learn / kids · adults

what a root actually does

roots drink, hold on, and trade with the soil.

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the root's bouncer

something inside the root decides what gets in.

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who lives in a handful of compost

more neighbours than there are people on earth.

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why leaves are green

green is the colour of a leaf making lunch.

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the worm's job

a worm is a plough, a mixer and a compost heap.

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what a seed is waiting for

a seed is a packed lunch and a plan, asleep.

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apoplast and symplast — how water moves through a plant

two routes into the root, and only one of them is screened.

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the casparian strip and why it matters for nutrient uptake

the plant's checkpoint, and the reason soil chemistry is not plant chemistry.

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bacteria, fungi, protozoa and nematodes — the four kingdoms in your soil

who is there, what they eat, and what that means for your beds.

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the soil food web and nutrient cycling

fertility is a rate, not a stock.

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stomata and the role of potassium

the plant's thermostat runs on one mineral.

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what a soil test measures and what it can't

a chemistry report is a snapshot of a chemical extraction, not of your plants.

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