To some how does one water seeds may seems like a silly question…. but to others it is the very simple things that most often are not explained due to assumption… more so on the horticulturists part. Try find any gardening book with how to water in the title….?
But, for years as a nipper I crushed and broke weak seedlings with large droplets from a watering can…. and it being the start of the growing season this dilemma has resurrected itself.
If you are sowing your seeds in trays that have perforations/ drainage holes on the base then we are in luck.
With your compost in the tray, slightly firmed…. place your seeds as preferred and drop the tray into a large container of water. As you can see here I have made really great use of my green bin that I did not want. You can of course use your brown bin if you wish
Capillary action [as it is called] is the process which will ensure the water is drawn up all by itself. You will see the compost turn from a dry brown to a wet dark black. Be careful here not to let the tray sink to the bottom and lose all your seeds… watched pots and kettles may come to mind but patience is the key. As soon as you see water just appear at seed level… you’re good to go. You can repeat his process as long as is necessary and as long as your seeds need to be in the plug tray.
If however your container does not have perforations… this is were it can get tricky.
These [left] are the ones I sowed for indoors. I don’t want drainage holes on them, because, they’ll leak all over the window ledges. And I can’t steep them… so…
The answer is to water the soil very well before putting my seeds on top. If I chose not to the compost bubbles up over the seeds and the seed sinks somewhere within the pile of mush 🙂
Watering of these is then done very gently. I myself like to used to use a Mr Sheen/ windowleen type misting bottle [you can’t go wrong this way] and wet them as necessary. Or I pour from a very small jug of water into my hands, held over the container and let the water trickle through my tightly gripped fingers.