The 10 best herbs for your indoor hydroponic garden
Not all herbs are created equal when it comes to hydroponic growing. Some thrive in water-based systems and produce harvests within weeks, while others struggle without soil. Here are the 10 best performers in a QROOT garden, ranked by how easy they are to grow and how much you'll actually use them.
1. Basil
The undisputed champion of hydroponic growing. Basil germinates in 5-7 days, grows fast under LED light, and produces usable leaves within 3 weeks. Pinch the top growth regularly and each plant will bush out and keep producing for 2-3 months. Sweet basil, Thai basil, and holy basil all work well.
2. Mint
Mint is almost impossible to kill in a hydroponic setup. It grows aggressively, fills out quickly, and the aroma alone is worth it. Spearmint and peppermint are the easiest varieties. One warning: give mint its own pod space - it will crowd out neighbours if you let it.
3. Coriander (Cilantro)
A kitchen staple in Indian cooking. Coriander bolts quickly in soil during summer, but the controlled environment of a QROOT garden slows that down significantly. Harvest the outer leaves and let the centre keep growing. Succession planting every 2 weeks gives you a continuous supply.
4. Lettuce
Leaf lettuce varieties like butterhead, romaine, and red leaf grow beautifully in hydroponics. They're ready in 21-28 days and you can harvest outer leaves while the plant keeps growing from the centre. One QROOT can supply enough salad greens for a household of four.
5. Spinach
Indian spinach (palak) is a natural fit for hydroponic gardens. It prefers cooler conditions, so indoor growing with controlled LED light suits it perfectly. Harvest baby leaves at 3 weeks for salads, or let it mature for 5-6 weeks for cooking.
6. Dill
Dill grows tall and wispy but produces wonderful flavour for raita, fish, and salads. It germinates in about 10 days and reaches harvest size in 4-5 weeks. The feathery fronds look beautiful under the grow light too.
7. Parsley
Both flat-leaf and curly parsley do well hydroponically, though flat-leaf has more flavour. Parsley is slow to germinate - expect 2 weeks before you see sprouts - but once established it produces steadily for months. Patience pays off with this one.
8. Chives
Chives are a set-it-and-forget-it herb. They grow in neat clumps, rarely have problems, and regrow after cutting indefinitely. The mild onion flavour works in dals, omelettes, and as a garnish. They also produce small purple flowers if you let them - edible and pretty.
9. Rocket (Arugula)
Peppery, fast-growing, and perfect for salads. Rocket germinates in 3-5 days and is ready to harvest in under 3 weeks - one of the fastest crops you can grow. It does bolt eventually, but by then you've had several harvests from the same planting.
10. Kale
Kale takes longer than most herbs (5-6 weeks to full size) but it's worth the wait. Baby kale leaves are tender enough for salads, and mature leaves work in smoothies and stir-fries. Tuscan kale (lacinato) and curly kale both thrive in QROOT gardens.
Tips for getting the best harvests
- Don't overcrowd. Give each herb its own pod. Mixing fast growers (basil) with slow growers (parsley) in adjacent pods leads to the fast ones shading the slow ones.
- Harvest often. Cutting herbs regularly encourages bushier growth. If you let them get leggy, they'll bolt and stop producing leaves.
- Use fresh seeds. Seeds lose viability over time. Buy seeds dated within the last year for the best germination rates.
- Top up nutrients. Herbs are hungry plants. Follow the dosing instructions for Nutrient A and B, and refresh the reservoir water every 3 weeks.