Not sure what you did wrong. Our screens average 12 to 14 feet tall. And they all stayed upright past Christmas. The screen behind my house is still standing past 10 feet as I type this. I see many issues with planting.
Over seeding, lack of weed control, to shallow planting depth and planting to late in the year are the 4 I see the most. The sorghum we get is as strong as anything I have seen.
The picture is from Dec 6th and it’s all up and doing great.
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