What the heck is a well drained yet moist soil?

by Doug
(In his Garden)

Epimedium rubrum (yes, it likes well drained, yet moist soils but survives in dry soils)

Epimedium rubrum (yes, it likes well drained, yet moist soils but survives in dry soils)

Epimedium rubrum (yes, it likes well drained, yet moist soils but survives in dry soils) Epimedium versicolor sulphureum

How is it that garden writers can blithely write such potentially conflicting terms “moist but well-drained” without suffering a conscience attack?

Just what does this term really mean to the average gardener?

The secret here is twofold. The obvious first thing is that there is no standing water, the soil is “well drained”. Water is not allowed to stand around the crown of the plant or the plant will die.

This eliminates most heavy clay soils and gardeners who want to succeed with perennial plants will have to amend their drainage and soil structure or kill many perennials year after year.

This is not negotiable I’m afraid; plants are not like the machines we’re so used to programming. Plants want the soil conditions they are genetically programmed to accept or they’ll be outrageous and die.

The second point is the component of “moist”.

How can you have a soil that is moist but is well drained? Aren’t these mutually exclusive?

Not in nature they aren’t. If you have a soil that is high in organic matter, then you have a soil that holds moisture very well. The more organic matter it has, the more moisture it holds.

Excess moisture drains away quickly because of the “well-drained” nature of the soil. So, we have a soil that is high in organic matter holding lots of water but any excess water that would rot the crown is drained away.

This describes an organic woodland soil very closely and if you have a shade garden then the best thing you can do is start adding compost and ensure the soil is the best you can make. Add organic matter every year. And keep a mulch on top of the soil in climates like the northeast where slugs don't rule the garden.

Your plants are depending on you to make that moist but well drained soil.





Comments for
What the heck is a well drained yet moist soil?

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Artificial Soil
by: Doug

Jo - it's Promix, Siunshine Mix, any soil mix that is made from peat moss as the main ingredient.

artificial soil
by: Jo Boehm

Doug I have not found anyone who kows what artificial soil is. They come up with artificial sod.

How do I make my own artificial soil? What can I use as a substitute?
jo

That explains it!
by: Kate

I am starting to realize that the new house I bought has WET, poorly drained soil: standing water when it rains, then dry and hard once it's been dry a few days. (By standing water, I mean that my neighbor has a sump pump in her yard to remove the water before it floods her basement and my yard.)

Is my best bet going to be raised plant beds and papyrus? Will a rain barrel help?

centered posts
by: Doug

Actually - it's all left centered already and shows as a center document. No idea why it's disappearing on the screen. If you're referring to email or rss feed, then that's out of my control and inside your system.

Center your blog
by: Anonymous

Enjoy reading your post, but can you move the material into the middle of page? Really hard reading when I have to guess if there is a letter/word missing.
Thanks

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