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Shade Garden #895007

Asked March 20, 2025, 6:26 PM EDT

I have paid for plan and installment of a small garden on west side of my property and neither have grown as planned. The plants were insured and replaced without success. Also, my other garden in front of house need new plant material; it was installed 2008. It's a shade garden - astilbes mainly and I don't know how long they live. Generally this is a very healthy and beautiful garden area. The remaining property is bordered by pachysandra that is award winning -- also installed 2008. However, they have many brown leaves at moment and I'm hopeful with rain and sun they will get better. My question is whether Master Gardener can offer direction -- even services for fee. Thank you.

Anoka County Minnesota

Expert Response

Hi,

We are volunteers who answer questions on this forum. If you want someone to visit, you’ll have to contact a landscape company or maybe find an expert through a local garden center.

Do you have any photos of these gardens that you can attach to this email? That would help me try to answer your questions.

A few thoughts about your shade garden: while some plants are naturally short-lived, a difficult environment can shorten the life of even tough plants. In a shade garden, perennials are usually competing with tree roots for water. This is especially true with shallow-rooted trees like maples. In a situation like that, the tree will always win.

That  means you have to water regularly, especially in dry summers like we’ve had recently. If you don’t, even very hardy plants like hosta will fade away and eventually die.

Adding wood mulch to a shade garden will help hold moisture in the ground. Three inches is usually sufficient to protect the plants and discourage weeds. Don’t let the mulch crowd the plant stems; that can encourage disease.

Send those photos if you can. Good luck.

MJ Replied March 20, 2025, 8:30 PM EDT
Thank you, MJ

You are the first to confirm my suspicion — that is, about the Maple tree is in middle of west garden where plants have failed to establish.  A couple months ago, I had a tree removed and, at same time, working with my arborist, we decided to remove the Maple tree (that was showing signs of distress.). Perhaps the plants that were planted will return?  

I’ve attached photos of my yard.  It’s been full and colorful with astilbes, especially.  Many of photos display in the health years, and one you can see that it’s thinning.  I live by Mississippi River - soil was tested in west garden and it’s healthy some tendency toward sandy soil.  

Thanks again - 
Joyce Gudding




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Joyce GuddingTest Photos 012.jpegIMG_3247.jpegIMG_3981.jpegIMG_1110.jpegTest Photos 014.jpegIMG_6118.jpeg
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On Mar 20, 2025, at 7:30 PM, Ask Extension wrote:

The Question Asker Replied March 27, 2025, 2:26 PM EDT

Your gardens are beautiful, Joyce. It's always sad to lose a big tree, but your plants may do better when they're not competing with those roots.

If you now have shade plants growing in sun, don't forget to water when it is dry. And be patient this spring -- many of those plants may still be sleeping. I am in Minneapolis (urban heat island) and a few bulbs and rhubarb are just showing growth.

Good luck!

MJ Replied March 27, 2025, 5:36 PM EDT
Thank you!
Joyce
Sent from my iPhone

On Mar 27, 2025, at 4:36 PM, Ask Extension wrote:


The Question Asker Replied March 28, 2025, 8:20 AM EDT

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