Bedding
Growing Cosmos in Pots Which cosmos varieties work best in containers, what size pot you need, how to plant, water, feed, and support them, and four planting schemes to try. Everything you need to grow cosmos well in pots, from a single Xanthos in a terracotta bowl to a full-height mixed planter.
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Bedding
Cosmos are the easiest cut flowers you can grow. Plant our hardened-off plugs after the last frost, give them sun and poor soil — seriously, don't feed them — and they'll flower from July until October. Pinch out the tips early for bushy plants covered in blooms, then cut for the vase as often as you like. The more you pick, the more they flower. This guide covers planting, pinching, deadheading, container growing, and a month-by-month calendar to keep you on track all season.
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