IT'S EASY to propagate fig plants from cuttings. Figs are hardy plants that root easily...but there are a few techniques that give you a better chance of success.
I have a few young plants--from cuttings that I rooted over the past month--growing on my kitchen windowsill right now.
And I just put in a load of cuttings last week.
The cuttings are from branches I pruned in the fall (and then stored in my beer fridge until now) along with branches I recently pruned as I trimmed my plants and removed crossing branches.
I stick a few cuttings (usually 5-6" long) in one pot filled with a light, soilless potting mix. I water well, cover with a clear plastic bag, and then put the pot in a bright spot.
HERE'S AN IMPORTANT TIP: bottom heat helps with rooting, and will speed up the rooting and increase you rate of success. I use a heat mat, which is like a heating pad for plants (but it's waterproof.) If you don't have a heat mat, perhaps you have a hot water radiator or heated floor to give bottom heat.
ONE OTHER TIP: fungus gnats (insects that look like fruit flies) can be a big problem for cuttings and seedlings. Young fungus gnats go through a soil-dwelling worm-like stage in their life cycle. So if you've got lots of fungus gnats, you have lots of root-gnawing mini worms wreaking havoc on your cuttings. Start with a clean potting mix (which, hopefully, will have no fungus gnats) and isolate your cuttings from other plants, which might have fungus gnats already living in the soil.