Subject A - Peaty soil

Leaves are small, there are 4 plants germinated and the highest is 35mm.

Subject B - Clay

Leaves are medium, height is 45mm and there are 9 plants germinated.

Subject C - Chalky soil

Leaves are large, height is 50mm and there are 3 plants germinated.

Subject D - Loamy soil

Leaves are medium, height is 49mm and there are 9 plants germinated.

The chalky soil is by far the driest soil and despite a very slow start, the plants are growing  the best.

It should be noted that many of our plants have stretched and they have very thin stems as they have stretched looking for more sunlight. Some of the plants in the loamy soil have been buried.

The hydroponic plants are all growing very well and have not stretched as much.  

To try and combat stretching we are using jenga blocks to tilt the pots towards the sun.