ONIONS AND LEEKS
The allium family
cover garlic, shallots, spring onions, pickling onions and leeks as well as
onions.
However it is the
onions and leeks that are the most popular. Most allotment plot holders will
grow a few as they are not too difficult and are very popular in the kitchen
almost on a daily basis as they can be used in so many different ways. As a
healthy food crop they are just about the top of the list as they are packed
with vitamins, minerals, dietary fibres and antioxidants.
They all grow best
in rich well drained soil in a sunny location. During the winter digging
session I allocate a very generous amount of compost to them, then about a
month before planting the land gets a wee dusting of lime as they do not like
an acid soil.
Onions
They both need a
long season to grow so it is usual to give them an early start. Some onion
types can be autumn sown and planted to overwinter then give an early harvest.
Sets are also available for autumn planting. If you are into huge onions for
show you will most likely be growing Kelsae which should be sown at the end of
January. However, you will need to keep it warm and in the light to maintain
sturdy growth. Over the years I have grown many varieties, but once you get the
one that suits you best you tend to stick with it till someone shows you a
better one. My favourite for the last few years has been Hytech. It is easy to
grow from seed, is very tasty, and gives large onions that store well into
spring the following year.
I sow my Hytech seed
in cellular trays, dropping one to three seed per cell at the end of February.
After watering in these are kept indoors in a dark warm place to germinate.
When shoots appear they will go into a light warm windowsill for a fortnight
before they get transferred to my cold greenhouse. Once they are hardened off
they are quite tough so no need to mollycoddle them.
They will get
planted out on the allotment about the end of April. I plant in rows a foot
apart spacing the cellular grown plants about four inches apart. If cells have
two or three seedlings per unit do not separate them, as they are quite happy
even if a wee bit crowded along the row.
During summer keep
them weeded and try to avoid any watering unless the weather is really dry,
otherwise white rot fungus might infect them. If it appears remove any infected
plants immediately.
Towards the end of
summer allow the onion tops to bend over naturally while they ripen up. Once
the leaves begin to wither lift them and dry them off in the sun before
cleaning and storing in nets or tied up in ropes. The land vacated from the
onions can now be sown with autumn salads, planted with spring cabbage or
cauliflower Aalsmeer or a green manure to help increase fertility.
Leeks
I sow my leeks a wee
bit later than the onions as I sow direct outdoors once the soil has warmed up
about mid March. Using my tried and well tested Musselburgh variety, which must
be two hundred years old, germination is good and soon I have a sturdy row of
seedling six to nine inches tall and ready for transplanting. After carefully
lifting the young leeks they get topped and tailed before planting. Prepare
furrows spaced a foot apart and a few inches deep then dibber in wide holes
about six inches apart. Drop in the seedlings and water the row to settle them
in. As they grow the rows slowly earth up with hoeing to create a longer
blanched stem.
They are ready to
use from autumn and should last well into spring.
Wee jobs to do this week
Bare root trees,
shrubs and roses can still be planted for a few more weeks while they are
dormant. However container grown plants can be planted just about all year
round, but keep them well watered in the growing season.
Once snowdrops and
aconites have finished flowering they can be lifted and replanted if the drifts
are getting overcrowded. They still have time to continue growing and get
settled in. If either are forming seeds these can be scattered as they both
spread and multiply easily from self sown seeds.
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