Looks so nice... lets see what she brings in weight!
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Set up cost (fixed costs)
-Lamp: 40€
-Timer: 3,5€
-Pot: 4€
-Total fixed costs: 47,5€
Given 5 years (or 15 grows) usage time translates to around 3,17€ per grow in materials.
Variable costs:
-Seed: free (own cross)
-Soil: 4,5€
-Fertilizer: 3,50€
-Power: 15,51€
-Total variable costs: 23,05€
-Total costs per grow: 26,68€ or 1,07€/g