To the eye, there are no visible differences between a plant on hydroculture and a plant in soil. Both appear equally green, fresh, and decorative. But beneath the surface, the difference is significant. You understand how important it is to choose the right system. In this article, we clearly outline how these systems differ and what this means for maintenance, sustainability, and plant health. This way, you can make the right choices for each project and offer your customers the best advice.
What is hydroculture?
Hydroculture is a cultivation system where plants grow in an inorganic substrate (such as hydro-granules) instead of in potting soil. The roots take up nutrients dissolved in water. The hydro-granules have a strong absorption capacity, allowing them to hold and gradually release water to the plant roots. Thanks to the capillary action of the hydro-granules, water always reaches the roots without pooling at the bottom. A water level indicator makes it easy to see how much water is available to the plant.
Hydroculture plants start as regular pot plants but are later transferred to a hydroculture system. Their roots develop differently: they grow straight down towards the water level but remain just above it to ensure sufficient oxygen intake. This keeps the roots healthy and well-aerated.
What are the advantages of hydroculture?
1. Less maintenance
Hydroculture plants require watering much less often – on average only once a month. This saves time and costs, especially for large or difficult-to-reach interior plantings.
2. Always enough oxygen
Hydro-granules retain their shape and do not shrink. This keeps the substrate airy, preventing root suffocation. Plants thus remain stronger and more vital.
3. Reduced risk of disease
Hydroculture is less susceptible to fungi, bacteria, and pests, meaning plants stay healthier longer. There is also less risk of substrate acidification compared to soil culture.
4. Simple watering and fertilisation
Nutrients can be precisely supplied through the water. The water level indicator shows the right time to water, helping to prevent overwatering.
5. Cost savings in the long term
Although the initial investment in hydroculture is higher than soil culture, maintenance costs are lower. Plants generally stay attractive for longer, and maintenance frequency is reduced.
