Core rule: cuttings need more air and less fertilizer than established plants.
Standard Cutting / Propagation Mix
Use the Standard Cutting / Propagation Mix for most ordinary leafy cuttings; cactus and succulent cuttings follow the exceptions below.
Recipe by volume: 1 part generic potting soil + 1 part coarse perlite.
Optional moisture-retentive variation: 2 parts generic potting soil + 1 part coarse perlite, by volume. Use only when the species and drying conditions justify it.
Do not add fertilizer at sticking. Begin weak feeding only after roots are established and new growth begins.
Which Mix for Which Cutting?
Plant / cutting type | Use this mix | Key point |
|---|---|---|
Most tropical houseplants | 1 part generic potting soil + 1 part coarse perlite, by volume. | Best general default. Moist but airy. |
Soft, moisture-loving tropicals | Optional variation: 2 parts generic potting soil + 1 part coarse perlite, by volume. | Do not keep soggy. High humidity helps. |
Succulents | 1 part generic potting soil + 1 part granite chicken grit, by volume. | Let cut surface callus first. Keep much drier than tropical cuttings. |
Desert cacti | 1 part generic potting soil + 2 parts granite chicken grit, by volume. | Callus thoroughly. Very sparse watering until rooting. |
Epiphytic / tropical cacti | 4 parts generic potting soil + 3 parts compost-rich raised-bed/in-ground soil ingredient + 3 parts coarse perlite, by volume. | More organic matter than desert cactus mix; still airy. |
Woody ornamentals | 1 part generic potting soil + 1 part coarse perlite, by volume. | Use fresh semi-hardwood/softwood material as appropriate; humidity control is important. |
Herbs | 1 part generic potting soil + 1 part coarse perlite, by volume. | Basil/mint root readily; rosemary/sage need excellent aeration. |
Simple Decision Rule
• Fleshy desert plant? → Use the existing Desert Cactus or Succulent Standard.
• Epiphytic cactus? → Use the existing Tropical Cactus & Epiphyte Standard.
• Almost everything else started as a stem cutting? → Start with the 1:1 Standard Cutting / Propagation Mix.
• Very tender, water-loving cutting that wilts rapidly? → Shift to 2:1 potting soil : coarse perlite.
Handling Matters as Much as the Mix
Container: Use a small pot or propagation cell with drainage holes. Oversized pots stay wet too long.
Moisture: Pre-moisten the mix. Keep tropical cuttings evenly damp, never saturated. Keep succulent/cactus cuttings comparatively dry.
Humidity: A propagation box or clear cover can reduce water loss for leafy cuttings; provide some air exchange.
Light: Bright indirect light while rooting. Avoid hot direct sun under a humidity cover.
Transition: Once a cutting has a useful root system and begins active growth, transplant into the normal Standard mix for that plant type.
Standardization Recommendation
Keep the 1:1 Standard Cutting / Propagation Mix in the recipe set. Its ingredients already belong to the six-component inventory. Use the cactus, succulent and epiphytic-cactus exceptions when appropriate.