I just joined this forum. Several years ago I raised some Adenium from seed and was relatively successful. I recently got some seed and hopefully they will be sprouting in a few days. I am in North Texas with temps currently from high 70s at night to high 90s during the day. Humidity has been anywhere from 50% to 80% from day to day. My question is on the amount of light for seedlings. Once they sprout, how much sun can they take or is it better for them to be under grow lights. I was thinking about putting them in morning sun and then either filtered shade or under grow lights in the heat of the day with additional time under grow lights after it gets dark to bring total light up to about 16 hours. I have looked through the forum and have not seen any info on lighting for seedlings. I know mature plants can take a lot of full sun, but I don't want the seedlings to get burned too much. I am retired and at home much of the time so I can monitor them and move them around. I also keep an eye on the daily weather so can modify my approach with the weather forecast. Thanks in advance for any thoughts on this.

Sunlight is best ...nothing else compares

Leave outdoors - the high humidity at night will be beneficial

After emergence - A few hours of direct sunlight will be okay ...if too shady, the upper most tops may tend to "bend towards the light" ....

Once plants grow at least 4 leaves ...then introduce to more and more sun gradually

Move indoors when night temps fall to 50° (sustained)

Deepsouth, thanks for the reply. First few seedlings have broken the surface. I am placing them in morning sun, afternoon filtered sun and so far they seem to be doing well. Recently it has been in the low 100s but by Wednesday should be mid 90s.

I ordered 9 different varieties of seed from Mr. Ko on ebay on August 11. They arrived on August 22. Very fast shipping. Each type was supposed to be 10 seeds but each packet had exactly 15. I planted them the same day, last Thursday. Saw first sprouts peaking through on Saturday and today on Monday there are a LOT of sprouts already up after just 4 days. Some of the varieties seem quicker than the others. Of the varieties that have sprouted so far it looks like an average of at least 90% germination. Well done Mr. Ko. I just hope they come somewhat true to the varieties that they ordered.

The other seeds off of ebay that I ordered from various sellers in July have pretty much been a bust. Many of the varieties have zero percent germination and total I got maybe 10 percent.

with seeds - it does mater how old they are ...

with such a low germination rate of 10%, would guess it has everything to do with how old the seeds were and how they had been stored since harvest .... Mr Ko's seed is this years harvest

old seeds will dry up like a raisin ...and once dry, no amount of water will revive them

if you walk into a garden center, and over to the seed rack - every packet of seeds there will have either have a: "packed on date", or "sell by date" ....unfortunately, many online sellers wont have that feature on whatever they sell .... either they do not care, or want to pass off what they know are old seeds

With that said, I would put Mr Ko on speed-dial

might also mention .... plants have a "season" of when they bear seeds .... USA adenium growers are just now entering the time of year when plants are bearing seed ... elsewhere, like anywhere along the equator - that "season" can almost be year long ..... and south of the equator, the growing season is just beginning

for the freshest possible seeds - always buy seeds in "season"

ebay used to have the words "caveat emptor" (buyer beware) on just about every page ....it is worth asking the seller "how old are these seeds" ?

if the reply is within a year .... the seeds might be fine .... anything over a year is a 10% gamble