What counts as a successful propagation?

A cutting is successful when it has developed visible roots at least 1 cm long. A seed is successful when it has germinated and produced its first true leaves. A division is successful when the separated section shows new growth after transplanting.

What is a good propagation success rate?

Above 70% is good for most methods. Easy-to-propagate plants like pothos or coleus often exceed 90% from stem cuttings. Harder plants like roses may average 40–60% even under good conditions. Leaf cuttings and seeds typically run 50–80% when conditions are right.

How does humidity affect cutting success?

High humidity (70–90%) is critical for cuttings because leaves continue to transpire before roots form. Low humidity causes wilting and death before the cutting can root. Use a humidity dome, plastic bag, or misting to maintain moisture around cuttings.

When should I use rooting hormone?

Rooting hormone (indole-3-butyric acid, IBA) speeds root initiation on stem and leaf cuttings. It is most beneficial for woody plants and slow-rooting species. Soft-stemmed cuttings like pothos or impatiens root readily without it.

What medium works best for rooting cuttings?

A well-draining, low-nutrient medium works best — perlite, coarse sand, vermiculite, or a mix of perlite and peat. Avoid potting mix with slow-release fertilizer, which can burn forming roots. Water propagation works for many soft-stemmed houseplants.

Why do my leaf cuttings rot before rooting?

Rotting is usually caused by too much moisture around the leaf base or a medium that stays waterlogged. Let cut ends callous for 1–2 hours before inserting them. Use fast-draining substrate and water sparingly until roots appear.

Propagation Success Rate Calculator

Name: Propagation Success Rate Calculator
Availability: InStock
Author: Nham Vu

Enter how many cuttings or seeds you attempted and how many succeeded to get your propagation success rate, plus tips to improve it.

Propagation Details

Propagation method

Cuttings attempted

Total stem cuttings you took and placed to root.

Cuttings that rooted

Number that developed visible roots and survived.

Target new plants (optional)

How many rooted plants you need in the end.

Fill in your propagation details and click Calculate.

Typical Success Rates by Plant & Method

Approximate rates under good conditions for a first-time propagator.

Plant	Stem cutting	Leaf cutting	Seeds	Division

Summary