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RHS Forget Me Not Ultramarine Seeds 300 Seeds, Hardy Biennial Blue Cottage Flower | Flower Seeds | 5011775274171 5011775274171 | AllotMate Essentials
RHS Forget Me Not Ultramarine Seeds 300 Seeds, Hardy Biennial Blue Cottage Flower | Flower Seeds | 5011775274171 5011775274171 | AllotMate Essentials
RHS Forget Me Not Ultramarine Seeds 300 Seeds, Hardy Biennial Blue Cottage Flower | Flower Seeds | 5011775274171 5011775274171 | AllotMate Essentials
RHS Forget Me Not Ultramarine Seeds 300 Seeds, Hardy Biennial Blue Cottage Flower | Flower Seeds | 5011775274171 5011775274171 | AllotMate Essentials
RHS Forget Me Not Ultramarine Seeds 300 Seeds, Hardy Biennial Blue Cottage Flower | Flower Seeds | 5011775274171 5011775274171 | AllotMate Essentials
RHS Forget Me Not Ultramarine Seeds 300 Seeds, Hardy Biennial Blue Cottage Flower | Flower Seeds | 5011775274171 5011775274171 | AllotMate Essentials

RHS Forget Me Not Ultramarine Seeds 300 Seeds, Hardy Biennial Blue Cottage Flower

by Mr Fothergill's

RHS Forget Me Not Ultramarine seeds produce compact plants covered in vivid blue spring flowers, perfect for cottage borders and under planting bulbs.

£3.25 - £3.25
£3.25
£3.25 - £3.25
£3.25

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RHS Forget Me Not Ultramarine Seeds by Mr Fothergill’s produce compact plants covered in vivid ultramarine blue flowers with bright yellow centres. These classic spring blooms create a dense carpet of colour, perfect for borders, containers and under planting spring bulbs.

Also known by its botanical name Myosotis sylvatica, this hardy biennial grows to approximately 15cm in height with a spread of around 15cm. The neat growth habit makes it ideal for edging paths, filling gaps at the front of borders and weaving through tulips, daffodils and other spring favourites.

Ultramarine holds the RHS Award of Garden Merit for reliability and consistent garden performance. It is also recognised as Perfect for Pollinators, helping to provide early season nectar for bees and beneficial insects. The seed range is produced by Mr Fothergill’s in partnership with the Royal Horticultural Society.

Forget Me Not Ultramarine thrives in full sun or partial shade and prefers moist but well drained soil. It is easy to grow directly outdoors and is particularly effective when planted in drifts for a natural cottage garden look.

For outdoor sowing, sow from May to July in a prepared seed bed. Sow thinly in rows 15cm apart and cover with approximately 0.5cm of fine soil. Firm gently and keep moist. Seedlings appear in 14 to 28 days.

When large enough to handle, thin to 5cm apart. Transplant 15cm apart in flowering position from September to October. Keep moist and weed free during establishment.

Plants flower from April to June in the following year. For striking spring containers, sow some seeds in pots alongside spring flowering bulbs.

Approximate contents 300 seeds

  • Approximate 300 seeds
  • Hardy biennial
  • Height approximately 15cm
  • Spread approximately 15cm
  • Flowers April to June
  • RHS Award of Garden Merit
  • Recognised as Perfect for Pollinators
  • Ideal for borders, containers and bulb under planting

Key Use Cases

  • Spring borders
  • Under planting tulips and daffodils
  • Cottage garden edging
  • Container planting
  • Pollinator friendly spring displays

General Sowing Guidance

  • Sow outdoors May to July in seed bed
  • Transplant 15cm apart in flowering position
  • Prefers sun or partial shade
  • Keep moist during establishment
  • Flowers the following spring

At AllotMate Essentials, we love Ultramarine for its pure cottage garden charm. It delivers reliable spring colour, blends beautifully with bulbs and quietly supports pollinators when they need it most. It is compact, easy to grow and effortlessly charming.

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Sowing and growing guide

About Mr Fothergill's

Mr Fothergill's is a much loved British seed brand with a simple belief at its heart, gardening has the power to enrich everyday life and deepen our connection with nature. What began in 1978 in the converted stable block of Lillie Langtry’s former Newmarket home has grown into one of the most trusted names in seeds and plants, with a reputation built on quality, innovation and genuine care for gardeners.

From its home in Kentford, Newmarket, the company has evolved from a small family business into a modern seed specialist, with purpose built offices, a seed testing laboratory, packing and storage facilities, and extensive trial grounds and growing sites. Every season, seeds and plants are carefully selected, tested and packed so that gardeners in the UK and in more than 30 countries can sow with confidence.

For over 40 years, Mr Fothergill’s has supplied garden centres, shops and home gardeners with an extensive range of vegetable and flower seeds, young plants and useful gardening essentials. Whether you are working with a balcony, courtyard, back garden or full allotment, and whether you are a complete beginner or a seasoned grower, the brand’s aim is the same, to inspire you, to offer reliable products at great value, and to give you the confidence to grow a beautiful space and delicious homegrown food.

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