Lithops plant size: Part 1 (17 pics)

One of the most common questions I am asked is about the size of my lithops plants and pots. While the part about pots is easily answered - 5 x 5 cm and 8,5 cm deep - it doesn't exactly clarify how big the plants are. I'm always writing about "the smaller the better" under windowsill conditions but how small is "small" exactly?

After having grown lithops for 10 years it is very clear that in order to grow them successfully under my conditions they absolutely need to be small. If watered (or fed) slightly too much they will stretch into unhealthy shapes and choke on their leaves during regeneration. If a plant is grown from seed by me it will increase in size extremely slowly. If I buy a large adult plant it will reduce its size at least by half during the next 1 or 2 leaf changes and stay like this (unless it dies). To get to the exact size of the plants I grow, imagine a 5x5cm pot and then imagine 8 adult plants growing in it. Or let's say rather 4 two-headed plants which would be more accurate. That's the limit that works for me without them squeezing each other out of the pot. It doesn't mean I follow through with it though. Sometimes I don't want to mix different species in one pot. Sometimes a plant looks great when it's presented individually. They do grow better I believe when potted in clusters but that's a story for another time.

According to various sources, L. aucampiae, L. pseudotruncatella, L. gracilidelineata and maybe L. hookeri belong to the larger species. And I'm talking about size of an individual head, not the ability to branch out. Let's see how this holds up on the windowsill.

I will measure the heads across the longest side. It will represent the plant size as of today, during active growth and regular water intake, not directly after regeneration when they are the smallest. I believe this is the average value even though they might increase in size a little bit until Fall (1-2 mm max).

The largest plants I have are Lithops gesinae v. annae (C078). They reach 2.2 cm consistently every year without any trouble regenerating and without any fertilizer or excessive watering. I've grown them for several years and it's always the same. I'd actually recommend them for beginners. My first plant came in 2008 when lithops were fairly new to me.

This below plant is two-headed and each head measures 2.2 cm.

As a contrast to that, L. gesinae v. gesinae (C207) are really small. The larger plant's head size is 1.3 cm while the smaller is 0.9 cm. It also seems to be a fixed value every year. They don't get bigger at all and are slow to regenerate.

L. aucampiae are considered large but on my windowsill they are no bigger than the regular L. lesliei (in fact some of my L. lesliei are larger than L. aucampiae). The largest plant I have is this L. aucampiae sp. at 1.9 cm. I got it from a gardening store rather bloated but it came back to this size after a couple of leaf changes and it works for it.

L. aucampiae 'Storm's Snowcap' (C392) plants I got from a specialized grower a couple of years ago measure 1.4 cm per head, which is the same size as my own 5 year old seedlings of L. aucampiae ssp. aucampiae v. aucampiae 'White Flower' (C002A). 1.4 cm is also the size of my L. aucampiae ssp. euniceae v. fluminalis (C054)

Let's check L. gracilidelineata. My mixed seedlings are from 2009 so you can say they are of adult size. I have 3 larger plants and 3 smaller. The larger plants measure 1.8 cm.

The smaller specimen are 1.4 cm.

Moving on to L. dorotheae, as they seem to be quite large. All the below are 1.7 cm

L. dorotheae de Boer

L. dorotheae (C300)

This L. dorotheae (C300) however is slightly smaller, measuring 1.5 cm across. It compensates with its 3 heads I guess.

I only have one L. olivacea v. olivacea (C055) so it's not exactly representative. The head size per se is not very large but this two-headed plant is massive all in all and occupies one pot by itself. Same as L. gesinae v. annae, it regenerates into the same size every year and maintains it without any help. The head size is 1.7 cm.

To sum things up, it seems that the average head size of larger specimen of lithops on the windowsill is around 1.7 cm. I will continue this topic and review the smaller plants next time. 

Lithops steineckeana and some others starting to grow (11 pics)

It is very cold outside but the sun in shining and you can see positive changes in lithops every day. All past hardships are forgotten and they are ready for this new season. 

Lithops steineckeana are probably the least lithops-looking of the genus. Supposedly, they are a cross between L. pseudotruncatella and some conophytum, and their looks do seem to support that, but who knows?

I grew below plants from seed. They are now 6 years old but they have never flowered for me. This year they have regenerated beautifully as always but have been nibbled on by mites a little bit. (The question is what has not been nibbled on by mites on my windowsill this winter?) Good thing lithops are not bothered by that much and get over it by the next regeneration.

