Questions tagged [seedlings]

Small juvenile plants which have just germinated.

Technically, a is a young plant sporophyte that has developed from a plant embryo (which is contained in a seed).

A seedling will have an embryonic root, embryonic shoot and seed leaves. The seed leaves are different than adult leaves, and are usually a lot smaller and often a different shape. Plants are often classified by the number of seed leaves. Angiosperms (flowering plants) have one or two seed leaves. Monocots have only one pointed leaf, and include the grasses. Dicots have two (usually rounded) seed leaves. Gymnosperms can have more variation, for example pine seedlings have 8 seed leaves.

Use this tag for questions about caring for seedlings and any problems encountered. Seedlings are typically very delicate. They are susceptible to damping-off which is fungal mould problem that kills seedlings before any adult leaves can form.

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Could intentionally leggy seedlings followed by transplanting result in stronger root systems?

While researching how to save my leggy tomatoes, I've learned that they can have the extra stem buried during a transplant to "reset" the height, and this buried stem will then grow roots of its own. Assuming you could provide adequate light after…
Drake P
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How much watering is too much for seeds?

My translation of a local gardening newspaper: The soil mix needs to be slightly moist; however too wet a soil would rot the seeds. It is implied all seeds are somewhat susceptible. I attempt to keep the soil soaked about 30% of the time and have…
Vorac
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How can I help a newly sprouted seed lawn compete with faster growing clover?

I have exciting new grass seedlings sprouting, some weeds appear to be gaining: My basic questions: Is it better to manually pull the oxalis, or let the grass try and compete? If I pull, how much do I have to get out? Is it better to wait for…
Bryce
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What are the Chances to Get a Walnut Tree from Seed that Yields Similar Nuts as its Parent

I have read that most trees that are grown from seed turn up to be very different than the parent. For example, some sources claim that the chance to get good apples from an apple grown from seed is 1/25. However, I also read that self-fertile trees…
Badan
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How to detect Mosaic virus infestation in Hippeastrum seedlings?

If a seed was harvested from an infected Hippeastrum plant, it may happen that by handling the seed pod a virus was transferred to the seed while handling the mother plant and then touching the seed. The virus may remain viable in the germination…
Christmas Snow
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Seedling Identification, possible weed

Following seedling grew itself, most probably a non-flowering plant without seed ? But I do recognize cotyledons. This pot has healthy growing Jatropha plant. 25 September 2021 23 September 2021 : 15 September 2021:
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What is causing the black/yellow spots on my avocado tree?

My avocado tree (about 11 months old and started from seed) has started developing black and yellow spots on it over the past 2/3 weeks. I am unsure if it is being caused by mites, or some kind of disease. Thanks in advance to anyone who can figure…
Bob Bob
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I'm having trouble identifying this leaf!

This was supposed to be bamboo seed, but turned out to be what appears to be a deciduous, serrated leaf bush or tree. The plants are only a year old, so not any bark to reference... The seed was long and thin like a grain of rice of brown colour. I…
Hudsony
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Do my Forget-me-nots need more sunlight?

I planted them two weeks ago, a week later they germinated. Although two days ago I noticed that one was drooping and that they were a dull green. I'm not sure if they need more sunlight; I was thinking about hanging the pot and tilting it to phase…
Aly Garcia
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I need help with my first seedlings

The cilantro have grown a lot of true leaves but not so much the basil and oregano. I planted them all at the same time. I don’t know if im supposed to thin any of them out now and how exactly to thin them out. Also i planted them exactly 3 weeks…
Jana Brown
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Sterilising seed starting trays with rubbing alcohol

Is wiping with rubbing alcohol enough to sterilise seed starting trays or is bleach or hydrogen peroxide necessary?
Sam
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Cactus(Astrophytum) seedlings weather requirements

I live in Kerala, India, where the weather is humid dry. The temperature ranges from around 26 at night to 33 on daytime. My Astrohpytum seedlings are growing. They're 1.5 months old now. My questions are: Do they need strong(morning to noon, and…
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Entire apple seedling was eaten, but miraculously came back as two. Now what?

At the beginning of the pandemic, house bound, I decided I wanted to try germinating apple seeds from fruits I had consumed. After a dormancy, one of the seeds actually sprouted and I was obsessed with caring for it. It got about 6 or 7 inches tall,…
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When can potted Strawberry Seedlings be safely transplanted outside considering Squirrel attacks?

Southern California resident here. I have strawberry seedlings and would like to transplant them outside. How old should they be to avoid being eaten by squirrels? I've had days-old seedlings get their crowns crunched off by these little devils.
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What is this seedling I found sprouted in my sink?

I found a seed that had sprouted unnoticed in my sink. I never saw the seed. By the time I saw anything it was a sprout. Curious as to what it is, I planted it. The first two true leaves have now emerged. Any idea what this is?
Daanii
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