The message
from "Bob Hobden" contains these words:

Whitefly? You growing your's inside?
We grow ours outside against a S. facing wall from March to October
and have
never suffered from Whitefly. Scale Insect is always a problem though but I
blast that off with a high pressure jet of water from the sprayer
going from
top to bottom checking every leaf and branch.

Ordinary household flyspray sorts them out in very short order.

--
Rusty
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The message
from "Bob Hobden" contains these words:

Once purchased the first thing most need is to be repotted into a larger
pot, we use ericaceous compost with added bark chips to aid drainage and
without adding too much weight. Strictly speaking ericaceous compost is not
needed but all Citrus prefer an acid soil and it becomes important if you
water with hard tap water.
Anyway, the old gardeners always repotted into ericaceous compost if a
citrus tree looked sick.
Citrus are gross feeders so feed with every other watering, specialist
feeds
are available, we also use a feed of Sequestered Iron early in the
season to
get them going, and a handful of chicken manure pellets each too.
Never let your citrus sit in water, you will kill the roots, so avoid using
a water tray if at all possible, just let the excess water run through and
away.
Plenty of sun during the summer months, outside against a S. facing wall is
good, and somewhere very light and cool but not frosty during the winter is
all they ask.

I've got one three-year-old lemon grown from a pip, and it's five feet
high, and bushed-out to match. Covered in long, sharp thorns.

It doesn't get fed a lot, though there is bonemeal in the gritty compost
I used (ten-gallon plastic bucket's its home). I've another lemon 'tree'
from the same fruit, and that's not even a foot tall.

IIRC Bob Flowerdew reckons you have to wait twenty or thirty years for
one grown from seed to fruit. Fruiting lemon trees are from cuttings
which are already 'programmed' to flower.

--
Rusty
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