Best Full Sun Flower Seeds of 2026

Toby Butcher Avatar
Toby Butcher
Last Updated: 5 Feb 2026

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Full sun flower seeds are the perfect choice for gardeners looking to add some colour and vibrancy to their outdoor space. These seeds are specially designed to thrive in areas with ample sunlight, producing beautiful blooms in a range of colours and sizes. Whether you're looking for a classic yellow sunflower or a more unique variety, full sun flower seeds are an excellent option. With proper care and attention, these seeds will grow into stunning flowers that will brighten up any garden or outdoor area.

At a Glance: Our Top Picks

Super Giant Sunflower Seeds by Pretty Wild Seeds Cover #TOP 1
Super Giant Sunflower Seeds by Pretty Wild Seeds
ftb score rating icon 9.8
Premier Seeds Direct Cornflower Seeds Frosty Mix Cover #TOP 2
Premier Seeds Direct Cornflower Seeds Frosty Mix
ftb score rating icon 9.7
Fothergill's Sunflower Giant Single Flower Seeds Cover #TOP 3
Fothergill's Sunflower Giant Single Flower Seeds
ftb score rating icon 9.5

Top 10 Full Sun Flower Seeds

Super Giant Sunflower Seeds by Pretty Wild Seeds

Helianthus Uniflorus Giganteus
Yellow
Super Giant Sunflower Seeds by Pretty Wild Seeds Cover
Super Giant Sunflower Seeds in Pictorial Packet Helianthus Uniflorus Giganteus

Pretty Wild Sunflower Seeds thrive in full sun, making them perfect for brightening up your garden. They can reach an impressive height of up to 10ft in ideal conditions, adding a striking visual element to your outdoor space. Placing them near a fence or wall can provide support and enhance their growth. Additionally, with a packet containing approximately 50 seeds, you’ll have plenty to plant and enjoy. Both the seeds and flowers are edible, offering you a unique and delightful addition to your culinary creations.

What We Like
Thrives in full sun
Grows up to 10ft tall
Ideal near fences or walls
Packet contains approximately 50 seeds
Edible seeds and flowers

Premier Seeds Direct Cornflower Seeds Frosty Mix

Premier Seeds Direct
CRN01F
3.6 GRAMS
Premier Seeds Direct Cornflower Seeds Frosty Mix Cover
PREMIER SEEDS DIRECT - Cornflower Seeds - Frosty Mix - 3.6 Grams

The Premier Cornflower Seeds are easy to grow, with germination taking only 5 to 10 days under ideal conditions. You can start them indoors 4 to 6 weeks before the last frost or sow them directly in your garden once the frost threat has passed. These seeds are versatile, tolerating various soil types, which increases your planting options. When your seedlings reach 2 to 3 inches, simply thin them to give each plant enough space to thrive at 10 to 12 inches apart.

What We Like
Quick germination time
Versatile soil tolerance
Indoor or outdoor planting
Space-efficient growth
#TOP 3

Fothergill's Sunflower Giant Single Flower Seeds

Fothergill's Sunflower Giant Single Flower Seeds Cover
Fothergill's Sunflower Giant Single Flower Seeds, 75 Seeds, Helianthus Annuus, Yellow

Features
Sun-Loving Annuals: Thrives In Full Sun And Well-Drained Soil, Making Them Easy To Grow For Gardeners Of All Levels.
Towering Growth: Reaches Impressive Heights Of 6 Feet Or More, Perfect For Adding Vertical Drama To Your Garden.
Wildlife Friendly: Attracts Pollinators Like Bees And Butterflies, And Provides Winter Food For Birds With Its Seed Heads.
Multi-Purpose: Strong Stems Can Be Used As Natural Supports For Climbing Plants, Adding Function To Their Beauty.
Edible Seeds: Produces Tasty Seeds That Can Be Roasted For Snacks Or Left For Birds To Enjoy.

Red Sunflower Seeds by Pretty Wild Seeds

Certified seeds
Red Sunflower Seeds by Pretty Wild Seeds Cover
Red Sunflower Seeds UK 80 Helianthus Packet Flower Seeds by Pretty Wild Seeds

The Pretty Wild Sunflower Seeds pack includes 80 fresh seeds, ensuring you have plenty to create a vibrant display in your garden. Registered with DEFRA, you can plant these seeds with confidence in their quality and compliance. You can sow them from February to May, allowing you to enjoy their beautiful blooms throughout the summer. Each packet features pictorial guidance, making it easy for you to identify the seeds and plan your planting effectively.

What We Like
80 fresh seeds included
DEFRA registered quality
Flexible sowing dates
Pictorial planting guidance

Mr Fothergill's Giant Sunflower Seeds

16054
Sow: Mar to May
Mr Fothergill's Giant Sunflower Seeds Cover
Mr Fothergill’s Sunflower Giant Single Seeds, Giant Sunflower Flower Seeds, Tall Plants to 180cm, Borders Beds and Cut Flowers, Bee and Butterfly Friendly Hardy Annual

The Mr Fothergill's Sunflower Seeds are an excellent choice for gardeners seeking easy and fast-growing flowers. With their impressive height of 180 cm and large flower heads, these sunflowers can make a stunning addition to your garden. Starting seeds indoors helps you manage garden pests effectively, ensuring strong plants. As a hardy annual, you can enjoy beautiful blooms in the same year they are sown. Additionally, if you harvest seeds from these plants, they can be used in baking, adding a delightful touch to your culinary creations.

