Propagation light calculator
Turn a PPFD reading and lamp hours into a daily light total for cuttings.
Fixture distance notes live on best grow lights for indoor propagation.
Propagate How-To
Get a second plant from the one you already own
Cut a node, set it in water or soil, and follow the numbers. Guides for pothos, snake plant, monstera, and the other houseplants people actually try.
Concrete numbers for home jars and pots. No grow-room stories.
Tools
Calculators for light on the leaf and water in the jar.
Propagation water change calculator
Enter days since the last jar change and how the water looks. Get Change now, Change today, or On track.
Full jar steps live on water propagation.
Cuttings rot when the steps skip the numbers
You drop a pothos in a jar and hope, or you watch a long video that never says how many nodes to take, how often to change the water, or when roots are long enough to pot. These guides put those numbers next to the steps.
How to start
- Pick the plant on your shelf
Open the guide for that species.
- Use one method
Water, soil, or air layering. Pick one path for this cutting.
- Wait for the number, then pot
Usually 1–3 inches of root, then move to mix.
What you get from these guides
- Guides use node counts, water-change cadence, and root length before potting.
- Each guide is for one plant or one method, so you open the one that matches the job.
- Indoor houseplants only. We skip ponds, foraging, and medical plant advice.
Pick the plant on your shelf
Featured guides below. See all guides for every plant and method.
How to Divide Houseplants
Divide a crowded houseplant by unpotting it, splitting the root ball into pieces with leaves and roots, and potting each piece in fresh mix.
How to Propagate Satin Pothos
Propagate satin pothos (Scindapsus pictus), also called silk or silver pothos, from stem cuttings in moist mix or water. Not Epipremnum aureum.
How to Propagate Cast Iron Plant
Propagate cast iron plant (Aspidistra elatior), also called bar room plant, by rhizome division, then pot each piece in fresh mix in a drained pot.
How to Propagate Areca Palm (Golden Cane Palm)
Propagate areca palm (Dypsis lutescens), also called butterfly or golden cane palm, by dividing a clump or by seed. It is a true Arecaceae palm.
How to Propagate String of Dolphins
Propagate string of dolphins (Curio peregrinus) from stem cuttings or by layering trailing stems. A Curio trailer, not pearls, bananas, or hearts.
How to Propagate Sago Palm
Propagate sago palm (Cycas revoluta) from seed or from suckers and offsets. Not a true palm. All parts are highly toxic, especially the seeds.
What these guides leave out
Indoor ornamental propagation only. No toxicity-treatment advice, no foraging ID, no outdoor landscaping. If your plant is not in the guides yet, start from a close relative or the water, soil, or air-layering method that fits the cutting.