I don't think the lights will hurt it. I don't grow mine under lights, but I don't move them out of the sun when they're dormant.... unless i need the room for something actively growing :-)

Ok great thanks :)

I am paranoid of my lights now after all my stapeliads turned black in a day ;(

I should have know to keep the lights far away at first. Live and learn. I'll keep the tall Poissonii under the lights since it's been cloudy with no good sun for a couple of weeks here.

Thought I’d update on my larger poissonii that wasn’t showing any life. I decided to repot it in hydroton to keep on my heat pad under my T5 lights.

It was really potbound and took me about an hour and 1/2 to clean the roots before repotting it.

Hopefully it will grow well and show some signs of life.

Mine is going be looking like yours pretty soon , I'm going to leave mine dry till spring ,as long it stays firm . l

Think yours going be alright looks good and solid

I decided to repot it again in pure perlite (no drainage holes) and kept the water at the bottom about halfway up the glass jar. Over the last 4-5 days it started sprouting leaves

Cool perlite amazing stuff,keep updates coming ,mine has almost dropped all its leaves , start watering next month I think

I love these! I jut wish I could get my hands on one!

CasualSweater Check Miles2Go, that is where I found one of mine that has grown really well over the last few months. If he doesn't have any on his site now, he might have more in the Spring. Great guy and excellent plants

@tanpexoctics Willis Thanks! If you get the chance to show an updated pic of yours, I'd love to see it. Mine is pushing the leaves out more and more, it's interesting to watch it sprout leaves from an empty stem. Really strange plant, I love it.

Here you go Brendan yeah once they start growing they go Grow fast. Mine is still dropping leaves but still solid

Tan, that is awesome. How tall is it? The new pup branches at the bottom are great, that's going to grow into a really nice looking poissonii with the new growth

Brendan it's right at 20-1/4 inches tall from soil line . yeah it should really leaf out this growing season

Well decided to move into sunny spot and water today, First drink in 5 months at least, lost almost every leaf this time hopefully this schedule will work out good ,as didn't get much new growth last season as would have liked ..and does will be easy one to keep

Woah looking awesome Tan. Growing so vertical, looks great! Mine are still growing under lights, I had a problem with spider mites on the smaller ones but I’m hoping it recovers

My plant has grown it's best under lights ,so this season I'm leaving in house under lights and in front of South facing window. I think it gets to hot in my green house pretty sure there winter growers anyhow and I probally don't water enough so I'm probally making it go dormant when heats up . Here in Arkansas seems go from winter to summer no spring anymore

Be nice get some side limbs up little higher one day

Don't you just love the pest I have to deal with mealies white flys alot spidermites not so much. I finally gave up mixing concoctions and just started spraying straight 70% alcohol seems not to hurt nothing but the bugs. But I would try small place on some stuff just be sure ..it leaves behind dead bugs and no oil residue and sometimes spray water after the aclohol cause it's killing bugs on contact. I think 90% little to strong

Great to know about the alcohol Tan, thanks.

My two plants seem to like it under the lights too. Heat+Lights with water it seems. Looks like the side limbs are slowly making their way up taller. My two side limbs on the smaller one I have are slow but definitely growing. One is growing faster than the other it seems, a bit longer on one side like your side growths. Still really enjoying these plants, the contrast between their sculpted white base and the rubbery, weird leaves is really eye catching.

I notice on mine that it seems to show that it wants water when it's leaves droop. You notice that too? Might help with the watering schedule for you. I can tell it's not happy when it's green leaves loose their upright shape.

Just noticed your guy has three new limbs at the bottom? Looks like two on one side and a longer new growth on the other side. Going to look really crazy when it grows those side limbs more. White poissonii octopus.

I noticed my leaves would droop also

Yeah it didn't grow no new arms last year still got some base room for New growth and upper room I figure one day it bloom but from pics nothing extravagant

Tan, don't know how warm it is where yours is located, but my soil temp is about 75-80 degrees and made my larger one explode with leaves the minute I added a good amount of water.

Hope this helps, and hopefully one day either of mine will look as awesome as yours

Yeah that does help me I figure mine is around 70 and up so might slow me down

Yours growing like it is now want take long get there buddy

My Euphorbia unispina is starting to wake up. Watered it for the first time in 3-4 months. Let it get some nice rain water:).

Jan. 18

Jan. 31

Dog, this took Best of Show today. Not mine. I think you will appreciate.

Wow, that's bupleurifolia's a beauty! Mine is nowhere near as fat. Looks like there's another nice one behind it.

That is the same plant. Just huge.

Wow. Just... wow!

How old do you think the Hugh plant is?

