Peat based (or a peat alternative) type compost is ideal.

Now this is the time to decide if you want to sow your seeds in trays, cell trays or pots.

It is also time to calculate how many trays, inserts or pots you will need to sow the number of seeds you are going to sow.

As a rule of thumb, you can easily sow up to 20 impatiens seeds in a 75mm (3 inch) pot. Or up to 50 seeds in a half size seed tray. 120 in a full size seed tray and any combinations in between.

Sieve enough compost, on to your potting bench, or potting tidy/caddy, to fill all your trays or pots.

Don't discard the sieved out lumps and bits. These can be used in the bottom of larger patio pots when planting them up with your own home grown plants. (Save the lumps and bits in an old compost bag until needed).

Fill the seed tray/s or pot/s with compost to about 5mm below the rim (this does not need to be exact - about 5mm will do).

Lift the tray or pot to a height of about 15cm (6 inches) and gently tap it on the bench. Do this about three times. This will settle the compost into the tray or pot to about the correct level.

The compost should now be about 10mm (1/2 inch) from the top of the tray or pot. This does not have to be exact so don't worry if it is a couple of mm higher or lower. It will make no difference to the end result.

Take your correct size tamper and gently level the surface of the compost. DON'T push the tamper with any force. All we want to do here is level off the surface of the compost, NOT compact it.

*This gives an ideal surface to sow the seed on. *(Doing this correctly will increase your propagation success rate)

That's it. You have now successfully filled your first tray or pot with compost.

Now Fill the rest of your trays or pots in the same way.

This is the fun part, sowing the seeds.

Although Impatiens seeds are fairly small they are easy enough to handle individually.

This means that you can handle and sow impatiens seeds one at a time which makes sowing much easier and avoids bunching the seeds all together.

Sow one seed in each cell or 20 seeds in a 75mm (3inch) pot, 50 seeds in a half size seed tray or 120 seeds in a full size seed tray.

When sowing in 75mm (3inch) pots, half or full size seed trays make sure the impatiens seeds are spread evenly over the surface of the compost.

*Do not get them bunched up.

There you go see how easy it is?

When you have sown all your impatiens seeds don't forget to label them with plant name and date of sowing.

Impatiens seeds need light to germinaite, so do not cover them with compost.

*However, if you cover them with a thin layer (about 2mm to 3mm deep) of fine vermiculate this will allow the light through and also keep the surface of the compost and the seeds from drying out, which is an ideal environment for seed germination.*(By doing this correctly you will greatly increase your chance of success).

Watering

Water your trays or pots with great care.

With your mist sprayer, set at it's finest spray, filled with tepid water and held at about 100mm (4 inch) from the pot or tray, lightly spray the surface of the compost. Don't get to close, or overdo it here, you will disturb the seeds which is exactly what you don't want to do!

The idea is to settle the surface of the compost with the fine mist from your sprayer. This prevents the seeds being disturbed.

Now fill a container, large enough to put the tray or pot in, with tepid water *(preferably water that has been standing in a warm place for about twenty-four hours) and definitely NOT rainwater, use good old tap water!

Stand the tray or pot in the container of water and leave it until you see the surface just becoming moist.

This usually happens fairly quickly so don't be tempted to go off and do something else.

*Do not overdo the watering process, you don't want the compost saturated, or your seeds may rot and not germinate.

*(By doing this correctly you will greatly increase your chance of success).

Germination

Cover your trays or pots with glass or clear plastic (or preferably, for ease of use, place in a propagator - unheated will do).

Keep your tray or pot in the light, (not direct sunlight) and maintain a temperature of 18C to 20C (65F to 68F).

After Germination

When your seeds have germinated and are large enough to handle transplant them into seed trays.

Be very careful handling the seedlings. Do not handle them by their stems as this will cause irreversible damage resulting in the seedling collapsing.

Handle the seedlings very gently and only by their leaves.

Tease the seedlings roots out with great care ensuring not too many roots are damaged. Time and care taken hear will really pay dividends giving your seedlings the best possible chance of growing on successfully.

Plant them in individual 75mm (3inch) pots filled with a good quality potting compost. A sieved peat based or peat alternative compost will be fine.

When you have transplanted all your seedlings don't forget to label them with plant name, sowing date and transplanting date.

Water your trays or pots with great care.

Fill a container, that is large enough to put your seed tray in, with tepid water *(preferably water that has been standing in a warm place for about twenty-four hours) and definitely NOT rainwater, use good old tap water!

Stand the tray of seedlings in the container of water and leave it until you see the surface just becoming moist.

This usually happens fairly quickly so don't think about going of and doing something else.

*Do not overdo the watering process, you don't want the compost saturated, or your seedlings will rot and die.

*(By doing this correctly you will greatly increase your chance of success).

Keep the transplanted seedlings in good light (not direct sunlight) until they are large enough to be harden off.

Nice healthy impatiens grown from seed in a half size seed cell tray. This is an ideal way of growing plants such as impatiens from seed.
These seedlings are just the right size for transplanting into single pots.

Grown in half or full size seed cell trays is a highly recommended way of growing plants such as impatiens from seed and is much preferred to sowing in pots.
Remember this when you come to sow your impatiens seeds. It will increase your chance of success!

Aftercare

Plants should be gradually hardened off by placing them outside, in a sheltered position, during the day.

A cold frame with the lid open is ideal for this. If it is very cold during the day close the lid, but watch out for excess condensation.

If there is excess condensation prop the cold frame lid open slightly until the condensation disappears.

Bring them in at night to avoid severe frosts.

When they are ready for planting out, make sure it is after the last frosts.

If you have any queries or comments please feel free to

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