in the Second World War. The soldiers of the time were always on
the look out for food to supplement their meagre rations and they came
across the Prickly Pear in full fruit. The fruit was too tempting, so
my father selected one and wrapped it in his handkerchief so he could
hold it and cut it down. Then he carefully unwrapped it, peeled it and
ate it. Not thinking he simply put his handkerchief back in his pocket
minus the prickly pear! He did not make that mistake again!
Opuntia’s
are plants that do need warmth, but in fact dryness at certain times
of the year is more important and if kept dry enough many varieties
will tolerate quite low winter temperatures. Being dry over Winter
also means keeping any snow from settling on them for long periods as
well as keeping their roots dry. With milder Winters in the UK it
should be possible to grow certain varieties to fruiting maturity,
although the planting site would need to be carefully selected and
prepared with bucket loads of grit added to the planting mix so that
the plants can cope with our notoriously wet Winters and general
climate.
Opuntias
spread rampantly in perfect conditions and some varieties have even
been banned in certain countries as they have become a pest. In
Australia they went further and resorted to introducing a biological
control in the form of the Cochineal Insect and the Cactoblastus Moth
to control and reduce the numbers of naturalised plants.
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