Is water or soil better for propagation?

Written by
Paul Reynolds
Reviewed by
Prof. Martin Thorne, Ph.D.Propagating succulents and leaves in soil is always superior to the water method. In nature, they favour dry mediums that resist wilt. Water mediums typically allow stem rot to occur before roots form. I have tried both media exponentially for 5 years. The soil method will give you twice the success.
Root Development
- Soil mimics natural dry environments
- Encourages stronger root structures
- Prevents waterlogged tissue damage
Rot Prevention
- Well-draining mixes avoid moisture retention
- Air circulation dries soil between waterings
- Eliminates standing water risks
Transition Ease
- Roots adapt directly to final growing medium
- Avoids transplant shock from water to soil
- Simplifies the hardening process
Water propagation presents challenges, notwithstanding its visual appeal. Stems placed under water develop fragile roots that typically collapse upon transplant. I've had rot kill 70% of cuttings grown in water. Your cutting needs the oxygen exchange that the soil provides naturally. Standing water is welcoming to pathogens that will obliterate delicate cells.
Follow the proper steps for successful soil propagation. Use shallow trays filled with a gritty 60:40 soil-perlite mix; put the leaves on their sides without covering the bases. I mist the soil every 3 days after the callousing was completed. I don't overdo it with moisture because of my 'Finest Touch' technique. For the best propagation speeds, stay in the 70-75°F range.
Think of water for stem cuttings only, not leaves. Some varieties with thick stems can tolerate brief periods in water. I sometimes do with some of my trailing Sedum. You should be experimenting with only the more resilient types. Always move into the soil before roots reach 1 inch.
Utilize soil methods for reliable propagation results. The natural cycle will not result in excessive losses. I have filled entire gardens with soil methods. Your leaf propagation experience will work best by using known dry methods.
Read the full article: How to Grow Succulents From Leaves Successfully