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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  • When to Sow Sweet Pea Seeds in Europe

    When to Sow Sweet Pea Seeds in Europe

    A complete guide to when to start sweet pea seeds in Europe, including country-specific sowing times and expert tips for strong plants and abundant blooms.

    When to Sow Sweet Pea Seeds in Europe

    A complete guide to when to start sweet pea seeds in Europe, including country-specific sowing times and expert tips for strong plants and abundant blooms.

  • Grower Tip from Therapy of Flowers — Starting Snapdragons from Seed

    Grower Tip from Therapy of Flowers — Starting S...

    A practical grower’s guide to starting snapdragons from seed — covering variety selection, sowing, germination, care, transplanting, and harvesting techniques for strong, productive cut flowers throughout the season.

    Grower Tip from Therapy of Flowers — Starting S...

    A practical grower’s guide to starting snapdragons from seed — covering variety selection, sowing, germination, care, transplanting, and harvesting techniques for strong, productive cut flowers throughout the season.

  • The Complete Guide to Harvesting & Storing Annual Phlox for Maximum Vase Life

    The Complete Guide to Harvesting & Storing Annu...

    When to Harvest: Cut in early morning (6-10 AM) when stems are fully hydrated Choose stems where 1/3 to 1/2 of the flower cluster is open Avoid cutting in the...

    The Complete Guide to Harvesting & Storing Annu...

    When to Harvest: Cut in early morning (6-10 AM) when stems are fully hydrated Choose stems where 1/3 to 1/2 of the flower cluster is open Avoid cutting in the...

  • Why Annual Phlox is Perfect for Cutting & Wedding Work

    Why Annual Phlox is Perfect for Cutting & Weddi...

    Excerpt – Clean & Professional Annual phlox (Phlox drummondii) is a must-grow flower for cutting and wedding floristry. Loved for its soft colours, long vase life, and airy texture, it’s...

    Why Annual Phlox is Perfect for Cutting & Weddi...

    Excerpt – Clean & Professional Annual phlox (Phlox drummondii) is a must-grow flower for cutting and wedding floristry. Loved for its soft colours, long vase life, and airy texture, it’s...

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