Le Journal Notes on growing — N° 01
One plant
becomes many.
Propagation is the quiet magic of gardening: a clean cut, a jar of water, and a few weeks of patience turn one healthy plant into the next one — for free. Here is how to do it well, and how to keep both plants thriving afterwards.
Long before garden centres, this is how plants travelled: a cutting pressed into a neighbour's hand, a divided clump carried to a new house, a jar on a windowsill quietly growing roots. Nothing about it requires a greenhouse or a green thumb. A plant wants to multiply — your job is simply to give it a fair start.
This guide covers the small amount of general care that makes everything else work, then the three techniques that between them will propagate almost any houseplant: stem cuttings, water propagation, and division.
01 Before you cut
- Light
- Bright and indirect. Near an east-facing window is ideal — harsh midday sun scorches young growth, while a dim corner stalls it.
- Water
- Room temperature, and less often than you think. For potted plants, let the top few centimetres of soil dry out between waterings.
- Warmth & humidity
- Most houseplants root fastest between 18 and 24 °C. A bright bathroom — or a loose clear bag tented over a cutting — raises humidity for free.
- Clean tools
- Sharp snips, wiped with rubbing alcohol between plants. A clean cut heals; a ragged one invites rot.
02 Three ways to make more
Stem cuttings
Snip just below a node — the small bump where leaves meet stem — and a stem becomes a whole plant.
Best for pothos, philodendron, tradescantia and most trailing plants.
Water propagation
Rest the cutting in a jar of water and watch roots appear — usually within two to four weeks.
The most forgiving method — and the easiest one to watch.
Division
Unpot, tease the root ball apart into clumps, and repot each clump as a plant of its own.
Ideal for ferns, snake plants, calatheas — anything that grows in clumps.
03 The water method, step by step
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Choose your stem
Look for a healthy length of 10–15 cm with at least two leaves and one node. Skip anything yellowed, flowering, or freshly repotted.
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Cut on the diagonal
Snip just below a node with clean, sharp blades. An angled cut exposes more surface — more surface, more roots.
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Strip the lower leaves
Nothing green should sit below the waterline. Submerged leaves rot, and rot spreads faster than roots grow.
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Rest it somewhere bright
A windowsill with indirect light is perfect. Refresh the water once a week — roots need oxygen as much as they need moisture.
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Pot on at five centimetres
Once the longest roots reach finger length, move the cutting into a small pot of airy soil. Keep it evenly moist for the first fortnight while the roots change habits.
“Roots first, leaves follow. Everything in a garden happens in that order — including your confidence.”
04 When things go sideways
Yellowing leaves. Usually overwatering, not underwatering. Let the soil dry properly before the next drink.
Cutting turns soft at the base. Rot, from a dull cut or stale water. Re-cut higher on the stem and refresh the jar.
Roots but no new leaves. Entirely normal. The plant is investing underground first; leaves arrive once the roots are settled.
Leggy stems reaching sideways. Light hunger. Move closer to the window and give the pot a quarter turn each week.
Mould on the soil surface. Still air. Crack a window, or run a small fan nearby for an hour a day.
Nothing at all after six weeks. Some plants are simply slow. Check the node is underwater, warm, and lit — then wait two more.
Your new plant will need
a wall of its own.
Every MaisonVoxel planter is printed to order in Montréal — a sculptural home for the cutting you just rooted.
