Hi, I have questions about the Bishop's Cap. There's a chance that I may not be able to get a VFT, so my next alternatives are cacti. Unfortunately, my mother (we're from China) says that having spiny or sharp plants is bad feng shui. (part of the reason why I may not be able to get a VFT) So, I thought that cacti are pretty cool, too. So, I need help on these kinds of cactus. I've borrowed some cacti books from the library and found out that a type of globular cactus that is spineless is the Bishop's Cap. I'd prefer to have a globular cactus. Questions:
1. Is it really spineless? One book said that it has millions of tiny spines that look like white dots, but it also said that there is a form of it that is completely spineless, and a nice dark green color, too.
2. Is the care of it relatively easy? Do I need a lot of sunlight?
3. Would a commercial cactus soil be good? And what kind of compost would I give it, and how much, how often?
4. How big would it eventually grow? How big of a pot will I eventually need if I get one of these?
5. How long will it live?
6. Does it need a dormancy period?
7. How available are they? Will they sell these types in home improvement stores like the Home Depot or Lowe's?