OK, guys, here are a cross-section of what I have. These plants are anywhere from 4" up to 8" tall. Most are single-trunked but several have two branches and one has three branches. These were all germinated over a 7 day period, the first week of June. Some have skinny trunks and some have fat trunk. These are all in the solarium and get lots of natural light.

Sixteen out of 19 are in 3" or 4" clay pots. The leaves seem to still be actively growing but some of them are sort of "beat-up". I found out that these adenium don't seem to care for my insect mix. I sprayed some on a plumeria adjacent/over the adenium, and the mix dripped onto the adenium leaves. I also found out that adenium leaves don't seem to like to be touched by other plants. The leaves of that plumeria and a couple of fiddle leaf ficus plants touched some of the adenium leaves. The adenium leaves that were touching other leaves seem to have developed those brown spots. The spots could have been caused by something else as well, or a combination of things. I don't know.

@RickCanada and @Ursula, and others, tell me about elevating some of these plants. I had a doctor's appointment today and that messed up my timing to re-pot these adenium. I plan to do so tomorrow, re-potting them all into 4" air-cone, plastic pots.

Wow, Ken! They really took off on you! Mine are trying to go dormant /dropping leaves along with my adult Adeniums, even though they are in the greenhouse, warm and sunny.
Whatever I do with mine will surely have to wait until leafing out signals Spring for them.

Humm, maybe mine will go dormant then? If yours are going dormant, I imagine mine should too. Do you cut the tap-root, Ursula?

No, I don't think so, regarding cutting of the tap root. Eventually I will probably raise the plants in their pots to expose more of the caudex.
Will they go dormant for you? I don't know. It seems all my fat plants/caudiciforms have distinct seasons under my conditions here in NJ, these baby Adeniums are no exception.

We'll see how my "experimentation" goes. Though I only have 18-20 plants, I will now have them growing four different ways:

1. Standard, growing at the level that they grew as seedlings
2. Standard, growing at the level that they grew as seedlings but with the tap-root cut
3. Elevated, and
4. Elevated, with the tap-root cut.

Ken,
I would plant these at the same level until they get larger and put on some natural girth in trunk. Other than if you are going to try some root pruning of the tap root.
I have found that unless they are in active growth (putting on new growth) that it is not a good time to prune. They recover very quickly when in active growth.
They can be in a state of dormancy and still have their leaves. Not necessarily leafless.
Rick

Rick, so far mine are still actively growing, at least to my eyes. Perhaps they have slowed down a bit from their summer growth but if so, not a lot.
The one that towers above all the rest (I have named her "Green Giant") sure doesn't seemed to have slowed any. That particular plant has around 20 leaves. I wish she was one that had branched but perhaps that all comes later.

Yes, they all seem to have a mind of their own. I have one that is a couple years old and it is about 18" tall and branched at that point. Many seem to branch early on. I have chopped quite a few of my 2& 3 year old trees down and they branch out really well.
I like to leave this until the spring when I see them really starting to grow. This way when the new branches come from the nodes, they seem to produce more than apposed to when I do in the fall.

This is the nice thing about having many seedlings. You can experiment and see how it goes. I grafted some 8mth old seedling together of two different species of adenium, because I wanted to give it a go and they both took.

Rick

Ken

You started all those in June '15?
Are these your first Adeniums?

They are looking good, Ken! I've also found they don't like to have the leaves touch anything. We travel from AZ to NM regularly and I have to cart my big Adenium back and forth. In the beginning I wasn't as careful, and other things touched the leaves, or the leaves brushed the sides of the truck bed. They did turn brown, and some creased badly. Now I keep it away from everything. I'm sort of surprised that they are that touchy when they seem to be very hardy in other regards. Do the rest of you have this problem?

That is odd. @Rainbow might know - she grows a gazillion of them.

DavidLMO said:That is odd. @Rainbow might know - she grows a gazillion of them.

True. I think most of hers are outdoors all year. Maybe I'm just being ultra picky and protective of my big baby. I notice every brown leaf edge and hate it when they get scalloped leaves for one reason or another.

I only have one at this point, so know what you mean. I am starting several from seed. Another new experience for me.

Like David said, I have a gazzilion of them. So because of that, I am not concerned when a tree has a leaf that show brown or yellowing edges.

Incidentally, Karen, did any more leaves on your tree turn brown like the one you posted? http://garden.org/thread/view_...

Yes, David, I started all of those seeds............thanks to @Ursula's gift............on June 1. By the 15th, all that were going to sprout had done so.

Notice that the leaves have not been touched and there is not a single brown spot on any of them.

Mid-August, 2015


Mid-September, 2015

Wow Ken ... I must say you DO have the touch!! Thinking of your seed to bloom Plumeria in 15 months. That seems pretty impressive for 7 months. But then again I have not grown them from seed and given when you planted them you nailed it given your zone.

Ursula - You obviously have a lot of plants? Where ever do you store them in Winter? BTW - If you ever find that again you have far too many seeds taking up space .... :-))

Nice looking seedlings Ken. Well done. Hopefully they Will bloom soon.

Oh, oh @Ursula. The cat's out of the bag.

I got my bucket of adenium potting soil, my air-cone pots, scissors, cane-stakes, ties, and my labels. I am ready to get those adenium re-potted, ending up with four categories of techniques. The labels will keep me straight on what's-what. I am going to photograph as I go, not that I have any particular experience or knowledge in addenium, but simply to show what a novice does. I will try to put together an article using those pictures, captions, and explanations.

Ken, that's ok!

Where do I keep my plants in Winter?
I have a nice attached greenhouse to keep my Orchids indoors over the Winter, Succulents and Cacti and some etc. are in a sunroom, then the approach room to the greenhouse and a few C & S are in sunny Living room windows. I am quite organized!
And yes, I have some more Adenium seeds from this Summer's seed horns, which popped in December. Right now we are in freezing mode here in NJ, not sure if they can take it, so I would wait until Spring to send them out?