From my perspective, the roots are my entire world. In a hydroponic system, I don't need dense, often unpredictable, soil. Instead, I thrive in an inert, supportive medium like rockwool cubes, clay pebbles (hydroton), or coco coir. These materials don't provide food themselves; their job is simply to anchor my root structure and support my stem, allowing my delicate white roots to spread freely and access the nutrient-rich water and oxygen that you will provide. This freedom from compacted soil means I can channel all my energy into growing lush, aromatic leaves for you.
My sustenance comes entirely from the nutrient solution you prepare. I require a balanced, water-soluble fertilizer, but please, mix it at only half or three-quarter strength compared to the bottle's instructions. I am a vigorous but not a heavy feeder, and a solution that is too strong can "burn" my sensitive roots, stunting my growth and damaging my leaves. The pH of this solution is critical to my health; I prefer it slightly acidic, between 5.5 and 6.5. Outside this range, I struggle to absorb nutrients, even if they are present. Check this regularly.
As a plant, I am a solar-powered factory. I need ample light to perform photosynthesis and produce the essential oils that give my leaves their signature scent and flavor. Provide me with 12-16 hours of strong light daily. A sunny south-facing window can work, but a dedicated LED or fluorescent grow light placed a few inches above my canopy will ensure I grow bushy and full, rather than becoming leggy as I stretch for more light. Furthermore, please ensure I have gentle air circulation. A small fan nearby strengthens my stems and helps prevent fungal diseases by keeping the air around my leaves fresh and moving.
You will find that I am an enthusiastic grower in a well-maintained hydroponic system. I will quickly develop a extensive root system and send up numerous shoots. To keep me productive and bushy, harvest my leaves regularly by pinching off the top sets of leaves, just above a lower set of leaf nodes. This action signals me to branch out sideways instead of growing only taller. Never remove more than a third of my leaves at one time. This consistent pruning is not harmful; it encourages me to become denser and provides you with a continuous supply of fresh mint for teas, dishes, and garnishes.
