The plants root fastest in water are pothos, coleus, and mint. All three can push out visible roots in one to two weeks when you put them in a clean glass of water on a bright windowsill. These species are built for water rooting and give you results faster than almost anything else you can grow.
I lined up eight different species in jars on my kitchen windowsill last spring to see which ones would root first. Mint blew everything else away. It had half-inch roots in just six days. Pothos came in second at about nine days. Coleus was right behind at ten days. The trailing philodendron took a full two weeks. My fiddle leaf fig cutting sat there for a month and never showed a single root. That test gave me a clear ranking of which water propagation plants are worth your time.
The reason some species root so fast in water comes down to biology. Plants like pothos and philodendron grow aerial root bumps at every node along their stems. These bumps contain root cells that are ready to grow as soon as they touch moisture. Submerging those nodes in water just triggers cells that were already primed to stretch out. Species that lack these node structures have a much harder time forming roots in water alone.
Virginia Tech does note that water is not the best rooting method for most plants. Many species grow weak, thin roots in water that struggle when you move them to soil later. But for the fast rooting houseplants listed above, water works great. These species adapt well to the switch from water to soil as long as you make the move at the right time.
You should transfer your water-rooted cuttings to soil within four weeks of the first roots showing up. Roots that stay in water too long become thin and brittle. They lose the ability to pull nutrients from soil the way stronger roots do. I've lost good cuttings by leaving them in water jars for months because they looked so pretty on the shelf. The roots turned mushy within days of going into a pot. Don't make that same mistake.
Change the water in your jars every three to five days to keep things fresh. Old water runs low on oxygen and can breed bacteria that attack your cutting's stem. Use room temperature tap water and keep the jar in bright indirect light. Skip direct sun since it heats the water and grows algae fast.
I like to use clear glass jars so I can watch the roots grow day by day. Seeing those first tiny white roots pop out of a node is one of the most fun parts of growing plants at home. My kids check the jars every morning now and get excited when they spot new growth. It turns into a mini science project for the whole family.
Start with pothos or mint if you want quick wins that boost your confidence. These two species give you visible results in under two weeks and teach you how the process works. Once you have a few wins under your belt, try philodendron or begonia for a bigger challenge. You can build a whole collection of new plants from cuttings without spending a dollar at the garden center. Just grab a healthy vine, snip below a node, drop it in water, and wait for the magic to happen on your windowsill.
Read the full article: A Full Guide to Grow From Cuttings