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May 26, 2015 8:59 AM CST
Name: Jeanne
Lansing, Iowa (Zone 5a)
Birds Region: United States of America Vegetable Grower
How does loosestrife spread? By seed or by roots? Can you control it by putting it in a pot and then planting the pot in the ground if it spread by roots.
Yard decor, repurposing, and flowers,
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May 27, 2015 5:54 PM CST
Indianapolis (Zone 5b)
It spreads by roots/rhizomes. The roots creep under and sometimes over obstacles and then sprouts from where ever the roots grow. They are pretty aggressive. I have never tried planting them in a container and burying it, however I am sure that would keep them in check.
Last edited by Shade May 27, 2015 5:55 PM Icon for preview
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May 27, 2015 6:30 PM CST
Name: Arlene
Southold, Long Island, NY (Zone 7a)
Region: Ukraine Dahlias I was one of the first 300 contributors to the plant database! Houseplants Tomato Heads Garden Ideas: Level 1
Plant Identifier Photo Contest Winner: 2014 Million Pollinator Garden Challenge Celebrating Gardening: 2015
Maybe...if the bottom five inches of the pot was solid cement. It's determined to spread.
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May 28, 2015 5:05 AM CST
Name: Jeanne
Lansing, Iowa (Zone 5a)
Birds Region: United States of America Vegetable Grower
Thank you Shade and Pirl. If I ever get the chance to try Loosestrife, I will give it a try in a pot planted in the ground.
Yard decor, repurposing, and flowers,
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May 28, 2015 6:44 AM CST
Name: Caroline Scott
Calgary (Zone 4a)
Bulbs Winter Sowing Plant Lover: Loves 'em all! Peonies Lilies Charter ATP Member
Region: Canadian Enjoys or suffers cold winters Million Pollinator Garden Challenge Garden Ideas: Master Level
I think it also spreads by seeds, so you would also need to deadhead the flowers to keep it from spreading.
I had one plant show up in my yard even though there were no others around.
I expect the seed came in a mix.
Last edited by CarolineScott May 30, 2015 10:15 AM Icon for preview
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May 28, 2015 8:00 AM CST
Name: Arlene
Southold, Long Island, NY (Zone 7a)
Region: Ukraine Dahlias I was one of the first 300 contributors to the plant database! Houseplants Tomato Heads Garden Ideas: Level 1
Plant Identifier Photo Contest Winner: 2014 Million Pollinator Garden Challenge Celebrating Gardening: 2015
Ours only spreads by those endlessly energetic underground rhizomes. This is very valuable information for those who have never grown it:
http://www.missouribotanicalga...

When I get to digging out more of it that strayed, I'll take photos of the root system.
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May 28, 2015 5:39 PM CST
Indianapolis (Zone 5b)
I have never had them spread by seed either. Those rhizomes are pretty tenacious though.
Avatar for whisperingsage
Aug 10, 2017 5:04 AM CST

I have read it is edible. I am interested in forage for sheep and goats so I think they could easily keep it from doing too much harm.
Does anyone have a link to it's forage qualities? Also since it isn't known for being drought tolerant, wouldn't it just die if it is not being watered? ( I am in the great basin, high desert, everything here needs to be watered).
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Aug 10, 2017 9:29 AM CST
Name: Rj
Just S of the twin cities of M (Zone 4b)
Forum moderator Million Pollinator Garden Challenge Plant Identifier Garden Ideas: Level 1
I have it in my garden, it is aggressive, however it is containable. So much of the "aggressiveness" in any plant depends on the climate, sun,shade etc. This year with all of our rain and cooler temps the Loosestrife seems to have been knocked on its heels. My containment consists of mowing it down if it gets into the grass or pulling it.
I like the way it looks!
As Yogi Berra said, ā€œIt's tough to make predictions, especially about the future.ā€

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