Questions tagged [roots]

Plant organ that is typically below ground. Use this tag with questions about roots in general. How to prune, diagnose issues, encourage better root growth, etc..

Vascular plants have roots. These are an organ of the plant that lacks leaves (and nodes) that absorbs water and nutrients (typically from the soil), and anchor the plant to the soil (or host/ledge for an epiphyte). There are plenty of exceptions. For example a rhizome is actually a piece of buried stem. Similarly, roots can be aerial - especially in water logged conditions, and with epiphytes.

As well as being an essential part of most vascular plants, roots play an important role in the landscape, as they help prevent soil erosion.

There are a wide range of different root types found on various plants. For example a 'tap root' goes very deep to tap water in drought / low water table conditions. A 'stilt root' comes out of the plant's trunk a few feet up, providing support for the plant, and even allow very limited lateral movement of the plant. A tuberous root stores food or water - eg. a sweet potato.

Although barely visible, plant root systems can be very large, and as a general rule-of-thumb, typically mirror the extends of the above-ground foliage.

Use this tag for all questions about roots. For example, protecting them, pruning them, removing them, etc.

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Why did my carrots split in a way that looks like legs?

This is the first year I've grown carrots. What gave them legs? I have a theory that the seedlings merged together. I don't know if that is just silly or if carrots just naturally grow like this.
Fatmuemoo
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Why do plants root when placed in water, but die in standing water

A lot of plants need well drained soil. They're said to not like getting their feet wet. The explanation given is that the roots need oxygen; they will rot and die if they're in standing water for too long. But a lot of the same plants will root if…
Tim
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How far (on average) do tree roots extend out from the base of the tree?

I a looking to plot out my new garden site for next year and am wondering how far I need to be away from some nearby trees. The trees are a few different types (apple, oak, pine etc.) and anywhere from 20-40 feet tall. I am trying to see if there is…
Matt Rockwell
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Should I remove the tree roots coming from the neighbouring garden?

When I was digging out* a patch to grow veggies earlier in the spring I found big roots in the soil unconnected to anything in our garden. It looks like they're coming from some kind of palm trees planted right at the edge of our neighbour's yard.…
Lisa
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Why didn't my forsythia cuttings root?

In May, I took some greenwood forsythia cuttings, dipped them in a hormone rooting powder and planted them in rooting mix. The mix was kept moist all year. I had thought they had rooted because they began to grow rapidly and the new shoots hardened…
J. Musser
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How do I prune the roots of a rootbound plant?

This answer talks about pruning the roots of a plant when it has become rootbound. How easy is it and how do you go about it?
Tea Drinker
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Should a root-ball always be loosened when transferring a potted plant/tree into the ground?

I've always thought that the right way to transfer a plant/tree to the ground is to dig a hole twice as big as the root-ball, free the roots that have been growing in a limited space, and set it level with the ground. This way, the roots are free to…
Lorem Ipsum
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How far will pine tree roots spread?

I have a very tall pine tree in front of my house. I am about to start work digging up my downstairs floor and re-doing it. I'm just wandering if before I start I should look further into the roots of my pine tree, because it is very close to the…
keeley
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Should my spruce tree roots be covered?

This Norway spruce's roots have always been on top of the ground. The soil it is growing on is very hard white dry soil with a layer of decayed needles on top. It has been growing fine so far, but would it be healthier if I covered all the exposed…
J. Musser
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What are some edible plants (vegetable or fruit) that can produce roots in water?

I would like to know which edible plants can actually root from twigs and/or leaves put in water or a similar setup? Is it as simple as leaving them in water or do you need chemicals to induce rooting?
Stefano Borini
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Does my Sago Palm have root rot?

My Sago Palm (Cycas Revoluta) has weird-looking clumps in its roots. Is it a Phytophthora root rot infection? If not, what is it?
Jenny Lee
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What are the benefits of veg / fruit plants with grafted rootstocks?

Last year I grew aubergines (eggplants) and tomatoes with grafted rootstocks, and they actually produced a lot more veg than my other plants. Could someone tell me why it is done and why they produced more veg?
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Does pruning the tree slow root growth?

We have a cherry tree, and neighbours, which is only about 4 years old, and I would say about 5 metres high. Neighbours are worried that its roots might eventually damage supply/drainage pipes in front of the house, which are possibly about 6 6 -8…
user1154435
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Can I shave exposed roots from a Silver Maple tree to avoid damage when mowing?

We have large roots from a huge Silver Maple tree that are partially above ground and interfere with mowing. Can I shave them so the mower can pass over them?
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Is it bad practice to leave dead roots in soil?

Is leaving them in there better or worse than taking them out? What about for indoor vs outdoor? Is it okay to leave roots in a pot you plan to re-use soil for? In my mind I am mostly considering harvestable plants like peppers, carrots, lettuce,…
Enigma
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