Aeroponics is a kind of hydroponic growing in which plants grow with their roots hanging in growth chambers where they are constantly misted with nutrient solution.
Plants are most of the time settled in small net pots filled with clay pebbles. These net pots are used for supporting the plants, and roots grow mainly outsite the pots, in the growth chamber.
Here is one of these pots. You will notice that the clay pebbles are rather large, leaving a lot of interstices. If you sow tiny seeds like basil or tomatoe, they can fall in the bottom of the pot and this can ruin seedling.
To avoid this, I cover up the large pebbles with a thin layer of smaller one. If you can’t find this kind of pebbles, you can use small pieces of the bigger one (they are easy to break) or perlite.
I drop of the seeds on these small pebbles.
I cover the seeds with a new layer of small pebbles. These are easy to move for the plant when it sprouts.
Now you just need to put the net pot in the aeroponic system and let the magic of Nature happen.
Just make sure water is warm enought (minimum 68 deg, more for tropical plants). If needed, you can use a aquarium heater. Seeds are warm, wet and oxygenated, kind of paradise for them…
This sowing technique works good for any hydroponic system using clay pebbles or in aquaponics grow beds.
Stay tuned …