Best Outdoor Flower Seeds of 2025

The Cornflower Black Ball Seeds are a stunning addition to your garden. These tall annual wildflowers are easy to grow and produce beautiful, dark crimson flowers in clusters, reaching heights of up to 60cm. By planting them, you can attract beneficial insects and pollinators, enhancing your garden's ecosystem. Sowing these native wildflowers is also a fantastic way to provide food for birds and other wildlife. For the best results, plant the seeds in well-drained areas with full sun, and keep them watered to encourage healthy growth.

The Viola Cornuta Flower Seeds from Premier Seeds Direct are perfect for adding vibrant colour to your garden. For the earliest blooms, you can sow the seeds indoors 6 to 8 weeks before the last frost, ensuring they are covered with a fine layer of soil. Germination occurs in 10 to 20 days, requiring darkness for success. Keeping the soil moderately moist during this period is essential for healthy growth. For later flowers, you can directly sow them outdoors in mid-spring after the frost risk has passed, offering flexibility in planting times.

Purple Loosestrife Seeds are a delightful addition to your garden, offering stunning purple-red flowers that bloom from June to August. These tall perennial wildflowers thrive in damp conditions, making them perfect for areas like riverbanks and ponds. By planting these seeds, you can attract beneficial insects and pollinators, enhancing your garden's ecosystem. They are easy to grow and can be sown at various times throughout the year, providing flexibility for your gardening schedule.

The Premier Seeds Dahlia offers an excellent gardening experience for flower enthusiasts. You can sow the seeds from late winter indoors, ensuring a successful start with germination in just 7-10 days at the right temperature. Transplanting is easy; once the seedlings are large enough, you can move them to trays or pots for further growth. This product also allows you to gradually acclimatise the plants to outdoor conditions, ensuring they thrive when planted in the garden.

The Lady Marmalade Poppy Seeds from Thompson & Morgan offer a wonderful opportunity to grow beautiful golden blooms in your garden. This variety features semi-double flowers in striking shades of yellow and orange, making them perfect for adding colour to your beds and borders. Standing at 35cm tall, these poppies will create a bold display in your outdoor spaces from June to September. They are also hardy and wind tolerant, thriving even in poor, dry soils, which means you can enjoy their beauty with minimal effort.

The Welldales Angel Wings Seeds offer an easy way to grow stunning flowers that can brighten any space. Once grown, these compact plants make excellent potted additions to your home or garden. You will enjoy beautiful blooms in various pastel tones, reminiscent of orchids, and including shades of pink, purple, red, and violet. These seeds are straightforward to sow, whether indoors or outdoors, and they grow quickly, allowing you to enjoy your flowers in no time.

The Happy Green Shop Lobelia is a fantastic choice for garden enthusiasts. These seeds are easy to start and grow quickly, making them ideal for beginners. They are a popular annual flower that brings vibrant colour to a range of settings. You can use Lobelia plants in containers, hanging baskets, or as edging along your flower garden, which offers versatility in your landscaping. With a love for blooming all summer long, these plants ensure your garden stays lively throughout the season.

The Tulip Seeds by SpirWoRchlan are an excellent choice for enhancing your garden or home décor. These ornamental plants are easy to care for, making them perfect for both seasoned gardeners and beginners. You can plant them in various locations, such as your balcony or window, adding a splash of colour to your surroundings. Additionally, they make a thoughtful gift for friends who enjoy planting, allowing you to share the joy of gardening with loved ones.

The Giant Sunflower Seeds from Thompson & Morgan are perfect for adding a striking touch to your garden. These plants can grow up to an impressive 10 feet tall, making them a fantastic choice for creating visual impact. They are easy to grow, encouraging you to engage children in gardening by letting them nurture their own sunflowers from seed to giant. With simple germination and transplanting, you can place them almost anywhere outdoors. The seeds also come with helpful care instructions, ensuring a successful gardening experience.

The Lotus Flower Seeds are perfect for enhancing your garden or indoor spaces with their elegant blooms. Designed for gardeners of all levels, these seeds boast a high germination rate, ensuring a successful planting experience for everyone. You can enjoy the beauty of these flowers in tranquil ponds or decorative indoor bowls, adding a touch of sophistication to any setting. Additionally, they adapt well to various environments, making them suitable for courtyards, gardens, and balconies, bringing a calming ambiance wherever you plant them.