Every year there are plants planted too deep or too high. Especially plants planted too deep cause quite some trouble:
– Delayed growing
– Diseases: head rot
– Higher risk of diseases on the flowers
Below a short film about planting strawberries. This is in the soil (elevated beds) but the principal of planting remains the same: the rhizome should be on the border of air/substrate-soil.
Pictures of a plant planted too deep.