While not
technically a vegetable
tomatoes
are usually the most widely grown and rewarding
vegetables in your backyard garden. Tomatoes
are technically a fruit, however, they belong in the vegetable
patch.
Tomatoes vary in size from the tiny and
sweet cherry style tomatoes to big juicy and meaty beefsteak
tomatoes weighing more than a pound.
This is great for gardeners as it gives us so many options of different varieties to grow. Tomatoes
are
warm-season plants and should be transplanted only after danger of
frost has passed. Temperature is an important factor in the production
of tomatoes,
which are particularly sensitive to low night
temperatures. Blossom drop can occur in early spring when daytime
temperatures are warm, but night temperatures fall below 55°F
as
well as in summer, when days are above 90°F and nights above
76°F.
Planting
Suggestions
A home gardeners tomato crop
begins with compact vigorous
health seedlings 5 to 7 weeks old, grown in 4" or larger growing pots.
Growing your own seedlings insure quality and varieties not
commercially available. However, if you decide to buy your seedling
from a commercial source, buy early, compact plants growing in 4" pots.
If the seedlings are grown to normal transplant size in small pots they
will not perform well. We've grown a lots of tomato
varieties
over the years. I sow our seeds in flats indoors during winter. I start
my seedling in mid January in the Greenhouse. Sow the seed about 1/4"
deep in your soil. The seeds should be started about 6 to 8 weeks
before your average last frost date in your zone, or your planned
transplant date. Make sure the seed starting mix is a light sterile
soil mix with a liberal portion of Perlite or Vermiculite to maintain
moisture. I always plant twice and as many seedlings as I will need.
The extras are sold to offset the cost of growing my seedlings and give
some away to friends. During the day, keep the seedling flats next to a
sunny window after they have germinated. Move to top of the water
heater or refrigerator at night if you do not have a greenhouse. A
heated greenhouse will produce ideal, controllable growing conditions.
I also use supplemental overhead florescent lighting. Here in Southeast
Texas our winter days are too short to produce healthy plants. Never
allow your lights to burn more than 16 hours per day. A cheap
electrical timer is the key to success here. Seedlings must be allowed
to have a period of rest to grow properly. Hang your lights
1½
inches above the tops of the seedlings. This will prevent the seedling
from becoming leggy. Raise the light suspended by a chain as the plants
grow. Do not allow the soil to dry out. Feed seedlings every other
watering cycle. I prefer feeding my young seedlings with Fish Emulsion
or liquid seaweed. If you notice your seedling leaves turning purple
this is the result of phosphorus deficiency.
Harvesting
and Handling
All tomatoes
tend to have a purple coloring to the
young stem but watch the leaves. The colder growing conditions prevent
adequate absorption of phosphorus. Ten days after germination
transplant the seedlings into individual 2" growing pots. Clip all the
leaves 1" below the top of the plant. Replant to the maximum depth the
pot will allow. Pack the soil around the stem lightly to make good
contact between soil and root ball. The additional plant stem buried
into the soil will produce more roots making a healthier plant.
Fertilize with Fish Emulsion or Liquid Seaweed at this time. Two weeks
later transplant the seedlings into larger 4" pots, repeating the
preceding potting method above. I am a firm believer in growing
seedlings in large growing pots. Tomatoes
can be severely
stressed by allowing them to become root bound. Seedlings grown to
transplant size in 2" pots will never perform as well as those grown in
4" pots. Two weeks prior to transplanting in the garden bed clip off
all but the top 1/3 of all leaves from the stem. This will allow the
wounds to heal before transplanting into your beds. This is done to
allow deep planting in your garden beds without exposing the wounds to
deadly soil borne diseases such as Verticillium wilt or Fusarium wilt.
Planting resistant varieties will help prevent this disease as well.
Planting seedlings deep will allow the roots access to moisture well
below the normal rain runoff. Brushing the tops of the tomato seedlings
back and forth helps to produce the Harmon Cytokin, which promotes
stronger stems. A gentle breeze outdoor produces the same effect
naturally. This practice is encouraged throughout the life of the
plant.
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