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Using a pencil tip, push straight down in the soil about 1 to 2 inches deep, making a shallow hole. Look for a cosmos shoot that has 3 to 5 leaf nodes on the stem. Cut under the last leaf node. At the last leaf node, carefully cut off the leaves, leaving the node intact for new growth.
3 days ago · Thin to 12–18 inches apart when seedlings are a few inches tall. Depending on the variety, cosmos can grow anywhere from 18 to 60 inches tall, so plan accordingly. If you are growing cosmos from seeds, be mindful that it takes about 7 weeks to first bloom. After that, your flowers should continue to bloom until the first fall frost.
How to Plant Cosmos. Here are some steps to follow when planting cosmos flowers: Choose a sunny location: Cosmos flowers require full sun to thrive, so choose a location that receives at least 6 hours of direct sunlight per day. Prepare the soil: Loosen the soil to a depth of 6 to 8 inches (15 to 20 cm).
4 days ago · The soil for Cosmos flowers should be well-draining and rich in organic matter. A slightly acidic to neutral pH (around 6.0 to 7.0) is ideal for promoting healthy growth and vibrant blooms. Proper soil drainage is crucial, as Cosmos plants are susceptible to root rot if left in overly wet conditions.
Sep 7, 2024 · Growing from Seed vs Transplanting. Cosmos flowers are easy to grow, whether you start from seeds or buy young plants. Starting from seeds is cheap and fun. Sow cosmos seeds directly in the garden after the last frost. Plant them 1/4 inch deep and 12-18 inches apart. They’ll sprout in as little as 7-14 days.
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Mar 17, 2022 · Cosmos flowers fit both of these requirements perfectly – they don’t require much care, but wow, do they ever make the garden feel like a haven of life and beauty! In fact, one of my favorite ways to relax on summer days is to watch bees, butterflies, and even hummingbirds foraging from the showy blooms on my cosmos plants.
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Nov 2, 2023 · Plant cosmos in a pot filled with well-draining potting mix. Make sure the container has large drainage holes. Like all potted plants, cosmos in containers require more frequent watering than inground plants, as often as daily in hot summer weather. Repotting won’t be required as cosmos are annuals.
