Asparagus is not a small plant, reaching 6ft high with bushy top growth. You
will need a sheltered spot in full sun, if grown well it tends to get top
heavy and blow over if exposed. It is a heavy feeder so you will need top
class soil mix in your tub and to top it up with manure(s) yearly. The root
system can become quite extensive and I suspect this will be your limiting
factor even with large tubs. The running roots that go out from the crowns
will probably end up going round and round inside the tub. And of course you
will have to be religious with your watering during the growing season due to
the limited water holding of even big tubs.
I reckon building a cage around plants in the ground might be better, your bed
need be only about 3 X 6 ft (depending on need) so you are not looking at the
Eiffel tower. What sort of critters must be kept out?
Asparagus seems to be a plant that takes lots of room.
The information in the " Rodale Encyclopedia of Organic Gardening"
says that "50 plants are usually adequate for a family of four, but
ardent asparagus lovers recommend tripling that amount. Planting
instructions : dig 12" wide trench 6" - 8" deep and 4' apart. Set the
crowns 1 1/2' - 2' apart." I think you would have to have one tub
for each plant since I doubt that they take kindly to being moved.
We put in 100 crowns 3 years ago. Year 1, no picking. Year 2 pick
for 2 weeks and year 3 we can pick for about 1 month. Those figures
may no be exact. We have yet to pick more than we can use. Whenever
we start getting more that we can eat, I will start pickling them and
freezing some for soup. Emeril's recipe for asparagus soup is great
since it uses the whole spear, including the tough bottom part.
A neighbor saw the asparagus bed in the fall and wanted to know what
kind of trees they were.
"Moral indignation is in most cases two percent moral,
This seems rather a lot to me. The books I have recommend 24 plants per
family of four. I have about 20 for the two of us but we are quite fond of
it. Last year we had about 6 meals off 2 year old plants (I only cut lightly)
and I expect to get three times that or more next spring.
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