Growing Microgreens at Home in an Indian Kitchen: What Works and What Doesn't

Microgreens are seedlings of ordinary vegetables — radish, mustard, sunflower, pea — harvested about ten days after sprouting, when they're a few centimetres tall. They're more nutrient-dense per gram than the mature plant, they taste intense, and they take up less space than a shoebox.

They're also the most common gateway into growing your own food, and the most common thing people give up on after one mouldy tray. This guide is what we've learned growing them commercially and at home in Delhi, where the climate makes everything slightly harder.

What you need

• A shallow tray with drainage holes. A plastic takeaway container with holes punched in the base works. Depth of 4–5cm is plenty.
• A second tray without holes to sit under the first, catching water.
• Growing medium. Coco peat (coir) is the best option in India — cheap, widely available, holds water without going sour. Ordinary garden soil works but brings insects indoors.
• Seeds. Start with the forgiving ones: radish, mustard, methi (fenugreek), and sunflower. Avoid basil and coriander at first — slow and fussy.
• A spray bottle.
• A window that gets a few hours of indirect light, or an ordinary LED light.

Total cost to start: under ₹300 if you buy seeds from a local grain shop rather than a "microgreens kit".

The four variables that matter

Everything that goes wrong with microgreens comes down to one of these.

1. Seed density

Too sparse and you get a thin harvest. Too dense and the seedlings can't dry out between waterings, which is how mould starts.

A useful rule: seeds should cover the surface in a single layer, touching but not piled. For a tray the size of an A5 sheet of paper, that's roughly two tablespoons of radish or mustard seed, or a small handful of the larger sunflower seeds.

2. Water — from below, not above

Watering from above is the number one cause of failure. Wet leaves in a warm kitchen grow mould within 48 hours.

Instead: during the first two or three days, mist the seeds lightly twice a day. Once they've sprouted and have roots, stop misting entirely. Pour water into the bottom tray, let the growing tray sit in it for ten minutes, then drain. The roots drink; the leaves stay dry.

In Delhi's humid months (July–September), water every other day rather than daily. In dry months, daily is fine.

3. Darkness first, then light

For the first three days, cover the tray. A second upturned tray, a plate, a piece of cardboard — anything that blocks light. The seedlings stretch upward looking for light, which gives you tall, straight stems.

On day three or four, uncover and move to light. Within a day the pale yellow seedlings turn green. From here they need four to six hours of light daily. An ordinary 9-watt LED bulb thirty centimetres above the tray, left on for twelve hours, works better than a window in most Indian flats.

4. Air

Stagnant air plus moisture equals mould. Don't grow in a closed cupboard. A kitchen counter with normal air movement is fine. If you see any fuzz forming, a small fan on low, pointed near but not at the tray, fixes it within a day.

Timeline

• Day 0: Wet the coco peat until damp, not soaked. Spread seeds. Mist. Cover.
• Day 1–3: Mist twice daily. Keep covered.
• Day 3–4: Roots visible, stems 1–2cm. Uncover. Move to light. Switch to bottom watering.
• Day 7–10: First true leaves appearing (the second set of leaves, shaped differently from the first). Harvest anytime from now.
• Day 12+: Flavour becomes stronger and stems tougher. Harvest by now.

Harvest with scissors, cutting just above the coco peat. Rinse, dry on a cloth, eat within two days or store in a sealed container with a paper towel in the fridge for up to five.

What goes wrong and why

White fuzz on the surface. Mould. Cause: too dense, watered from above, or no air. Discard the tray, sterilise it, and adjust.

Fine white threads on the roots. Often not mould — these are root hairs, and they're normal. Mould is fuzzy and smells musty; root hairs are silky and smell of nothing. If unsure, spray with water: root hairs disappear when wet, mould doesn't.

Seedlings fall over. Not enough light after uncovering. Move closer to the light source.

Yellow seedlings that never green. Uncovered too late or light too weak.

Nothing sprouts. Old seeds, or seeds treated for agricultural use (check the packet — "treated" seeds are coated with fungicide and not for eating). Buy from a grain shop or a supplier who sells for sprouting.

Is it worth it?

Financially, marginally. A tray costs perhaps ₹20 in seeds and medium and yields what a shop would sell for ₹80–120. You won't get rich. But you'll have something fresh in ten days, from a windowsill, with almost no effort once you've got the rhythm.

More usefully, it teaches the variables that matter for all growing — water, light, air, spacing — in a cycle short enough that you can fail, learn, and try again within a fortnight. That's rare in gardening, and it's why we recommend microgreens as a first step before anything more ambitious.