I built a small 2 meter by 1.2 m raised garden bed, it is .7 m in height. I plan to fill it with gardening soil and move a bunch of raspberry bushes into it (with a bamboo lattice). Hopefully the raspberries will be easy to harvest and will stay contained in the raised bed instead of spreading through the yard.
That's a poor picture but you get the idea. I built the thing over the course of a Sunday from field stone and two bags of mortar cement. It has no base, I just cleared out the grass and the entire thing rests on dirt. Will it be strong enough to contain the three or so cubic meters of dirt dirt and not collapse or explode from hydraulic pressure?
If I were following proper procedure I probably should have first built a base... I know. Altogether though if a field stone + mortar wall holds up it's quite a value. The stone was free and the two bags of mortar cement cost $8 total. That's as much as just nine or ten stacking blocks at home depot! Any resources on how to build with field stone for future reference, so I build future projects properly??
EDIT: In the future, if I build any more such field stone projects, I think I will cap the top layer off with a more expensive nice looking stone. If this works it will give rustic but nice look at much lower cost than using prefab concrete block or pre-cut stone from HD.