TOMATOES
It’s that time of
year again when all keen gardeners and allotment plot holders with a greenhouse
get quite excited about this year’s challenge of growing better tomatoes than
last year. Tomatoes take priority from most other crops under glass as
the
reward of fresh produce over the summer season makes the effort very
worthwhile.
Beef steak tomatoes |
Good varieties to
grow
Every year new
varieties appear so we all like to try something new, but still stick to some
of our tried and tested successful varieties. In my Dundee greenhouse my hard
to beat maincrop remains Alicante though others swear by Shirley, and my best
red cherry type is Sweet Million, and Sungold my best yellow cherry. This year
I have added Yellow Delight to my yellow cherry types and Red Cherry to compete
with Sweet Million. I don’t usually go for the plum or beefsteak tomatoes but
this year I will try out Marmande, a large fruited beefsteak type with few
seeds. However seed catalogues list a huge range of varieties so every year you
can try out a couple of new ones
to put to the test. For those lacking a
greenhouse it is worth trying a bush tomato such as Tumbler, Montello,
Peardrops, Hundreds and Thousands or Tumbling Tom in pots plunged into growbags
(two to a bag) or in a hanging basket. Up north it may be best to select a
sheltered south facing wall to give them some warmth and protect them from cold
fierce winds.
Alicante tomatoes |
Culture
Tomato Ilde |
Sow seed in early
March in shallow seed trays then about three weeks later they should be ready
to prick out into small pots. Grow these for another couple of weeks then
transplant into bigger pots. Wait till the first flower on the first truss has
opened as a guide to when to plant into their final positions. They can be
grown in large pots, growbags or border soil in a greenhouse or outdoors if
sheltered and against a south facing warm wall. If using the border soil in a
greenhouse there is a chance of getting bacterial wilt disease after a few
years. However you can dig out the infected soil, sterilise the border and
replace it with fresh soil. This is very hard work, but a great exercise and
growing tomatoes in soil results in a full flavoured crop that is hard to beat
when picked and consumed fresh off the vine.
Cherry tomatoes |
Bush and trailing
varieties are left to grow naturally, but the rest are grown as upright cordons
supported on canes or strong string tied at roof height to a strong support as
there is a lot of weight once they all get into full cropping. Remove all
sideshoots carefully as they grow and give the cordons a daily wee shake to
assist self pollination. Keep water off the foliage and give plenty ventilation
to keep fungal diseases at bay. Start feeding with tomato fertiliser as the
first truss fruits begin to swell and continue weekly. Keep the plants well
watered to prevent blossom end rot due to calcium deficiency as this mineral
needs moisture to carry into all parts of the plant.
Cherry tomatoes |
Cropping and use
Allow the fruit to
ripen up fully before picking to gain the maximum flavour. Fresh tomatoes fully
ripe in a summer salad are just heavenly and the red and yellow cherry tomatoes
sitting in a bowl on the table are hard to resist when walking by. Even when
crops are at their peak in mid season there is always a use for some tomatoes.
A bacon, egg and mushroom fry up needs some tomatoes, then pasta is enhanced by
adding tomatoes and they are almost essential on a pizza. As the cropping glut
continues surplus can be skinned for a delicious tomato soup. After this
surplus can be frozen without any preparation to be used as required till the
following years crops arrive.
Sowing courgettes and pumpkins |
Wee jobs to do this week
The first week in May is my traditional time to sow courgettes and pumpkins
in the greenhouse.I sow them in shallow wide pots then after germination, prick them out individually into small pots. They will get potted up again after a couple of weeks as they grow fast and should be ready to plant out early in June when all danger of a late frost is passed.
END