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Cosmos Bipinnatus Seashells Mix

£2.29

An Heirloom variety from the 1800’s producing an exquisite display of tubular-petalled blooms somewhat similar to a sea shell in lovely pastel colours of white, pink, rose and crimson on tall and busy plants with delightful lacy fern-like foliage. The delicate foliage and colourful flowers make an outstanding background planting that blooms all summer long.

194 in stock

Description

Cosmos Bipinnatus Seashells Mix

Cosmos Bipinnatus Seashells Mix. An Heirloom variety from the 1800’s producing an exquisite display of tubular-petalled blooms somewhat similar to a sea shell in lovely pastel colours of white, pink, rose and crimson on tall and busy plants with delightful lacy fern-like foliage. The delicate foliage and colourful flowers make an outstanding background planting that blooms all summer long. Cosmos are easy to grow and literally thrive on neglect. Half-hardy annual, 4-5′ tall.
Cultivation Advice
  • Plant in well-draining soil with moderate fertility. Cosmos prefer full sun but can tolerate partial shade.
  • Aim for a neutral to slightly acidic soil pH, around 6.0 to 7.0.
  • Sow seeds directly into the garden after the last frost date. Ensure the soil is warm enough for germination.
  • Scatter seeds lightly over prepared soil and cover them with a thin layer, about 1/4 inch deep.
  • Keep the soil consistently moist but not waterlogged, especially during germination. Once established, they are somewhat drought-tolerant but benefit from regular watering during dry spells.
  • Apply a balanced, all-purpose fertilizer at planting time to support initial growth. Avoid excessive nitrogen that might encourage foliage growth over flowers.
  • Mulch around the plants to retain moisture and control weed growth. Maintain a weed-free area around Cosmos to reduce competition for nutrients.
  • Regularly remove spent flowers to encourage continuous blooming. Deadheading prevents seed formation, prompting the plant to produce more flowers.
  • While Cosmos Seashells Mix are generally sturdy, taller varieties may benefit from staking or support to prevent bending or breaking in windy conditions.
  • Cosmos are generally resistant to pests and diseases. However, monitor for aphids or spider mites. Treat any issues promptly with organic remedies if necessary.
  • If you wish to collect seeds, allow some flowers to mature and dry on the plant. Harvest seeds when the flower heads turn brown and store them in a dry place.
  • Cosmos Seashells Mix are annuals. In colder climates, collect seeds for the following year or replant new seeds after the last frost.
  • If the seedlings appear overcrowded, thin them out to provide ample space for healthy growth, good airflow, and to minimize competition for nutrients.
  • Prior to planting, amend the soil with organic matter like compost to enhance fertility, improve soil structure, and aid in moisture retention.
  • Pair Cosmos Seashells Mix with other pollinator-attracting plants like coreopsis, verbena, or bachelor’s buttons to create a vibrant, wildlife-friendly garden.
  • Water at the base of the plants in the morning to allow the foliage to dry during the day, reducing the risk of fungal diseases. Avoid overhead watering.
  • To encourage a bushier growth habit and more flower production, pinch the tips of young Cosmos plants when they are about 12 inches tall.
  • Routinely inspect plants for signs of stress, pests, or diseases. Early detection allows for timely intervention and minimizes potential damage.
  • Cosmos generally thrive without heavy feeding. Avoid excessive fertilization, as it might result in lush foliage at the expense of flowers.
  • Extend the blooming period by sowing new seeds every few weeks. This ensures a continual display of flowers throughout the growing season.
  • Observe how Cosmos Seashells Mix responds to changes in sunlight, temperature, and watering. Adjust care practices based on their specific needs for optimal growth.
  • Lastly, relish the intricate and unique beauty of the Cosmos Bipinnatus Seashells Mix. Their captivating and shell-like blooms add a whimsical touch to any garden setting.

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