Surface mold on seedlings11/24/2023 ![]() I have a feeling I did this years ago, but I can’t fully remember. I’ve seen a lot of people recommend a light dusting of cinnamon powder. You can simply scrape white mould off with a knife and throw it away. The different moulds are treated differently: White Mould How Do I Get Rid Of The Mould On My Bonsai Seeds? ![]() It’s basically reducing the chance of damping off. This is also why you can buy seed heating mats and why people say they have more success when they use these mats. However, if your house is colder than normal, or it’s during winter, you really run the risk of having damping off. Most seed suppliers will suggest you germinate your seeds at room temperature, which is normally warm enough to avoid it. One of the main causes is for damping off is the cool temperatures mixed with dampness. However, it actually prefers growing in slightly lower temperatures than white mould. It also likes the stagnant air and darker conditions too. You can only try and stop it affecting the rest of the seedlings.Īs the name suggest it likes damp conditions. At this point you can’t really save the seedling. The bottom of the stem will start to grow brown and also start to shrivel up. You will notice it with very young seedlings. This mould is very bad for plants and usually kills them. You will only realise it is there when it starts to affect the plants. These are the condition that seeds also like to grow in, so this is why it is so common. It is also enjoys stagnate air and darker conditions. It loves to grow in damp, warm conditions. This mould is unsightly, but it harmless to the plants. This is what you have probably noticed on your seeds and why you’re reading this. This is the mould that grows on the surface of the soil, and as the name suggests, is white and it’s also fluffy. The two main type of mould we will come across when growing seeds are white mould and Damping Off Disease (which doesn’t sound very mouldy, but it is what causes it). They can grow in slightly different conditions and some are more harmful than others. To understand what causes the mould to grow, we first need to understand that there are lots of different kinds of mould. (You can read more about – How Do You Know If Your Bonsai Seedlings Are Healthy?) What Causes Mould To Grow On Bonsai Seeds?Īs I said, mould spores are everywhere, especially in soil. So mould is actually really important and it’s a sign that your soil is actually really healthy. The trees need the mould and the mould needs the trees. This is how they get nutrients from the soil, which is actually made up of their broken down leaves. In nature the mould breaks down the dead matter and the result of this process is that nutrients end up being released from the matter back into the surrounding soil. So moulds are just further breaking down the organic stuff in the soil (like pine bark, or peat moss). Soil is made up of organic matter, which is the polite way of saying dead matter. Moulds are just a bunch of microbes that cause biodegradation, which means they just break down dead matter. Annoyingly for us, those conditions are the same ones that seeds also love to grow in. However, they really only grow like crazy when they are given the right conditions. Mould spores are everywhere, you can’t escape them. If your seeds have germinated and you have potted them and they are growing …but you are now seeing mould on the soil surface, this is less of a worry.Įven if your seeds have germinated or not, mould on the soil surface is not going to affect them. There is still a chance they will grow since there seems to be no real solid evidence to show otherwise (maybe one day I will try this experiment myself), but I think the chances are low. You could then either throw them away (which I have done) or try and wipe the mould off with a damp cloth then plant the seeds separately. If I were faced with mouldy seeds in the fridge, I would separate them from the rest of the non-mouldy seeds. So there is al lot of conflicting evidence on this. Others say that it’s a sign the seed is not viable and the mould can also enter the seed and damage it or prevent it from growing. Some say it’s normal and can actually help the seeds germinate as the mould and seeds have some sort of symbiotic relationship. I feel that if mould is growing on your actual seeds, while in the fridge, this is a bad thing. I can’t find a definitive scientific answer on this, so take this information as my opinion, not fact. If you unwrap your seeds to find mould, this for me, is worrying. Where and when you see the mould can make a difference: Seeds In The FridgeĪ common way to start seeds is to soak them, wrap them in a paper towel, bag them up and place them in the fridge for a couple of weeks. Conclusion Will Mould Kill My Bonsai Seeds?.How To Prevent It From Happening Or Returning.How Do I Get Rid Of The Mould On My Bonsai Seeds?.What Causes Mould To Grow On Bonsai Seeds?.
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