Microgreens at Home: Methi, Sarson (Mustard) and Mooli in a Tray
Microgreens at home are the quickest harvest a beginner can get: sprinkle methi, sarson (mustard), mooli (radish) or moong seeds thickly on a shallow tray of soil, keep them dark and damp for two or three days, then give them a bright windowsill. In about 7 to 14 days you snip a tray of tiny green shoots with scissors. No balcony, no big pots, no season to wait for. Here is the tray, the seed amounts, the daily routine, and how to tell harmless root hairs from mould.
At a glance
- Time to harvest: radish and mustard 7 to 10 days, methi and moong 8 to 12, dhania 14 to 21
- Tray: 3 to 5 cm deep, with holes; a cut plastic bottle or takeaway box works
- Light: a bright window after the dark phase; direct sun only in the cool months
- Seed: plain kitchen seed or untreated sprouting seed, never coloured seed packets
- Harvest: cut just above the soil when the first leaves open
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What are microgreens, exactly?
Microgreens are vegetable and herb seedlings cut when they have their first one or two sets of leaves, usually 5 to 10 cm tall. They are not sprouts. Sprouts are seeds germinated in water and eaten whole, root and all. Microgreens grow in soil or a mat, in light, and you eat only the stem and leaves above the surface. That difference matters for food safety, which we come to below.
They are also not baby methi or baby palak. Full sized leafy greens in pots are a different project, covered in our guide to palak, methi and sarson in pots.
Which seeds grow best as microgreens?
Start with what is already in your kitchen or the seed shop.
| Seed | Days to cut | Taste | Note |
|---|---|---|---|
| Mooli (radish) | 7 to 10 | Peppery, crisp | Fastest and most forgiving |
| Sarson (mustard) | 7 to 10 | Hot, like a mild wasabi | Small seed, sow evenly |
| Methi (fenugreek) | 8 to 12 | Gently bitter | Kitchen methi dana germinates well |
| Moong (green gram) | 8 to 12 | Sweet, pea like | Soak 6 to 8 hours first |
| Dhania (coriander) | 14 to 21 | Fresh coriander | Crack seeds in half, slow and patchy |
Did you know? A coriander “seed” is really a tiny dry fruit holding two seeds, which is why gardeners crush it gently into halves before sowing.
How to grow microgreens at home, step by step
- Pick a tray. Anything 3 to 5 cm deep with drainage holes: a cut open 2 litre bottle laid flat, a takeaway container, a mithai box lined with plastic and pierced. Set a second tray or plate under it to catch water.
- Fill it. Use 2 to 3 cm of fine, loose potting mix or cocopeat. Sieve out lumps and twigs. Press it flat and water until damp, not muddy.
- Sow thickly. Much thicker than normal sowing: seeds almost touching, but in one layer. Roughly 1 to 2 tablespoons of methi or moong, or 1 to 2 teaspoons of mustard, covers a tray the size of a sheet of paper. Press seeds gently into the surface.
- Dark phase, 2 to 3 days. Mist the seeds, then cover with another tray or a plate. Some people put a light weight on top so the shoots push up strongly. Check and mist once or twice a day.
- Into the light. When most seeds have sprouted and the pale shoots lift the cover, remove it and put the tray by your brightest window. Shoots turn green within a day.
- Water from below. Pour water into the bottom tray for 10 minutes, then tip away the rest. Watering from above flattens the shoots and keeps leaves wet, which invites mould.
- Harvest. When the first leaves open (and before true leaves get big), cut just above the soil with clean scissors. Cut only what you will eat that day.
Can you grow microgreens without soil?
Yes. A few layers of damp tissue, cotton cloth or a jute mat in a tray will carry radish, mustard and moong through to harvest, because the seed itself holds enough food for the first week or two. Soilless trays are cleaner indoors but dry out faster, so check them twice a day. Methi and dhania do noticeably better in soil or cocopeat.
Root hairs or mould? The 10 second check
Around day two or three you may see white fuzz on the roots and panic. Look closely. Fine white fuzz that sits on the roots only, all the same length, is root hairs: the roots growing tiny hairs to drink. Mist it and it vanishes in seconds. Grey, cobwebby fuzz spreading across seeds and soil, often with slimy dark patches or a musty smell, is mould. Mould does not vanish when misted. Throw that whole tray in the compost, wash it with hot soapy water, and next time sow a little thinner and keep more air moving.
