Best Aster Flower Seeds of 2025

* We independently evaluate all recommended products and services. If you click on links we provide, we may receive compensation.
Aster Flower Seeds are a popular choice for gardeners looking to add some colour and variety to their outdoor spaces. These seeds produce beautiful and vibrant flowers that come in a range of colours such as pink, purple, white and blue. They are easy to grow and can be planted in the spring or autumn, making them a versatile option for any garden. With their long-lasting blooms, Aster Flowers are perfect for adding some vibrancy to borders, containers or as a cut flower for indoor displays. These seeds are a great option for anyone looking to add some natural beauty to their outdoor space.
At a Glance: Our Top Picks
Top 10 Aster Flower Seeds
Johnsons Aster Duchess Blue Ice Seeds
The Johnsons Aster Seeds are a delightful addition to any garden. Standing at a height of 60 cm, they provide a lovely bushy and dwarf habit, making them perfect for smaller spaces or borders. Being a half hardy annual, these seeds offer the benefit of vibrant blooms throughout the growing season. With 250 seeds included, you can easily fill your garden with beautiful flowers, ensuring a stunning display that attracts attention and enhances your outdoor space.
Aster Seeds UK Duchess Mixed Flower Plants
The Duchess Mixed Aster Seeds by Thompson & Morgan are perfect for creating a stunning display in your garden. These half-hardy annual flowers resemble chrysanthemums, offering large, vibrant blooms that will brighten up your borders. They grow upright and strong, providing beautiful flowers from July to October. Each packet contains approximately 250 seeds, so you can enjoy a flourishing garden. Additionally, you will receive helpful cultural instructions to ensure your seeds thrive, making gardening a more enjoyable experience for you.
Johnsons Aster Mixed Flower Seeds, 200 Count
Johnsons Aster Seeds are a fantastic choice for any garden enthusiast. Standing at an impressive height of 120 cm, these hardy perennials will add vibrant colour and texture to your outdoor space. With 200 seeds in each pack, you can enjoy a generous supply to create a stunning display. Hardy perennials are particularly beneficial as they return year after year, providing lasting beauty without the need for replanting. You'll appreciate the ease of growing these flowers, making your garden a delightful retreat.
Simply Garden Aster Colour Carpet Mixed Seeds
The Simply Garden Flower Seeds offer a delightful opportunity to grow your own vibrant flowers. With these mixed seeds, you can cultivate a stunning array of Aster blooms that will enhance any garden space. You’ll find that these seeds are easy to plant and care for, making them suitable for both novice and experienced gardeners. Enjoy the satisfaction of watching your flowers flourish, bringing colour and life to your outdoor environment.
Mr Fothergill's Alpine Mixed Aster Seeds
Mr Fothergill's Aster Seeds offer a fantastic opportunity to cultivate beautiful flowers in your garden. These hardy perennial seeds can be sown from February to July, giving you ample time to prepare your planting schedule. Once planted, you can expect vibrant blooms from May to July the following year, ensuring your garden bursts with colour. With approximately 250 seeds per pack, you'll have plenty to create a stunning display that is also a winner of The RHS Award of Garden Merit, guaranteeing quality and performance.
Mr Fothergill's Aster Milady Mixed Flower Seeds
Mr Fothergill's Aster Seeds are a delightful choice for any garden. As a half-hardy annual, you can enjoy vibrant blooms in the same year you sow them. These seeds produce a stunning carpet of colour, enhancing your outdoor space beautifully. The bright, large flowers continue to flourish well into autumn, providing long-lasting enjoyment. Additionally, these plants thrive in partial shade, making them perfect for those tricky spots in your garden where sunlight is limited.
Premier Seeds Direct Aster China Princess Mix
The Aster China Princess Mix from Premier Seeds Direct is ideal for those looking to add vibrant blooms to their garden. You can start sowing the seeds in trays up to four weeks before the last frost, ensuring they are well-established by the time they bloom. If you prefer, you can also plant them directly outside in mid-spring. It is essential to keep the soil moist until the plants are established, which will help them thrive. Additionally, thinning the plants to 18 inches apart allows for better growth and support.
Plant World Seeds Alpine Aster Mixed Colours
The Plant World Aster Seeds offer a delightful mixture of colours, perfect for enhancing your garden. Supplied in genuine packets directly from Plant World Seeds UK, these seeds allow you to cultivate beautiful alpine asters that grow to a height of 10-30cm. With approximately 600 seeds per packet, you have plenty to create stunning displays. This tough, mat-forming plant thrives in rockeries and well-drained areas, making it an easy choice for gardeners seeking low-maintenance yet long-lasting blooms.
Mr Fothergill's Aster Duchess Mixed Flower Seeds
Mr Fothergill's Aster Seeds are a fantastic choice for those looking to add vibrant colour to their gardens in late summer. Being half hardy annuals, they will flower in the same year you sow them, ensuring quick results. The large, incurved blooms resemble chrysanthemums, making them perfect for cutting and displaying in your home. With a growing height of 60 cm, these striking flowers will create a stunning focal point in any garden space, providing beauty and joy for you to enjoy.
Johnsons 11500 Aster Colour Carpet Seeds
The Johnsons Aster Colour Seeds are an excellent choice for gardeners looking to add vibrant colour to their outdoor spaces. With a height of 20 cm, these half hardy annual plants are perfect for creating a lush, bushy display. Their dwarf habit makes them ideal for borders or containers, allowing you to maximise your planting area. By choosing these seeds, you can enjoy a beautiful carpet of aster flowers that will attract pollinators and bring life to your garden.
Frequently Asked Questions (FAQs)
1. Can I grow Aster from seed?
How to grow Asters from seed? It's best to start Asters in a protected environment such as Greenhouse or propagator. Sow in seed trays and label. Sow Aster seeds from March to May in a decent peat-free compost.
2. How long does Aster take to grow from seed?
You can transplant them in the garden when they have two sets of true leaves after all danger of frost has passed. Your asters will bloom about three to four months after sowing the seeds.
3. How long does it take asters to flower from seed?
Seedlings usually appear in 14-21 days and once germinated move to a cooler, light position. Once seedlings are large enough to handle. Harden off before planting outside. Sow outdoors for ease.
During our aster flower seed research, we found 227 aster flower seed products and shortlisted 10 quality products. We collected and analyzed 14,037 customer reviews through our big data system to write the aster flower seeds list. We found that most customers choose aster flower seeds with an average price of £2.84.
The aster flower seeds are available for purchase. We have researched hundreds of brands and picked the top brands of aster flower seeds, including Johnsons, Thompson & Morgan, Simply Garden, Mr Fothergills, Premier Seeds Direct.

Toby Butcher is a Horticulturist, and he earned his title as a Master Gardener in 2016. Toby has acquired a 25-year experience as a home gardener planting, designing, grooming vegetables and flowers. He is the leader of a plant group in Durham. Toby owns a blog where he publishes articles on growing and growing your flowers at home, in a vase, or in a garden.