Ask a Question forum→Whats wrong with my horsetail (Equisetum hyemale)?

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Seattle, WA
canaan
May 18, 2020 1:55 PM CST
I have horsetail plants in planter boxes outside my southern windows in Seattle. They did great for a while, but over the last year, they haven't looked so good. As you can see in the first photo, most of them have gotten pretty yellow. Last Spring/Summer, I barely got any new growth. This Spring, I was excited to see lots of new stalks coming up. But as you can see in the second photo, the new stalks have started to turn white and die Sad They are in regular potting soil which I keep moist.

I can't find anything online to help me diagnose the problem because every source just talks about how resilient they are, how they grow like a weed in pretty much any medium, in varying light conditions and moisture levels. The only difficulty I've read about people having with Horsetail is how to contain it. I'm not a plant novice and I have lots of healthy indoor and outdoor plants. I'm perplexed by this typically super hardy plant. Any insight would be much appreciated.
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Name: Bea
(Zone 8b)
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bumplbea
May 18, 2020 2:10 PM CST


Not enough moisture could be one reason or and not enough nutrients. Planting horsetail reed a rich, peat moss-based potting soil mix combined with a smaller amount of dirt. The plant in the pot lacks the richness of a marsh or pond. Try placing in container adding appropriate mixes of soils to duplicate a bog garden.

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I’m so busy... “I don’t know if I found a rope or lost a horse.”
Name: Daisy I
Reno, Nv (Zone 6b)
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DaisyI
May 18, 2020 5:05 PM CST
bumplbea might be on to something, maybe it needs a soil refresh. This might be the year you take it all apart and start anew.
Life is not a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside, thoroughly used up, totally worn out, and proclaiming...."WOW What a Ride!!" -Mark Frost

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