Sulfur is not sulfuric acid, and it will not dissolve in water to any significant extent. Nonetheless, putting down some sulfur on the surface, around the shrubs, under the mulch, will over time lower soil pH. What happens is that bacteria already living in the soil consume the sulfur, metabolize it, and eventually, they release sulfuric acid. The process takes about a year. It might go faster in a warmer climate than we have here in Wisconsin. Adding vinegar to water, or any acid, for that matter, will cause an immediate drop in pH. So, this procedure is more dangerous to the plant, if you add too much acid. It is possible to kill plants with vinegar, even 5% vinegar from the grocery store. I have found that 12 fluid ounces of 5% white vinegar, added to 4 gallons of our tap water, is safe for blueberry shrubs. However, our tap water has considerable calcium carbonate, from underground limestone aquifer. When transplant blueberries leaf out in the spring, they demand nutrient from the roots, and the roots typically take about 6 months to get really established. So you might see some sign of nutrient deficiency in the leaves during the first few months. If you have a long period of sunny weather, and the plants look stressed, you can save them by erecting some sort of shade, or partial shade. Anything you can cobble together will work, even if the shade provided is only partial.

Several different sundews and butterworts will do good in a terrarium if you have good CFLs or fluorescent tube type T5, T8 or T12 lighting. IMO T5s have the best BANG for the BUCK. Most pygmy, spathulata and capensis sundews do well. I haven't grown any pings yet but I'm sure someone who has will chime in.

The butterwort is similar to pinguicula primuliflora. You won't need to wait to spring to divide them since all your plants are tropical It's your choice if you want to divide them.But if I were you I would leave them the way they are. Good luck, Adrian

Donna, it almost sounds like you are going to kill them with kindness. You should be able to take cuttings now. I don't bag mine for humidity, I dust with rooting hormone, insert in 5" deep plastic pots with drainage holes filled with any commercial potting soil and sit in shade. Water occasionally to keep moist. When it gets a little later, you could place the pots someplace semi protected...under a rhododendron is good - mother nature will do the rest. If we have an frigid blast of cold weather predicted (winter before last :) ), you could move the pots into an unheated porch or garage temporarily. If you have a large plant with flexible stems, pinning a branch to the ground with a brick or rock will usually assure layering - a new plant to cut free from the parent plant and pot up or transplant in Spring.