As summer comes to a close, September is the perfect time to start planning your garden for the next year. Sowing flower seeds now ensures that you’ll have a garden bursting with vibrant colors come spring and summer. Here are 7 flower seeds to sow in September for the most glorious blooms next year.
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Table of Contents
Poppies
Why Sow in September:
Poppies are cold-hardy and benefit from fall sowing, allowing them to establish roots before the cold sets in. This results in stronger plants that produce more vibrant blooms in the spring.
Growing Tips:
Sow poppy seeds directly in well-drained soil, ensuring they get full sunlight. Keep the soil moist until seedlings establish.
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Sweet Peas
Why Sow in September:
Sweet peas thrive when planted in the fall. They can withstand cool winter temperatures, and early sowing leads to earlier and more abundant blooms the following year.
Growing Tips:
Sow sweet pea seeds in rich, well-draining soil. Support them with trellises or stakes as they grow tall. Water regularly, but avoid waterlogging the soil.
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Cornflowers (Bachelor’s Buttons)
Why Sow in September:
Cornflowers are resilient and love cool weather. Sowing them in September gives them a head start, allowing for an early spring display of blue, purple, or pink flowers.
Growing Tips:
Scatter cornflower seeds in a sunny spot with well-drained soil. Lightly rake the soil to cover the seeds and water gently. They are low-maintenance, needing little more than regular watering.
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Foxgloves
Why Sow in September:
Foxgloves are biennials, meaning they need one growing season to establish roots and foliage before blooming the following year. Sowing in September ensures stunning towers of flowers come late spring.
Growing Tips:
Sow foxglove seeds in partial shade, and keep the soil consistently moist. These plants prefer a cooler environment, making fall the perfect time to get them started.
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Calendula (Pot Marigold)
Why Sow in September:
Calendula can withstand light frost, making it an excellent candidate for fall sowing. It will bloom earlier and more vigorously in the spring when sown in September.
Growing Tips:
Sow calendula seeds in a sunny location with well-draining soil. Water regularly but avoid waterlogging the soil. Deadhead spent flowers to encourage continuous blooming.
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Larkspur
Why Sow in September:
Larkspur is a cold-hardy annual that thrives when sown in cooler weather. Fall sowing allows the seeds to germinate and establish themselves, leading to taller plants and fuller blooms the next spring.
Growing Tips:
Sow larkspur seeds in full sun or partial shade, in fertile, well-draining soil. Larkspur does not like to be transplanted, so direct sowing is best.
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Lupins
Why Sow in September:
Lupins are perennials that bloom in their second year. Sowing in September gives them plenty of time to develop strong roots, ensuring tall spires of beautiful flowers by next spring and summer.
Growing Tips:
Sow lupin seeds in a sunny area with well-drained soil. Lupins prefer slightly acidic soil and will benefit from a light mulching in winter.
Conclusion
By sowing these flower seeds in September, you’re setting the stage for a colorful and vibrant garden next year. These flowers are not only easy to grow but also offer some of the most glorious blooms, transforming your outdoor space into a floral paradise. So grab your gardening tools and start sowing!