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The Beet: A Podcast For Plant Lovers

Causes of Leaf Wilt

The Beet: A Podcast For Plant Lovers

Epic Gardening

Education, Home & Garden, How To, Leisure

4.81.6K Ratings

🗓️ 6 October 2019

⏱️ 4 minutes

🧾️ Download transcript

Summary

Leaf wilt = underwatering...or does it? There are many causes, so let's dive a bit deeper to understand what causes leaf wilt.

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Transcript

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0:00.0

Hello everyone. Welcome back to the epic gardening podcast. Today we are taking a look at things that could be causing your leaves to wilt besides watering, besides the moisture of the soil.

0:14.0

And so the reality is leaves wilting

0:16.9

are a response to a number of different things,

0:21.4

not just the fact that the plant does not have water, right? So many of those things do lead directly back to water deficits in the leaf.

0:30.0

But for example, if you're talking about an urban environment like my own,

0:34.6

one of the biggest things that can cause leaf wilt is something called root anoxia.

0:40.8

And so an equals without anoxia is oxygen so without air. So soils that are a bit too

0:47.6

compacted, a bit too heavy in clay, those are really good candidates for root anoxia, roots that are deficient in oxygen, which means

0:57.7

that the roots aren't working the way that they should be working.

1:00.7

So roots are living, of course, and they require oxygen for survival.

1:04.0

That's something that a lot of people seem to not know or forget about.

1:08.0

They don't have the ability to photosynthesize, so they need oxygen from the soil or from the above ground parts of your plant.

1:14.7

If you have too much water, that will actually fill the soil pores and will drown your plant

1:21.6

roots and eliminate gas exchange, which means there's not enough oxygen in the

1:25.2

roots and the roots can't actually take up water despite the fact that there's more than

1:30.2

enough water actually in the soil.

1:32.5

So the leaves are still going to transpire,

1:34.8

they're still going to give off water.

1:37.6

And then eventually those leaves wilt

1:39.3

as their water content decreases,

1:40.7

but the funny part is there's plenty of water in the soil, the roots just aren't working to get it there, right?

1:44.5

But that's not the only one, and I know I've talked about that particular issue, maybe last week on the

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