名媛直播

Absolute beginner at 名媛直播, learning a lesson for his lofty goals...

My Giant sequoia seedlings seemed to be growing well until a week ago, even developing their second set of cotyledons. But last Wednesday I found that one had fallen (left image). As of today, the fallen seedling has died completely. The one it fell on has also withered (right image).

On Sunday, I noticed that the tips of the second-to-wither seedling’s cotyledons had turned upward. By Monday, they were shrivelled, and now they are drooping and lifeless. *Unfortunately, all five of my seedlings have the first sign: at least one cotyledon with the tip turning upward, as if flattened.

I grew them in a grow kit beside a south-facing window, and in the afternoons brought them to the west window for a bit more light—though, it’s been cloudy the past couple weeks. When watering the kit, I made sure it never got too soggy or dry.

On Saturday, as they were all crammed in the tiny grow kit, I transplanted them into a larger pot, which was a mix of cactus soil and potting mix, and gave them water.

I blamed the first one on the fact that it was growing so close to the edge of the kit. But now, that is unlikely. I’ve done some research, and it seems that damping off or root rot are probable causes (though NO mold is visible on the crown, stem, or base). I’ve put the remaining 3 under a grow light and near a fan, though the breeze is not strong. Since all the seedlings show turned up cotyledons, is there anything I can do? Would hydrogen peroxide help. I have a 3% bottle, but am unsure of how to administer and in what ratio of dilution. I’ve also read of using cinnamon.

Any help would be much appreciated.

*Mistake: 35% hydrogen peroxide

I've been on other sites and it seems important to mention that, when I dug them up to transplant, I didn't notice any root rot, although I wasn't looking carefully and they were covered in soil. Too, the one that fell and the first one to die had a kink in the lower part of its stem.

First of all. Stay away from so called bonsai seeds. Its a myth, there are no such things.

For beginners I would say that locally hardy mature trees from garden centers, your backyard or mabe your friend or neighbours gardens is a better choise. Seeds take 10 years or more before you can start practice bonsai skills on them.

Your seedlings proboably died of stagnant and dry air and lack of light. What we call comfortable living room conditions are a sertain death for most trees. The trees that will survive will never thrive and that is what you need in order to turn them into bonsai. Just stay away from any indoor related bonsai activity, except for bringing them in for work or display a few days. There is nothing that kills bonsai in the same extend as indoor conditions.

Do you have small fly's near the plants? If yes, those are funges gnats? They lay eggs in soil, and the larva eating the roots away from the plants.

Interesting that you mention that. I had a problem with small flies in my house, with some flying in numbers from the pot of other plants when disturbed or watered. I've been using glue traps to resolve the fly problem and it has been mostly successful. I haven't seen any flies near or coming from the sequoias... Would you always see the flies? Are there other signs/symptoms? What would you recommend to kill the flies and not the seedlings, if flies are the problem? Thanks.

The flies is not the issue. It is a symptom that just speed up the unavoidable.

I've put the three remaining sequoias 18 inches under a grow light used for garden vegetable seedlings. There is also a fan nearby, but not directly on them. Do you think this set up will be effective for the time being--or would it be better to just take them outdoors (I live in Toronto)? Maybe take them outside on sunny days and keep them under the grow light on rainy? If not yet, and if they survive, at what age should they be moved to wholly outdoor?

I dont know anything about Toronto climate. But if you are safe above freezing by now, just put them outside. First in shade and slowly let them get used to sun.

Toronto is pretty chilly in the winter, and never gets what we would call hot here in Alabama. Maybe comparable with Scandinavia.

Sequoia evolved in California and might struggle in the winters.