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How do you satisfy the gardening
itch in the middle of winter? Easily! Start plants from seed.
Now is a great time to get a jumpstart on the gardening season.
Just a little preparation will help ensure you seed starting
success. Here is some of the equipment you'll need:
Containers
Almost any type of container
can be used to start your seedlings in, as long as it can hold
moisture and is sturdy enough to handle a wet potting mix. Gardeners
have always recycled yogurt & cottage cheese containers,
milk cartons, & even egg cartons. Whatever container you
use, make sure that it has a hole through which excess water
can drain or is porous and will eventually drain. Any sitting
water at the bottom of a container can rob growing roots of oxygen
and encourage fungal diseases.
Before filling your container
with potting mix, wash it well to get rid of any food particles.
This is especially important for containers that are reused year
after year. Certain fungal diseases, such as Fusarium, can be
spread through contaminated soil that is still hanging on to
the sides of containers. If your seedlings succumbed to any diseases
last year, make sure the containers are rinsed with a 10% solution
of bleach to kill off any remaining spores.
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Soil Mix
One of the most important factors
when starting your seedlings is choosing your potting mix. It
is often recommended to use a sterilized, soil-free starter mix
to prevent diseases such as damping-off from taking hold of tender
seedlings. I still recommend soil-less mixes to beginner gardeners
but I, myself, have started to add compost and worm casts to
my own mix. Here are a few reasons why:
First, soil-less mixes are totally
free of any nutrients whatsoever. While young seedlings don't
require fertilizers until they develop their first set of true
leaves, I find having to feed them solely through a liquid feed
quite cumbersome. |
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Organic fertilizers like compost
and worm casts release their nutrients slowly and don't burn
seedlings the way inorganic fertilizers may. Having these fertilizers
already in the potting mix means I don't have to worry about
feeding for at least 5-6 weeks. By then, I'm usually potting
up the seedlings and adding fresh fertilizer anyway.
Second, I have found that growing
seedlings with organic fertilizers in the mix tends to produce
healthier seedlings.
The organic fertilizers help
to mimic conditions in the garden where there is a multitude
of fungi, bacteria and other soil organisms. Seedlings have to
extract nutrients from the organic fertilizers just the way they
would in garden soil. In contrast, I find that seedlings fed
solely with liquid fertilizers tend to be less efficient at extracting
nutrients since the liquid feeds provide them in a highly soluble
form.
Third, the organic fertilizers
help the soil mix hold moisture for longer periods of time. Most
soil-less mixes are a combination of peat, perlite & vermiculite
and drain very quickly. They require frequent watering, especially
when seedlings grow their first set of true leaves and really
begin to transpire. Both compost and worm casts retain moisture
well and keep it available for growing roots.
Lastly, adding organic material
into the potting mix helps to stretch the mix and make it go
farther. This can be quite a cost savings, especially if your
make your own compost or raise worms yourself.
One word of caution about adding
organic fertilizers to your potting mix - remember that they
will contain a wide variety of soil organisms and your soil mix
will not longer be sterile. If you've had a problem with damping-off
in the past, i.e. you tend to overwater your seedlings, you may
want to only water your seedlings from the bottom or else stay
with a sterile mix.
Light
Have you ever tried starting
seeds inside on a windowsill and found that they grew spindly
and kept falling over? Early spring light just doesn't have the
intensity and duration that young seedlings need, forcing them
to stretch for more and more light. Most seedlings require 12-14
hours of direct light in order to keep them short and stocky
and producing healthy leaves. Therefore, artificial lights are
required early in the season.
Although you can purchase grow
lights in your local nursery or garden center, I find a combination
of warm and cool fluorescent bulbs just as effective at a fraction
of the cost. Since seedlings need high light intensity, these
bulbs need to be no more than 3-4 inches away from the top of
the plant. I attach the light ballast to the underside of a shelf
or even the underside of a table and place my seedling trays
under the tubes. If the lights are still too far away, you can
also raise the trays on boxes. As the plants grow, the boxes
can be removed so that the leaves do not touch the bulbs.
Seeds
Last but not least, gather your
seeds together and select what you're going to grow this year
and how much of each variety. If you have left over seed from
previous seasons and are not sure if the seed is still viable,
do a quick & easy germination test between moist paper towel
to see if the seeds sprout. Plant any seeds that do germinate
and discard any mould.
If you're really itching to do
some kind of gardening now, you can start the following types
of seed indoors near the end of January/early February:
Vegetables
- Celery
- Celeriac
- Leeks
- Giant Onion
Flowers
- Aquilegia
- Myostosis
- Perennial Alyssum
- Pansies
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