Sharon

I will guess 7 to 10 years. This would be incredibly fast for most all of us. He uses a fertilizer system that produces monster plants in no time. It could be older, but he produces show size medusoid plants from seed in about 3 years.

Hmmm.... maybe I need to feed mine more.

Well looking my plant over this morning I think might be going to get some blooms this year . the green nodes are starting to grow in between the leaf scars

Awesome Tan, never seen blooms on these before, look forward to seeing what they are

There not much I believe not sure if it will or not but hoping so

Euphorbia poissonii starting to get his summer clothes on one of my fav's fore sure

Has 4 pups

Beautiful! How tall is it now?

Isde from soil to top not counting leaves 24 inch

measuring across the stem. 2-1/4 inch

He is getting big on me

Looks awesome man. Good job with that one.

Tan, he's looking healthy and great! I remember you posting about that great pot when you put him into it. I love all the pups along the bottom. It's funny how they creep up on you, I was bringing my two outside a couple of weeks ago, thinking how they haven't really gotten taller than I got them, then I just saw my pics from when I got them and realized how taller they are. Not like your awesome monster, but definitely growing more than I thought. I'll try to get some pictures uploaded of how they're doing. I repotted my bigger of the 2 a week or so ago, and he's sending out big leaves now in full sun :)

Brendan glad to Here yours still doing fine they are nice plants

Pics be nice when you get around to it

Yeah I like take pics and look back to see how they have progressed

Here's the bigger of the 2 I have. Just repotted him after he started showing green on top a month ago. Gone through a lot of euphorbias this past year....but these guys might still be my favorites. Not as giant as yours Tan..but still growing, so I'm happy. Maybe I don't water them enough under all my lights during winter. You water yours through winter Tan or let them rest?

Brendan yours is looking good

Nice color on leaves and stalk

When weather starts getting close to the 40's at night I bring mine in and let it go dormant . no water till next growing season gets close

I do keep it watered well when growing and it seems to like it.

I'm like you these are one of my favorite Euphorbia's

Here is a pic of my E poissonii waiting on the rains to come

Going on 4 months without a drop water and is just as firm as when brought in .

They amaze me how well they can do without water

It is almost 27 tall now with 4 pups and one around 10 inch

How is everybody else's poissonii's doing

I got this poissonii a little over a year ago and its one of my favorite plants. We are in winter now so the foliage is a little rough. One day it will be big :)

Nice plant and i bet in that Florida weather it will get big fast

Been a cool wet spring here

My Euphorbia poissonii finally starting to get some leaves all my plants set back sacral weeks to a month on the growing season

May i know why are the leaves of mine falling off? Was filled with leaves a couple of weeks ago when i first saw it at the seller's place. Brought it homeand repotted it a few days ago and it was already half bald. I live in Malaysia so i dont think its going dormant any time soon.

Mine likes its water when it's in growth and full in leaf

If you have let it dry out since repot it more than likely thinks it time to go dormant

Don't get me wrong you can over water and leaves will stop dropping to

I suspect the repotting is why it's doing the leaf drop

I will bring mine in for winter here in the states around October and not water it till March ,it will loose all its leafs

Also they do need a dormant period which is actually summer when it's hot and dry .and grow during the winter months of South Africa

There nice plants

Isn't poisonnii from Madagascar? Is so, it's a tropical, summer grower, for the most part.

How're everyone's Poissoniis doing? Great to see all the pictures.

@tanpexoctics Willis, impressive! It's gotten huge and his pups look so healthy. Great job. How is he this year?

I had to give my two poissoniis to friends last year when I moved. Was able to find a new guy though. He's in a 6 inch pot and not too big yet but seems happy in the all sun here in zone 11a (used to be 5b)

Tan...I remember you repotting your guy. I'm debating whether to repot in a plastic container or a nicer ceramic/glazed pot like yours and pot him up a little bigger than he needs but make it mostly grit so I don't have to repot too soon. Tan, yours is in mostly grit from what I remember right? Think you said it likes water when it's sunny and warm out. This mix it came in dries very quickly on my deck.

It only gets near 40 degrees here in Dec. Might be able to leave it outside without water if that's the case.

Here's my new one-

Anyone growing Euphorbia Poissonii in the desert?
It's summer now here in Vegas at 110 degrees July temperature in the afternoon, should I put mine outdoors partially shaded? Anyone have a success growing them outdoors in hot dry weather?
I currently have mine indoors in east facing window, but it seems it keeps dropping its leaves. It's in a very gritty soil and I water it only once it is fully dry.
I have a lot of euphorbia collection, I'm just not familiar with this one. My Euphorbia Ammak, Trigona and white ghosts are thriving outdoors. I just don't know about this one.