Sunflower Plants


Paylay21193 added on July 20, 2016 | Answered

Is it too late to thin out sunflowers after they begin to put on heads? I planted an acre of them but came up really small.

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Certified GKH Gardening Expert
Answered on July 21, 2016

Yes, you can thin your plants as young seedlings, then again at 12 inches and a last thinning can be done when the plants are 2 feet tall.
This will help you develop the largest heads for seeds.
You can cut the plant down if pulling will disturb the other plants roots.

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