Petunia Seed Collection | Petunia grandiflora & Petunia hybrida

Our Petunia Seed Collection brings together two beloved petunia groups — Petunia grandiflora and Petunia hybrida — chosen for their outstanding garden performance, rich colour palette, and long flowering season. These classic yet ever-popular summer flowers are perfect for gardeners, florists, and balcony growers alike.

Petunia grandiflora

Known for their extra-large, often ruffled blooms, Petunia grandiflora varieties create a luxurious, show-stopping effect. Flowers can reach impressive sizes and come in elegant shades of white, blush, rose, purple, burgundy, and dramatic bicolours. Best suited for containers, pots, and sheltered beds where their delicate petals can truly shine.

Petunia hybrida

Petunia hybrida varieties are strong, adaptable, and incredibly floriferous. They bloom continuously from late spring until frost and are ideal for flower beds, borders, hanging baskets, and window boxes. These petunias offer excellent weather tolerance, vibrant colour mixes, and reliable performance throughout the season.

Petunia grandiflora - therapyofflowers.com

New seeds

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Ranunculus and Anemones – Elegant Blooms for a Stunning Garden

Transform your garden with the timeless elegance of Ranunculus and Anemones. These classic flowers are beloved for their vibrant colors, delicate petals, and long-lasting blooms, making them perfect for garden beds, borders, and floral arrangements

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Blog posts

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  • Sweet Pea Seeds: Ruffled, Large-Flowered and Perennial Types Explained

    Sweet Pea Seeds: Ruffled, Large-Flowered and Pe...

    Are ruffled, large-flowered sweet peas a separate species? Learn what Lathyrus odoratus means, how Spring Sunshine sweet peas fit in, and how annual sweet peas differ from perennial peas.

    Sweet Pea Seeds: Ruffled, Large-Flowered and Pe...

    Are ruffled, large-flowered sweet peas a separate species? Learn what Lathyrus odoratus means, how Spring Sunshine sweet peas fit in, and how annual sweet peas differ from perennial peas.

  • Grow Something Extraordinary with Therapy of Flowers

    Grow Something Extraordinary with Therapy of Fl...

    Discover premium flower seeds, herb seeds, vegetable seeds, specialty pumpkins, tulip bulbs, ranunculus and anemones. Find inspiration for creating a beautiful, productive garden with carefully selected varieties from Therapy of...

    Grow Something Extraordinary with Therapy of Fl...

    Discover premium flower seeds, herb seeds, vegetable seeds, specialty pumpkins, tulip bulbs, ranunculus and anemones. Find inspiration for creating a beautiful, productive garden with carefully selected varieties from Therapy of...

  • How to Label Sown Seeds and Plants in the Garden

    How to Label Sown Seeds and Plants in the Garden

    Learn how to label seeds and garden plants correctly, why cardboard seed trays and wooden labels can develop mould, and which durable, reusable alternatives make seed starting easier.

    How to Label Sown Seeds and Plants in the Garden

    Learn how to label seeds and garden plants correctly, why cardboard seed trays and wooden labels can develop mould, and which durable, reusable alternatives make seed starting easier.

  • Chocolate Cosmos – The Luxury Flower That Smells Like Dark Chocolate

    Chocolate Cosmos – The Luxury Flower That Smell...

    Discover how to grow Chocolate Cosmos ‘Black Magic’ from seed, overwinter its tubers and enjoy one of the world’s most luxurious flowers with its unforgettable dark chocolate fragrance.

    Chocolate Cosmos – The Luxury Flower That Smell...

    Discover how to grow Chocolate Cosmos ‘Black Magic’ from seed, overwinter its tubers and enjoy one of the world’s most luxurious flowers with its unforgettable dark chocolate fragrance.

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