What We Like
Easy and fast growing
Produces large flower heads
Flowers in the same year
Seeds can be used in baking
Good for pest management

Just Seed Sunflower School Pack - 300 Seeds

EA4-0E7-9DB
Yellow
300 seeds
Just Seed Sunflower School Pack - 300 Seeds Cover
Just Seed - Sunflower School Pack Giant Single Yellow - 300 Seed

The Just Seed Sunflower Pack is an excellent choice for gardening enthusiasts. It belongs to "The Difference is JustSeed" seed range, ensuring quality and reliability. Each pack is supplied directly by JustSeed UK, giving you peace of mind with genuine products. As a professional seed company, Just Seed is Defra registered, which means you can trust their products are compliant with UK standards. Furthermore, all seeds come packed with helpful growing information, making it easier for you to cultivate beautiful sunflowers.

What We Like
High-quality seeds
Direct from JustSeed UK
Defra registered
Includes growing information

Phacelia Flower Seeds for Bees and Vegetables

purple
Phacelia Flower Seeds for Bees and Vegetables Cover
Phacelia Flower Seeds to Attract bee Vegetable Seeds, Green Manure Phacelia tanacetifolia 1000 Seeds

The DAMAVAND PRO Phacelia Seeds are perfect for attracting bees while enhancing your garden's beauty. These seeds thrive in full sun and can adapt to various soil types, ensuring that you can grow them almost anywhere. With an average to fast growth rate, you can enjoy their lovely flowers from June to September. The plants can reach heights of up to 1 metre, providing a fantastic visual impact in your garden. You will appreciate the lush greenery and the benefits of supporting local pollinators.

What We Like
Attracts bees effectively
Grows in various soils
Fast growth rate
Blooms from June to September
Height up to 1 metre

Thompson & Morgan Giant Sunflower Seeds

Thompson & Morgan Giant Sunflower Seeds Cover
Sunflower Seeds Colourful Yellow Flowers Easy Grow Plants for Garden, Allotment & Patio Russian Giant Variety Approx 60 Seeds Packet by Thompson & Morgan

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.

What We Like
Impressive 10 feet height
Engages children in gardening
Easy germination and transplanting
Helpful care instructions included
Attracts bees to the garden
#TOP 9

Premier Seeds Direct Autumn Beauty Sunflower Seeds

Premier Seeds Direct
SUN01F
100 SEEDS
Premier Seeds Direct Autumn Beauty Sunflower Seeds Cover
PREMIER SEEDS DIRECT - Sunflower Seeds - Autumn Beauty - 100 Finest Seeds

The Autumn Beauty Sunflower Seeds from Premier Seeds Direct are an excellent choice for your garden. They germinate in just 14-21 days, ensuring a quick start to your planting season. You can plant them indoors or directly in the garden after the last frost, giving you flexibility in your gardening schedule. With a recommended planting depth of 1/4 inch and spacing for optimal growth, these seeds can reach impressive heights of 6-8 feet, providing a stunning visual display in full sun.

What We Like
Quick germination time
Flexible planting options
Impressive plant height
Beautiful full sun flowers

Cornflower Annual Wild Flower Seeds by Pretty Wild Seeds

Cornflower
Blue
Cornflower Annual Wild Flower Seeds by Pretty Wild Seeds Cover
Cornflower Annual Wild Flower Seeds in Pictorial Packet from a UK Seller

The Pretty Wild Seeds Cornflower is a delightful addition to any garden. These seeds can grow up to 3ft tall, adding a striking height and colour to your outdoor space. They thrive in full sun, making them perfect for sunny spots in your garden. Furthermore, they are loved by pollinators, which means you'll be supporting local wildlife while enjoying your beautiful blooms. Planting these seeds is a great way to enhance your garden's ecosystem and attract beneficial insects.

What We Like
Attractive height of 3ft
Thrives in full sun
Supports pollinator populations
Easy to grow
Buying Guide Image

Frequently Asked Questions (FAQs)

1. What month do you plant sun flower seeds?

When growing sunflowers, you can generally plant the seeds from early March to mid-May, but this will differ by variety so always check the seed packet.

2. Can you plant sun flower seeds?

You can get starter plants at a nursery or home improvement store, but growing sunflower plants is easiest if you grow them from seed sown directly into the ground. More varieties of sunflowers are available to you if you grow from seed. Growing sunflowers from seed is super easy, too.

3. Can sunflower grow in full sun?

How much sun do sunflowers need? Sunflowers need full sun for the best growth. Although only six hours of sun is required, the more sun a sunflower gets, the better the growth. If you crowd plants too closely together, the leaves will be starved for sunlight.

Editor's Notes

During our full sun flower seed research, we found 306 full sun flower seed products and shortlisted 10 quality products. We collected and analyzed 52,132 customer reviews through our big data system to write the full sun flower seeds list. We found that most customers choose full sun flower seeds with an average price of £2.44.

The full sun flower seeds are available for purchase. We have researched hundreds of brands and picked the top brands of full sun flower seeds, including Pretty Wild Seeds, Premier Seeds Direct, Mr Fothergills, Just Seed, DAMAVAND PRO.

Written by
Toby Butcher Avatar

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.