Best Petunia Flower Seeds of 2025

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Petunia flower seeds are a popular choice for gardeners looking to add a splash of colour to their outdoor space. These seeds produce beautiful and vibrant flowers that come in a range of colours, from bright pinks and purples to soft pastels and whites. Petunias are easy to grow and care for, making them a great option for both novice and experienced gardeners. The seeds can be sown in trays or directly into the ground, and will bloom from early summer to the first frost. With their long-lasting blooms and easy maintenance, petunia flower seeds are a great addition to any garden.
At a Glance: Our Top Picks
Top 10 Petunia Flower Seeds
Welldales Double Mix Petunia Seeds for Baskets
The Welldales Petunia Seeds offer a delightful mix of pastel shades, including blue, pink, red, white, and burgundy. These versatile flowers are perfect for adding colour to your garden, whether indoors or outdoors. By deadheading the leggy stems, you can encourage more trailing side shoots, ensuring your plants remain lush and vibrant. The velvet-like flowers pair beautifully with most garden plants, making them an excellent choice for bedding, borders, planters, and hanging baskets.
Premier Seeds Direct Petunia Balcony Mix Seeds
The Petunia Balcony Mix Seeds from Premier Seeds Direct are an excellent choice for gardeners looking to brighten their outdoor spaces. You can sow these seeds indoors from January onwards, ensuring they germinate at the ideal temperature of 21-27°C. Keeping the soil moist is crucial, and sealing them in a polythene bag helps retain moisture during germination. Since these seeds require light to sprout, it is important to shield them from direct sunlight. Once they are large enough, you can easily transplant them to trays, allowing for better growth in cooler conditions.
JustSeed Petunia Double Pirouette Orchid Mist Seeds
The JustSeed Petunia Seeds are part of "The Difference is JustSeed" seed range, ensuring you receive high-quality products. Supplied directly by JustSeed UK, these seeds come with the assurance of a professional seed company, registered with Defra. Each packet includes helpful growing information, making it easier for you to cultivate these beautiful flowers. With organic registration, you can enjoy gardening with peace of mind, knowing that you are using genuine organic seeds.
1,000 Mixed Petunia Hybrids Seeds from Pretty Wild Seeds
The Pretty Wild Seeds Petunia Seeds offer approximately 1,000 seeds per packet, ensuring you have plenty to create a vibrant display. You can sow these seeds indoors from February to April, allowing for early blooms. For those who prefer outdoor planting, sowing can be done from May to June, perfect for summer gardens. With flowers expected from July to September, these seeds will add colour and charm to your garden during the warmer months.
Premier Seeds Direct Petunia Nana Compacta Rose of Heavens Pink
The Petunia Nana Compacta Seeds are perfect for indoor sowing from January onwards, requiring a temperature of 21-27°C. You should sow them on the surface of fine seed compost and keep the soil moist, which helps ensure successful germination within 10-21 days. These seeds need light to sprout, so be sure to avoid direct sunlight. Once they are large enough to handle, you can transplant them, allowing for better growth in cooler conditions.
Welldales 50 Rose Pink Petunia Seeds
The Welldales Petunia Seeds offer a fantastic opportunity for gardeners of all levels. With a pack of 50 seeds, you can easily grow beautiful pink flowers that are perfect for various settings, whether indoors or outdoors. These open-pollinated flowers attract bees, butterflies, and hummingbirds, enhancing your garden's ecosystem. Additionally, the strong-scented blooms change from bright pink to pale pink, adding visual and aromatic appeal to your space. Sowing instructions are conveniently provided on the packaging, making it simple for you to get started.
Jamieson Brothers Beautiful Hanging Baskets Mixture
The Jamieson Brothers Hanging Baskets offers a delightful mixture of flower seeds, including Petunia, Lobelia, and Swan River Daisy. This premium selection is perfect for your gardening enjoyment, enhancing your outdoor spaces. You will appreciate how it attracts bees, butterflies, and other pollinators, promoting a vibrant ecosystem in your garden. It's great for mass planting or for use in borders and containers, making it versatile for any gardening style. Plus, these seeds are easy to grow, whether at home or on your allotment.
Pronto Seed Petunia Flower Growing Kit
The Pronto Seed Kit is an ideal solution for transforming your outdoor space with stunning petunias. It includes everything you need to start growing, from selected seeds to nutrient-rich growing medium, all housed in an elegant cream planter. With simple indoor starting instructions, you can plant from January to March and easily transition your blooms outdoors once the frost has passed. Position your petunias in bright windowsills or greenhouses initially to ensure they thrive, bringing vibrant colours and delightful fragrance to your garden.
ULTREY 200 Pcs Mixed Colour Petunia Seeds
The ULTREY Petunia Seeds offer a vibrant variety of summer flowers that are ideal for hanging baskets, patio containers, or window boxes. These hardy plants bloom from June to November, providing a stunning display of cascading colours. They are particularly resistant to wind and rain, ensuring your garden remains enchanting even in less favourable weather. For optimal growth, these petunias thrive in sunny to partially shaded locations, making them a versatile choice for any outdoor space.
100 Pcs Petunia Seeds for Planting
The Petunia Seeds by SpirWoRchlan offer high germination rates and are easy to plant, making them a perfect choice for your garden or home. You can use them in vases, pots, or hanging baskets to create a beautiful, aromatic space. With a long flowering period, these seeds will fill your surroundings with delightful scents. Each package contains 100 seeds, ensuring you have plenty to cultivate your own stunning floral displays in various locations, from balconies to courtyards.
Frequently Asked Questions (FAQs)
1. Are petunias hard to grow from seed?
Petunias are moderately easy to grow from seed, and extremely easy to grow from commercially grown seedlings. Use petunias everywhere there is sun.
2. How long does it take to grow petunias from seeds?
In Conclusion. Generally, petunia seeds germinate within a week, and they complete indoor growing between 10 and 12 weeks. Also, it might take as much as eight weeks for them to bloom. However, you can easily speed up this process by getting a petunia for transplant.
3. What is the best time to grow petunia seeds?
Petunia seeds should be sown in the warmth in spring. To produce bushy plants that can be planted out in late spring or early summer, sow in early spring. Choose a peat free seed sowing compost, and improve drainage by adding some horticultural sharp sand, perlite or vermiculite into the mix.
4. Is it worth growing petunias from seed?
It's simple to buy a couple of petunia seedlings to fill one planter, but for mass plantings and garden edging, growing petunias from seed is the way to go. You'll save money because of the sheer number of plants you need, plus you'll have a much wider range of flowers to choose from.
During our petunia flower seed research, we found 138 petunia flower seed products and shortlisted 10 quality products. We collected and analyzed 31,373 customer reviews through our big data system to write the petunia flower seeds list. We found that most customers choose petunia flower seeds with an average price of £3.36.
The petunia flower seeds are available for purchase. We have researched hundreds of brands and picked the top brands of petunia flower seeds, including Welldales, Premier Seeds Direct, Just Seed, Pretty Wild Seeds, Jamieson Brothers. The seller of top 1 product has received honest feedback from 555 consumers with an average rating of 4.8.

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.