Best Zinnia Flower Seeds of 2025

Mr Fothergill's Zinnia Jazz Seeds are a fantastic choice for your garden. As a half-hardy annual, these seeds will flower in the same year you sow them, providing you with beautiful blooms in no time. The large, easy-to-grow flowers make them perfect for gardeners of all levels. You'll also appreciate the dramatic impact they provide, whether in a border or as striking cut flowers for your home. With a growing height of 75 cm, these plants are sure to catch the eye.

Zinnia ‘Forecast’ Seeds by Thompson and Morgan are a delightful addition to any garden. With vibrant blooms in a mix of purple, pink, orange, salmon, yellow, and cream, these flowers provide long-lasting colour throughout the summer. You can also enjoy them indoors as stunning cut flowers. They are drought tolerant, making them easy to care for, and thrive in sunny spots. Additionally, these flowers are excellent for attracting pollinators, helping to support local wildlife in your garden.

The Premier Zinnia Whirlygig Seeds offer an excellent option for budding gardeners. You can sow these seeds thinly under cover 4-6 weeks before the last frost, ensuring they are started in ideal conditions. Germination typically occurs within 5 to 10 days, allowing you to see quick results. Once the seedlings are strong enough, you can easily thin and transplant them for optimal growth. With proper care, including monthly feeding and pinching back for bushier plants, you can enjoy vibrant blossoms throughout the season.

The Purple Prince Seeds from Thompson & Morgan will brighten your garden with stunning deep pink-purple blooms all summer long, attracting delightful bees and butterflies. This taller variety enhances border displays and looks great in cut flower arrangements. With an abundance of fully double flowers, you'll enjoy a vibrant garden that lasts until the first frosts. Each packet contains approximately 60 seeds, complete with detailed cultural instructions to help you nurture your plants effectively.

The California Giant Zinnia by Premier Seeds Direct allows you to start your gardening journey 4-6 weeks before the last frost. By sowing the seeds in good quality compost at 70F, you can expect germination within 5-10 days, giving you an early start. You can also sow them outdoors in well-drained soil during early summer, provided you protect the young seedlings from pests and ensure they stay warm. Once they are large enough, you can easily transplant them to trays, allowing for better growth in cooler conditions.

The Zinnia Giant Polar Bear Seeds from Premier Seeds Direct are a fantastic choice for gardeners looking to add vibrant blooms to their outdoor space. You can start by sowing them under cover, ensuring they germinate within 5 to 10 days. For outdoor planting, they thrive in well-drained soil during early summer, although seedlings will need protection from pests. Once they grow large enough, you can easily transplant them, allowing for healthier growth. Plus, pinching back young plants promotes bushier growth, enhancing your garden's beauty.

The Plant World Zinnia Seeds are a delightful addition to any garden. Supplied directly from Plant World Seeds UK, these seeds promise robust plants that grow between 30-50cm tall. With over 100 seeds in each packet, you have plenty to create stunning floral displays. These plants produce an abundance of beautiful, deep pink, dahlia-like flowers throughout the summer, attracting bees and butterflies to your garden. This variety not only adds height but also brightens up borders and arrangements until the first frosts.

The Mr Fothergills Zinnia Seeds are a fantastic choice for anyone looking to enhance their garden. These Giant Double Seeds are perfect for cutting and creating beautiful mixed borders. Being a half hardy annual, they allow you to enjoy vibrant blooms year after year. With approximately 100 seeds in each packet, you have plenty to sow. You can easily start them outdoors between April and May or indoors from March to April, ensuring flexibility in your planting schedule.

Johnsons Zinnia Sprite Seeds are a delightful choice for your garden. With a height of 50 cm, these plants will add a charming presence to your flower beds. Their medium, upright habit makes them ideal for creating structured displays, while their classification as half hardy annuals ensures that you can enjoy their vibrant blooms throughout the growing season. By selecting these seeds, you can easily cultivate a lively and colourful garden that will be the envy of your neighbours.

The Queen Lime Red Seeds by Thompson & Morgan offer a stunning colour combination that will brighten up your garden beds and borders. These seeds promise formidable garden performance, blooming continuously throughout the summer months, ensuring a vibrant display. Drought tolerance means less worry about watering, making them ideal for the busy gardener. Additionally, these flowers attract pollinators like insects and butterflies, enhancing the biodiversity of your garden. You can also use them as cut flowers to bring a touch of natural beauty indoors.