Known for their vibrant and colourful blooms, cosmos flowers come in a variety of shades. They are an excellent choice for attracting butterflies and pollinators to your garden.

There are several reasons why cosmos are a great choice for your garden, they are quick and easy to grow, making them a reliable source of flowers. They are also the typical cottage garden flowers reaching full maturity in about two months with their long slender stems standing tall in your garden.

gardening pink cosmos flowers in the morning.

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How to cultivate cosmos flowers

Because they grow fast, they typically germinate in 7 to 21 days and will start their flowering process in about 40 to 60 days. It is advisable to start seeds indoors, for four to six weeks but sowing them directly in the ground is also an option well after the threat of frost.

Cosmos flowers are also an excellent choice for cut flowers, offering an easy-to-grow, prolific source of beautiful blooms. Spacing the seeds closer to each other is recommended because you want your growing seeds to support each other as they grow. Just loosen the soil to a depth of a few inches, plant your seeds and cover them with soil.

When growing cosmos in pots, it’s important to ensure the container has drainage holes at the bottom. Cosmos plants cannot tolerate overly wet or soggy soil. When growing them in pots, it’s best not to enrich the soil, as this can cause the plants to grow tall, leggy, and droopy.

For the best growth and the best flowering, choose a location that gets full sunlight. Your cosmos flowers can grow in partial shade but will have fewer blooms. Hot weather is ideal for the cosmos, and they thrive in any humidity level. These flowers just keep a medium moisture and well-drained soils, and they will perform adequately.

Once established, you will not need to water your cosmos plants excessively. Where water is limited, these are the last plants requiring irrigation. Just water generously and keep the soil moist you’ll soon notice flowering as they grow.

Horizontal closeup photo of masses of green leaves and pink toned Cosmos flowers growing in an organic garden under a blue sky in Summer. Soft focus background.

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