Soil.
Sorry to burst you're bubble but plants only grow in Russia. :/
Bryophyllum
auxin
A trellis used to grow plants flat is called a espalier. It is a method of training trees or shrubs to grow against a flat surface, creating a decorative and space-saving way to grow plants in a limited area.
Begonias and Streptocarpus to name but two.
Fertility.
Only parasitic plants such as Dodder can grow without photosynthesis
No, bush bean plants do not climb. As the name suggests, they grow into bushes.
it can make plants grow.
Kelp and Seaweed.
Orchids, Bromeliads, moss, roots, and wooden vines. Even though there are some plants growing in trees many also grow in the understory and some that grow in the water.
Name that rhymes with small:CornallDallFingallMarshallPaul