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Clematis Plants


Zone DENVER CO 80237 ZONE 5 | MOEY8105 added on May 26, 2018 | Answered

I have 2 Ernest Markham Clematis which produces red magenta flowers.First 2 years they were growing fine,last year and especially now they start to have yellowing leaves starting from the bottom(i guess it’s called wilting?)-last year i pruned the dead ones,kept watering but it didn’t help .Soil is clay slightly alkaline,faces west so plenty sun after 2 pm-is there anything else i can do to prevent this from spreading to the rest of the vine?
How can i prevent it from happening in the years to come?
Thank you for your advise.much appreciated.

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Certified GKH Gardening Expert
Answered on May 28, 2018

This is, actually, a simple nutrient deficiency. This is more than likely in need of magnesium and calcium. Dolomitic lime will correct this, but you should fertilize once per year for the best results, as well, although it isn't completely necessary.

This article will help with the care of these: https://www.gardeningknowhow.com/ornamental/vines/clematis/growing-clematis.htm

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