Get an early jump on spring

There is much satisfaction in growing your own plants from seed, but germination takes a good deal of care and attention, says Brian Minter

Getting an early jump on your spring planting.

Getting an early jump on your spring planting.

Around this time of year, millions of Canadians are leafing through seed catalogues or browsing through seed racks in garden centres. They are imagining all sorts of wonderful colour schemes for their garden and anticipating baskets of fresh produce.  All these good things are going to come from seeds.  It all seems fairly easy, but in reality, I would guess that less than 50 percent of all the seeds purchased actually grow.  This is not because the seeds are defective, even though we like to blame the seedsmen for our bad luck; it’s most often because we need a little more information on how to have success with seeds.

Today, new hybrid pansy seeds cost about 3.7 cents per seed, and hybrid tomato seeds are often over $125.00 an ounce.  If you’re interested in saving money, there is some value in knowing at least a few of the basics about seed germination.

Firstly, most of us buy too much seed.  We keep thinking that vegetable seeds are such a great investment so we buy a few extra, just in case some don’t make it. That’s like buying a year’s supply of detergent when it’s not on sale.  As a guide, many seed companies are now listing the number of seeds each packet contains, and seed catalogues are very good at indicating how many seeds there are per ounce or gram of seed. If you only need six tomato plants, why are you buying 200 seeds?

The next problem area is what to do with seeds once we have them. Some folks leave them in the kitchen, some end up in the garage, and yes, many get misplaced or lost.  The best place for virtually all your vegetable and flower seeds is in your freezer.  Not only do you know where they are, but they are also being stored at a constant temperature and humidity.  This stratifies them as well, which helps speed up germination.  If the World Seed Bank freezes seeds, I think it’s safe to do.

Timing is everything as the saying goes, and this is especially true with seeds.  There has to be a natural progression from seed germination to planting outside in the garden.  Unless you have a perfectly controlled environment in which to keep young seedlings, you must time your seeds to correspond with the readiness of your garden outside.  In other words, don’t start outdoor tomatoes until early April.

I’m also convinced that you need a cool, well-lit area in which to place your young seedlings during the early stages of growth.  Adjustable Powersmart lighting, adjustable heat and circulating fans are also important.

It takes a bit of trial and error to really achieve success with germination, but the basics are a good medium, clean starting trays, bottom heat, good light and humidity. Starter mixes are probably the easiest way to go, and if you use these mixes in plastic cell packs or seed plug trays, your success will be far better. Many seed catalogues indicate the temperature at which the best germination can be achieved, and you can provide that temperature by means of heating trays.  Keep in mind, however, that they are not cheap.

Very few seeds need to be covered with a growing mix for optimum germination.  Most seeds need to be exposed to about 12 to 16 hours of high intensity light per day.  They must, however, be kept humid.  After watering them in carefully, using very hot water and a proper watering can or misting bottle, be sure you place some clear plastic or glass on top of the trays to hold in both the warmth and the humidity.  Seeds need to be checked twice daily for moisture.  Germination time will vary with the type of seed, but as soon as they sprout, immediately remove the covers, cool them down, provide lots of light and good air circulation and keep the humidity up.  A drenching with an organic sulphur-based fungicide, like ‘Defender’, will help prevent disease.  Maintain the soil on the dry side once the seeds are up and away.

Your greatest challenge will be to keep all your seedlings short and compact before they go into the garden.  High light, moderate watering and cooler temperatures will help you achieve just that.

There is a lot of satisfaction in growing your own plants from seed, but germination takes a good deal of care and attention.  Seeds contain a little magic, and like a good magician, we must learn our craft well to help them perform up to our expectations.

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