These estimates for how long Tall Cottongrass takes to sprout, grow and harvest are from real observations from real gardeners, right around the world.
Days to Germination How long does it take Tall Cottongrass to germinate?
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Days to Transplant How long until I can plant out Tall Cottongrass?
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Days to Maturity How long until Tall Cottongrass is ready for harvest / bloom?
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Total Growing Days How long does it take to grow Tall Cottongrass?