Can Hoya grow from a single leaf?

Hoyas can be propagated from leaf cuttings, but not all hoya species can do this. Some hoya species can grow roots from a single leaf cutting, but they may not produce a new stem or plant. Other hoya species may not grow roots at all from a leaf cutting.
Here are some examples of hoya species that can and cannot propagate from leaf cuttings:
- Hoya carnosa: This is a common hoya that can propagate from leaf cuttings. It has thick and waxy leaves that can root well in soil or water. However, it may also take a long time for a new stem or plant to develop from a leaf cutting. A stem cutting with at least two nodes is preferred for quicker propagation.
- Hoya kerrii: This is a hoya that cannot propagate from leaf cuttings. It has heart-shaped leaves that can grow roots easily. However, it doesn't develop into a plant. A stem cutting with at least one node is needed for effective propagation of this hoya.
- Hoya linearis: This is a hoya that cannot propagate from leaf cuttings. It has thin and narrow leaves that do not have enough energy to produce roots or new growth. A stem cutting with at least three nodes is required for successful propagation of this hoya.
- Hoya pubicalyx: This is another hoya that cannot propagate from leaf cuttings. It has dark green leaves with silver flecks that are attractive but not suitable for rooting. A stem cutting with at least two nodes is needed for effective propagation of this hoya.
I hope this helps you understand how to propagate hoyas from leaf cuttings.