Hi Noki,

Sans do not like to be divided if they are to prosper and flower. They do like small pots, or, being cramped.

1. is a S. parva, but it in a hanging basket
2. is a S. cylindrica, do nothing but throw the horrible beast out ASAP
3. is a S. cylindrica, just leave them
4. is a S. trifasciata 'Laurentii', leave them.

Helli

In regards to pic #2, I would just leave them alone; I see that they are already making babies. I have a grouping that looks just like that and the straight stalks are slowly dying off, but only after sending up a bunch of healthy growing babies.

Nancy

Is the difference in size/habit of S. cylindrica natural variation, or are one or both just selected mutant forms?

Noki, the plant pictured by your beautiful black lab is a cylindrica var. cylindrica. Picture #6 COULD be a cylindrica var. patula. Maybe someone else can give an opinion on picture #6.

LOVE that shot with the dog!

Leave them in the pots that they are in, cut down on water, and perhaps change the soil, to a more gritty kind, only 10% of organic materials, let the plant crowd the pots, or even break the pots before you transplant to something larger. The first one is parva,or dooeri, depending on the width of the leaves, and how it starts the new growth. It grows in the mist of Victory Falls needs more sun not to flop over. Makes a great hanging basket subject. Norma

Thanks. I would want to try to encourage the second and last plant to grow as tall and big as possible. So it would not help to put them in a bigger pot now? Just let them get as cramped as possible, then put them in a bigger put?
My dog didn't understand why I was paying attention to a plant instead of throwing a toy, thought "look at me instead!"

Sansevieria typically increase in size as their root system expands. The bigger the root system, the bigger the subsequently produced rosettes. Moving them into a larger pot won't make them grow any faster, but better culture conditions might. The pots you have them in look plenty big enough for now so I'd leave them as they are.

Some species just don't grow tall, stronger plant occur when then are given less water more light (brighht shade) some species grow in the open amoung the grasses, or rocks, so really want dry conditions, they have adapted to dry conditions, at one time I am told that they were growing in with more water perhaps more tropical and really ancient lake beds that dried up for their summer. It all depends on the species, I have one that grows on the top of an ancient coral bed. The elephants are very fond of them mostly for the tuber that they dig up to provide water. These animals don't realize that they are providing a new crop for themselves. Another tip, the thin leaf species like S. trifaciata which has a tip on the top of the leaf that bend easily needs more water. That is the clue that tells you how much water it needs or that you can use more organic matter in your mix. Norma

All of the above members gave you excellent advise, The less care they get the better they will do. Gee I thought your dog was posing for the picture. If I leave out letters it is because my fingers do not feel that I have. I'm not a hunt a peck typist. Norma