Use seed sold for eating or sprouting, or plain kitchen methi, moong and sarson. Never use garden seed packets that are coloured pink, blue or green: that colour usually means a fungicide coating that is not meant to be eaten. Wash your hands and tray before sowing, use clean water, and rinse the cut greens before eating. Discard any tray with mould or a sour smell. Pregnant women, older people, young children and anyone with weak immunity should be cautious with raw sprouts; microgreens are lower risk because the part you eat grows in air, but washing well, or adding them to hot food, is the sensible choice for those groups.
How many days do microgreens take, and why is mine slow?
Radish and mustard are ready in about a week in warm months; in a cold north Indian or Punjabi January they can take twice as long. Slow, pale, leggy shoots mean too little light, so move the tray to a brighter window or leave it outside in morning sun. Yellow shoots after the dark phase usually turn green within a day of light. Patchy germination means old seed, uneven watering or seed buried too deep.
Climate notes: in the plains, microgreens grow all year indoors, but in May and June a sunny sill can cook a shallow tray, so give only morning light. Humid coastal kitchens (Karachi, Mumbai) see more mould, so sow thinner and run a fan. In hill towns, keep trays in the warmest room in winter.
Are microgreens healthy?
They are a fresh green vegetable that adds flavour, crunch and some vitamins and fibre to food, much like the leafy greens they come from. You hear claims that they are dozens of times more nutritious than grown vegetables. That is hype: some nutrients can be higher per gram in seedlings, but you eat a small handful, not a katori of cooked saag. Treat them as a garnish and a joy, not a superfood. Sprinkle them on paratha rolls, raita, daal, eggs or salad.
Myth: you can regrow microgreens from the same tray
Mostly no. Once you cut below the seed leaves, most of these plants have nothing left to regrow from. Pea shoots sometimes give a second, weaker cut, but methi, radish and mustard do not. Tip the used soil and roots into your compost bucket and start a fresh tray.
Keep a rolling supply
Sow a small tray every 4 or 5 days and you will always have one ready. When you want to move up to real plants, our balcony herb garden guide and the month by month sowing calendar are the next steps.
Microgreens questions people ask
How do I grow microgreens at home?
Sow seeds thickly on 2 to 3 cm of damp potting mix in a shallow tray with holes, cover for 2 to 3 days in the dark, then move to a bright window and water from below. Cut with scissors after 7 to 14 days.
How do I grow methi microgreens?
Use plain kitchen methi seeds, soaked for a few hours if you like, spread close together on damp soil. Keep them covered for 2 days, then give them bright light; they are ready in 8 to 12 days.
How do I grow mustard microgreens?
Sprinkle sarson seeds evenly over damp soil, press them in, and keep covered for 2 days. They grow fast and are ready to cut in 7 to 10 days with a hot, peppery taste.
Can microgreens grow without soil?
Yes, on damp tissue, cotton cloth, jute or cocopeat. Radish, mustard and moong do well this way; check moisture twice a day because these trays dry quickly.
How many days do microgreens take to grow?
Most take 7 to 14 days. Radish and mustard are quickest, methi and moong a little slower, and dhania can take up to three weeks.
Are microgreens healthy?
Yes, as fresh greens they add vitamins, fibre and flavour. They are not a superfood, though, and a small handful does not replace a proper serving of vegetables.
Why is there white fuzz on my microgreens?
If it sits only on the roots and disappears when misted, it is normal root hair. Grey, spreading, smelly fuzz is mould, and that tray should be thrown out.
Do microgreens need sunlight?
They need bright light after the dark phase. A bright window is enough; direct sun is fine in winter but can scorch a shallow tray in summer.
Can I use any seeds for microgreens?
Use untreated seeds meant for eating or sprouting. Avoid coloured, coated garden seed and never use seeds of plants whose leaves are not eaten, such as tomato or brinjal.
Do microgreens grow back after cutting?
Usually not. Most types are a single harvest, so compost the roots and sow a new tray every few days.
More small kitchen garden projects live in Zero-Waste Kitchen.