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Plants for silty soil

Posted by maplecat 8 (My Page) on
Wed, Jul 14, 10 at 17:28

I am in the middle of clearing ground for a new garden, which, of course, won't be planted until cooler, mid-end Sept weather. I live on the plataeu by Enumclaw, and my soil seems to be pretty good, probably from a combination of old horse pasture and glacial plane. The thing is, in certain spots the soil changes to a really fine textured, almost silky stuff. I think this is described as silt, but am not sure about this. It does seem to hold moisture and drain well. Full sun. I was thinking about planting yarrow (Paprika) and Sea Holly, mainly because that is what I have (plenty, in pots). Are there better perennial flowery type plants that will work? I tend to like the bigger things, 3 to 5 feet. I can amend with compost and chopped leaves if necessary, but this seems like the type of soil that you can amend until the cows come home and barely change the composition. Thanks for any suggestions, ps I am a looooong time reader, but I don't post much. :)

Follow-Up Postings:

RE: Plants for silty soil

  • Posted by bboy USDA 8 Sunset 5 WA (My Page) on
    Thu, Jul 15, 10 at 1:35

What was growing on it beforehand might hint at what would like to be planted there. If it gets damp (puddly) in winter yarrow and sea holly might not like that.

RE: Plants for silty soil

mostly buttercups and running grass. I don't think there is standing water in the winter, but it is where the snow melts last. Now that I think about it, it may be too damp in the winter for my choices. Back to plant searching. Thanks for the reply, what not to plant is sometimes more important than what to plant. I appreciate the help. MC

if this message appears twice, please excuse, my browser seems wonky this morning.

RE: Plants for silty soil

  • Posted by bboy USDA 8 Sunset 5 WA (My Page) on
    Thu, Jul 15, 10 at 21:06

Creeping buttercup likes raw, clay-like soils with good levels of nitrogen. Might indicate those are good spots for other perennials adapted to damp ground. You might be able to do very well with certain tall, showy kinds like you enjoy. Look at discussions of waterside plants, moisture gardening, bog gardens etc.

RE: Plants for silty soil

what about changing the grade here and there, focus the moisture?

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