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Sun, Mar 4, 12 at 10:34
| >Have one of my hosta gardens ( 5 years 10x100 ), along a driveway. Same garden has mature Norway spruce as a backdrop.
>Problem--shallow dense fibrous roots from the spuce I am sure are impacting the hosta growth. >Possible solutions.
>If I leave in place what is maximum top dress depth? >I realize either is not a permanent solution.
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Follow-Up Postings:
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- Posted by ken_adrian z5 (My Page) on Sun, Mar 4, 12 at 11:03
| all the top dressing is going to do ... is feed the trees roots... making it even more aggressive than it already is ... 3 inches sounds a bit deep on top dressing ... plus you dont tell us what kind you are thinking about ... there are a lot of hosta that will not handle being buried 3 inches too deep ... but again.. it might matter what you bury them with ken |
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- Posted by hmacflower 5 (My Page) on Sun, Mar 4, 12 at 15:17
| I would dig up the favorites, put compost and bone meal in a wider,deeper hole and replant a division (maybe half) if the hosta is big. Where there were really dense roots,under a maple,I buried a very large pot, screen on the bottom, filled with good earth & compost, then planted my hosta...that woked really well, trouble is, it's not easy to dig a large enough hole...this is when strong husbands come in handy! Heather |
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| Within a year the Maple feeder roots will go through the screen. They go down to about 16". If they can lift thousands of pounds of concrete sidewalks and driveways, a screen is no big deal. Only treated spin out fabric will deter the Maple or any other kind of tree roots. |
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