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Shrub/Hedge line replacement

thuja canadian hemlock zone 3b or 4a sandy soil

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#1 Cat385B ONLINE  

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Posted March 06, 2015 - 08:20 PM

When the ground thaws out, I'm pulling out my hedge line. This was planted in the spring of 2009, they are Green Giant Thujas. They were rated either Zone 4 or 5, depending on who you asked. I gambled, and lost. They have not grown the last two years. Last year, they never fully greened up and have brown tops on most of the plants the whole year. Now, with a colder than average winter with very little snow cover, they are toast. They get to meet the Bolens' rear hitch and a chain when the ground thaws.

 

Duluth 2012 079.jpg

 

I have 45 techny arborvitaes planted along the ditch on the side yard, but want something taller for the main yard because it borders a County Road that is busy at times. This is strictly a privacy hedge that I need to be at least 15 feet tall, interlocking without die back, and green year around.

 

The leading candidate so far is Canadian Hemlock.

6828.jpg

 

The line is on the low part of the property, but the soil is so sandy that it means little. It has flooded twice since I moved here, the longest being for 3 hours. In the first pic, south is slightly left of the direction the camera is pointed, so the line gets full sun until evening, when the white pines along the road block it out.

 

I plan on re-tilling, dishing out the soil so it is 6" lower than the lawn, laying down plastic cut back 4" away from the plant, and filling with mulch near level. Watering will be done by soaker hose.

 

If anyone has another plant to suggest, or experience with Canadian Hemlock, (good or bad) please chime in.

 

Shrub line is in red, technys are the blue line, black is the property line in the following pic. Sorry about the wavy lines, the wireless mouse must be dirty. (or I'm on my third Buffalo Trace)

dfgjuyurtj.jpg


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#2 propane1 ONLINE  

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Posted March 06, 2015 - 09:41 PM

Nice looking place, noel
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#3 Rock farmer OFFLINE  

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Posted March 07, 2015 - 05:22 AM

I'm no expert.
But, I'd say those plants should have grown!
Maybe bad soil, too much drainage or not enough water.
Maybe salt run off from the road.
Or those big pines are out competing them?
Or, maybe the way they were planted.
Did you trim them back when you planted them?

Why not just plant a new hedge line just out side of this one and leave this?
I think it sounds like you may be planting too deep?

In my area, that would be a lot of money for plants.
I'd suggest some expert help. Maybe the county ag. Extension or a landscape architect?
Joe
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#4 Cat385B ONLINE  

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Posted March 07, 2015 - 06:27 AM

Unfortunately Joe, it's just plain old winter burn.

http://www.windbreak...greengiant.html

On the plus side, the new whatever I plant should do well in the same location. The soil along that strip has been mulched, fertilized, and composted more than anything else on the yard.
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#5 HANKG ONLINE  

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Posted March 07, 2015 - 08:01 AM

What's he know Cat he  plants rocks , just kiddin


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#6 olcowhand ONLINE  

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Posted March 07, 2015 - 09:13 AM

I can't help you at all...I'm "shrub ignorant".  :D   But 15' is a tall order!



#7 Cat385B ONLINE  

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Posted March 07, 2015 - 09:40 AM

Specs on the Hemlock:

 

Botanical Information

  • Native habitat: Nova Scotia to Minnesota, south to Georgia and Alabama.
  • Growth habit: Pyramidal when young, this tree has a nodding leader unique among our native conifers. Branches become pendulous with age.
  • Tree size: Reaches a height of 40 to 70 feet with a width of 25 to 35 feet. It can reach a height of more than 100 feet. Growth rate is moderate.
  • Flower and fruit: Monoecious, inconspicuous. This tree has abundant small cones (½ to 1 inch long) that persist through winter.
  • Leaf: Soft, feathery evergreen needles are deep green with two parallel, whitish bands on the underside. They form a flat, horizontal spray on the twig.
  • Hardiness: Winter hardy to USDA Zone 3b.

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#8 olcowhand ONLINE  

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Posted March 07, 2015 - 09:42 AM

Looks like the Hemlock is a perfect candidate!



#9 Cat385B ONLINE  

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Posted March 07, 2015 - 09:53 AM

Looks like the Hemlock is a perfect candidate!

 

It would seem so, from what I've read it is very tolerant of pruning. In this picture, you can see the trunk is much larger than what it should be for the height of it.

 

canadian-8-15-hemlock.jpg



#10 Cat385B ONLINE  

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Posted March 08, 2015 - 07:40 PM

The last of the snow melted away from the base of the shrubs today. With high temps pushing 50 all week long, the frost should be out by next weekend. Which is when my new Cat 1 3 point should be here for the Bolens. It will make for a good first test to pull out 45 shrubs. I love it when a plan comes together.



#11 LilysDad ONLINE  

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Posted March 09, 2015 - 06:31 AM

It would seem so, from what I've read it is very tolerant of pruning. In this picture, you can see the trunk is much larger than what it should be for the height of it.

 

canadian-8-15-hemlock.jpg

Do you want to have to be pruning it all the time? A few folks in my town have hemlock trees. They are huge(they are very old.) and they drop cones every time there is a heavy wind.



#12 Cat385B ONLINE  

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Posted March 09, 2015 - 08:30 AM

Yes, I do. If I can squeeze in 12 hours on this site a week, I think I can swing a day of pruning per year.

Do you have any pics of the large ones?

#13 Cat385B ONLINE  

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Posted March 14, 2015 - 02:42 PM

Shrubs are out. I need to re-till, dig out some dirt so it's dished out, and be ready for 48 Canadian Hemlocks. I will plastic them, put in 3-4" of mulch, and use soaker hose laid in the mulch.image.jpg image.jpg image.jpg

The shrubs inline towards the back left of the last pic are techny arborvities, they will stay. Only the 'don't like subzero thujas' are gone.
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#14 KennyP ONLINE  

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Posted March 14, 2015 - 03:12 PM

Good luck with them!


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#15 olcowhand ONLINE  

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Posted March 14, 2015 - 03:16 PM

Looks like a nice place you have there Scott!  :thumbs:


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