This works on the Mexican Butterworts that form winter rosettes. You want to use the dry leaves just before it comes out of dormancy and grows its carnivorous leaves again. You want to pluck the leaf off rather than cut it off.
Lay the leaves right side up making sure all of the bottom is in contact with the media. Vermiculite seems to be the best media to use. Keep the cuttings in high humidity and in a few weeks each leaf should produce one to several plantlets. I dip mine in superthrive before placing them, but this aids mold growth as well so keep a close eye on them.
Humidity is the key to making this work. High humidity is best created with a propagation container. Propagation containers can be just about anything with a clear lid. Plexiglass over a flower pot will work, or just about any small container. You don't need a lot of soil to make this work, 1/4" deep is fine. I like using the plastic water trays, 4" - 8" depending on what and how many I am doing. I use one for the bottom to hold the soil and one as a top to keep the humidity high. See the Sundew section for pictures.
Once the plantlets have three or four leaves they can be moved to their permanent pots. Trim some of the old leaf away if there is an abundance. When you set it in the pot make sure it is in good contact with the soil.
Gemmae
This works with the Temperate Butterworts that form winter buds. You can pluck the numerous smaller baby buds off from around the base just before its growth starts to resume. Place them pointy side up on their permanent home. Each will start growth very soon and will produce a mature plant within two growing seasons.
Seeds
I always recommend growing seeds in vitro. If the seeds are from a plant that has a dormancy requirement then they need a wet stratification period before they will grow. Meaning they must experience a moist cold period before they will grow. You can achieve this one of two ways.
One way you can do this is place the seeds in a small zip lock bag with a moist piece of long fiber sphagnum moss for three - four weeks. Any technique that results in a cold/moist environment will do the trick. I have also used baby food jars to place them in the fridge.
If you do not want to wait the three to four weeks you can use Gibberellic acid. This is my preferred method but Gibberellic acid is generally hard to find and pricey when you do. There is a link to a place that sells Gibberellic acid in the links area if you are interested. I add a 1/4 of a "smidgen" of Gibberellic acid to 2 oz of RO water and soak them in it for roughly 24 hrs. This will keep approximately 2 weeks if stored in the refrigerator. For mixing instructions see the Gibberellic acid information page.
When the seeds are ready spread them sparsely on the growing medium. Do not cover with soil. Humidity helps here too so I put them in a propagation container. A 1/2" of soil is plenty. Place the container in bright light or within 12" under a fluorescent set on for 16 hrs/day. Within one to several months they should start to grow. Damp-off fungus may be an issue here too so use a fungicide if needed. When they have several leaves the can be removed and placed in pots. Acclimate them before moving and be careful not to damage the tiny roots.
