Growing On The Regular | MicroGreenJungle

One tray on a windowsill is a fun little experiment. A tray every week is a habit — and habits need a slightly better setup than "whatever container was in the recycling bin." None of this needs to get expensive or complicated. Just a few real decisions.

"You don't need a grow room. You need a tray that fits your counter and a medium you'll actually want to refill."

10×10 or 10×20?

These are the two standard microgreen tray sizes, and most gear (dome lids, mats, racks) is built around them. Here's how to pick.

10×10

The Half Tray

Half the footprint, half the seed, half the harvest. Great for testing a new variety or keeping two different greens going side by side without committing counter space to either.

Best For Small Spaces

10×20

The Standard Tray

The industry-standard size — one packet of seed is built around it, and it's what our density and yield numbers assume. Best if you're feeding more than one person or want a real weekly harvest.

Best For Regular Harvests

On A Budget? Reuse What You've Got

You don't have to buy real trays to grow on the regular. A lot of what's already in your recycling bin works just as well.

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Takeout Containers

Most are already the right shallow depth, and a clear or semi-clear lid works as a built-in humidity dome for the blackout stage.

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Rotisserie Chicken Tubs

The domed clear lid is basically a mini greenhouse already — and you get a free one every time you buy dinner.

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Berry & Produce Clamshells

Already vented, already shallow, and the hinged lid snaps shut for blackout days. About as close to a real tray as free gets.

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Cake Pans & Baking Sheets

Good for a bigger, flatter grow if you're not ready to buy a tray — just make sure you're not letting water pool in the corners.

Picking A Grow Medium

Once you're doing this regularly, it's worth landing on one medium you're comfortable buying in bulk instead of grabbing whatever's around each time.

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Potting Soil / Seed-Starting Mix

Why people use itCheap, familiar, holds moisture well, and has a little natural nutrition built in.

Trade-offMessier to harvest and rinse — dirt can cling to the base of the stems.

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Coco Coir

Why people use itClean, sustainable byproduct, holds moisture evenly, and rinses off the roots easily at harvest.

Good to knowComes two ways — cheap compressed blocks you soak and expand yourself, or ready-to-use bags if you'd rather skip the prep entirely.

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Jute or Hemp Mats

Why people use itThe cleanest option by far — almost no mess at harvest, reusable-ish, great if you hate rinsing dirt off greens.

Trade-offNo nutrition of its own, so it works best for quicker, lighter-feeding varieties.

Do You Actually Need Grow Lights?

Our Take

Probably not — unless you're keeping trays going year-round.

A bright windowsill is genuinely enough for most people growing a tray here and there. Microgreens are only in the light phase for a few days, and natural light does the job fine.

Where lights start to earn their keep: once you're running a real rotation — a few trays going at once, staggered so you always have something ready — consistent light matters more, especially through winter or in a room that doesn't get strong sun. A cheap clip-on LED grow light solves this without turning your kitchen counter into a commercial setup. You don't need a full panel — just enough to keep things consistent.

The Rotation Trick

If you want fresh microgreens on a real schedule instead of one big harvest followed by nothing: sow a new tray every 3–4 days instead of all at once. By the time your first tray is ready to eat, your second is already coming up behind it — a rolling harvest instead of a boom-and-bust cycle.

Growing On
The Regular.