The elongated form is the normal shape they grow in and the patterns lithops have only on top of their leaves actually go all the way down L. steineckeana's sides.

I do have one that is shorter. It is currently sharing its container with some L. gracilidelineata.

Same as their shape, the pattern is also not very stable. The below plant originated from the same batch of seeds, maybe even the same seed pod, but it almost looks like L. pseudotruncatella. If you have many seedlings you will see some completely white, others with little windows of L. pseudotruncatella patterns, and yet others that are fully patterned as L. pseudotruncatella. I only have 5 plants and they are all different.

Lithops lesliei 'Fred's Redhead' (more like Blackhead) I grew from seed back in 2011 have not escaped mites either. They're doing fine though. The color is so crazy dark when they are freshly changed! Too bad they also never flower. Only when the sunlight falls on them in a specific angle the red comes out. Otherwise they are all dark purple.

While lithops are plumping up like this L. bromfieldii v. glaudinae 'Rubroroseus' (5 years old)...

... most of the Conophytums are already deeply asleep. Make sure you don't bother yours until late August! 

New year, new life for lithops - part 3 (10 pics)

Continuing with the regeneration pictures here is the next bunch.

L. gesinae v. annae C078

One has less regenerating to do than the other. The left plants is one of my very first plants, bought as adult in 2008, making it at least 10 years old. Age doesn't show on lithops. It looks just as young as back then :)

This one is two-headed, bought last year, and the left head grew just slightly long. After ripping it open the new leaves are as short and flat as they should be. Just a small corrective surgery.

L. julii ssp. fulleri v. brunnea C179

This one I also have since 2008 and for the last several years it has settled down to this perfect round and short shape. I'm not good with L. julii but this one is being very patient with me. The new leaves have just started showing. Its neighbor will have to be transplanted as it's almost finished and will need water soon.

L. bromfieldii var.glaudinae 'Rubroroseus' C393A 
These are 2012 seedlings and almost done changing leaves. I itch to water them. They'll double in size then.

L. gracilidelineata
This is one of my 2009 seedlings. A very beautiful plant and already all new, same as its siblings.

L. hookeri v. lutea
It doesn't look like a lutea but okay. It's pretty and healthy and that's the main thing.

L. hookeri 
All growing nicely flat, making me proud.

The next guys are new since last summer and will hopefully adapt their life cycle to the new windowsill conditions (they are initially greenhouse grown). So far so good. I always have difficulties with white flowering lithops.

L. hallii (Kalk Kraal)

L. hallii v. ochracea (Ghams)

New growing season!

My dear readers, I'm sorry I have neglected the blog this winter. It's been busy and chaotic during and after the move to my new place but things are getting better, I'm settling in and finally have more time to look around instead of running all the time. I've been using my weekends for shopping (so many things are needed when you move!), assembling new furniture (all by myself and very proud of it) and simply getting used to the new environment (much like my planties). During the weekdays I couldn't take any pictures - I leave home in the dark and come back from work in the dark.

Anyway, this is how the new lithops-growing-place looks like. I'm going to put a panel from one side of the "inner balcony" to the other and shield it from the living room with curtains creating a winter garden of sorts. There will be much more room there for all the new sowings I've been planning for so long. I want to use the actual balcony for summer plant growing as well (much more light there!) but have to figure out how exactly.

I've lost some plants but much less than expected and about as many as I lose every winter. But we're not out of the woods just yet. The first year in the new environment is critical so this year I'm going to find out which plants can grow well here, which need a special care and which won't grow at all. I think this apartment will offer less sunlight but so far I can not see any plant growth assosiated with bad light conditions (fingers crossed it stays this way). And there is a first flower of 2015 - Delosparma harazianum decided to open a flower that's been in the pre-flowering state since months. Does it even have a fixed flowering season? To see it is very welcome and encouraging.

Lithops are doing their thing and regenerating more or less gracefully. L. fulviceps are doing it so nicely again they deserve a portrait. It definitely pays off for them to sometimes start the regeneration in summer already - they finish perfectly in time. And all the fresh two-headed-ness!

Perfect leaf changing performance from L. gesinae v. annae.

Smaller seedlings seem to be doing more or less okay. L. lesliei 'Fred's Redhead' are, I think, in fact doing much better this winter and I hope for a good growing season for them. Others are still in early stages while older seedling are all done by now and just slumber waterless untill it's warmer. Check out the cute smiling L. steineckeana!

I'm not watering any of the lithops yet but some of other succulents depending on their needs (judged solely visually). Avonias were getting a little water all the time (click for XXL pic).