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Keeping you updated – Thompson & Morgan is operating as usual, working 24/7 to keep the country gardening. We are working closely with nurseries and growers to ensure that millions of plants are not wasted. Our site features many of these offers and we will add more every day, passing on these amazing deals to our customers.

Vita Sementi® Italian Seeds, T&M, £50 - £100, Under £20, Hardy, Blue

6296 products, 777 articles, 855 blogs

Lavender 'Munstead'

1 Review

Neat, dwarf variety, strongly fragrant producing a prolific quantity of deep blue flowers. Perfect for hedging and cut flowers and ideal for drying. Flowers summer. Height: 30-60cm (1-2ft).  More Info

  • Sun shade: Full sun
  • Grows in: Borders
  • Flower Colour: Blue
  • Longevity: Shrub

Just£2.99

within 14 working days

Geranium 'Rozanne'

81 Reviews

Winner of The RHS Chelsea Flower Show 'Plant of the Centenary'. A celebrated Cranesbill producing masses of saucer shaped, violet blue blooms with dainty white centres. Repeat flowering throughout the summer, hardy Geranium 'Rozanne' makes excellent ground cover through…  More Info

  • Sun shade: Sun or semi shade
  • Grows in: Borders
  • Flower Colour: Blue
  • Longevity: Perennial

6 Options From£6.99

by the end of april 2020

Rosemary

6 Reviews

Essential with roast lamb, the dark green aromatic foliage of rosemary has a multitude of culinary uses. This shrubby evergreen is ideal for a sunny herb garden and even survives in poor soils, requiring very little maintenance. Height and spread: 150cm (59).  More Info

  • Sun shade: Full sun
  • Grows in: Borders
  • Flower Colour: Blue
  • Longevity: Shrub

Just£2.29

within 14 working days

Lavender 'Platinum Blonde'

3 Reviews

This unusual cultivar has bright, variegated foliage with broad yellow margins that radiate a golden glow. From June to August, Lavender 'Platinum Blonde' is crowned with a profusion of blue flower heads, borne on stiffly upright stems. Like all Lavender, the flowers…  More Info

  • Sun shade: full sun
  • Grows in: Borders
  • Flower Colour: Blue
  • Longevity: Shrub

4 Options From£8.99

within 14 working days

Lavender 'Munstead'

3 Reviews

Choose Lavender 'Munstead' as a neat edging to the border or path and enjoy its delicious scent as you brush past its aromatic foliage. In summer, the mass of dark purple-blue flower spikes are a lovely sight, and are particularly attractive to bees. They are perfect…  More Info

  • Sun shade: Full sun
  • Grows in: Borders
  • Flower Colour: Blue
  • Longevity: Shrub

4 Options From£11.99

within 14 working days

Lavender 'Ellagance Sky'

8 Reviews

A stunning first year flowering Lavender with large, attractive, fragrant, sky-blue spikes on strong stems, reaching out from bushy well branched plants. A long lasting addition to borders or containers, attracting bees and butterflies to your garden. Height: 30-35cm …  More Info

  • Sun shade: Full sun
  • Grows in: Borders
  • Flower Colour: Blue
  • Longevity: Shrub

Just£1.00

within 14 working days

Borage

5 Reviews

A beautiful hardy annual herb with rough leaves covered in silvery hairs and the most attractive celestial blue flowers. Nectar rich borage flowers are particularly attractive to pollinating insects, including bees which make distinctive flavoured borage honey. This…  More Info

  • Sun shade: Full sun
  • Grows in: Borders
  • Flower Colour: Blue
  • Longevity: Annual

Just£2.29

within 14 working days

Sage

2 Reviews

The soft blue-green leaves of sage are ideal for adding their rich flavour to meats and stuffing. This hardy sub-shrub is an essential herb for adding to the Sunday roast but also makes an attractive plant in the perennial border. The flavour of the leaves will be best…  More Info

  • Sun shade: Full sun
  • Grows in: Borders
  • Flower Colour: Blue
  • Longevity: Shrub

Just£2.29

within 14 working days

Passiflora caerulea

42 Reviews

Popular for its exquisite flowers, Passiflora caerulea is a vigorous semi-evergreen climber with attractive lobed leaves. From summer through to autumn it produces large white flowers with a fascinating structure, including a striking ring of blue-purple filaments. The…  More Info

  • Sun shade: Sun or semi shade
  • Grows in: Borders
  • Flower Colour: Blue
  • Longevity: Perennial

3 Options From£11.99

within 14 working days

Hydrangea macrophylla 'Bela Collection'

2 Reviews

These low growing dwarf Hydrangeas are perfect for filling patio pots! The rounded, mop head flowers are produced from July through to September in fabulous shades of rosy-red and blue.  More Info

  • Sun shade: sun or semi shade
  • Grows in: Borders
  • Flower Colour: Blue
  • Longevity: Shrub

4 Options From£23.99

within 14 working days

Hebe 'Margret'

5 Reviews

Hebe make superb evergreen shrubs for sunny, well drained borders. Hebe ?Margret? is a pretty cultivar with sky blue flower spikes that are borne in profusion throughout the summer months, often with a second flush in autumn.  More Info

  • Sun shade: sun or semi shade
  • Grows in: Borders
  • Flower Colour: Blue
  • Longevity: Shrub

5 Options From£16.99

within 14 working days

Campanula pyramidalis (Mixed)

3 Reviews

One of the most striking perennials for the border or patio containers. Giant, slender spikes of blooms reach skywards, in shades of blue and white. Plant in containers either side of your front door for a colourful box or bay tree substitute!  More Info

  • Sun shade: Full sun
  • Grows in: Borders
  • Flower Colour: Blue
  • Longevity: Perennial

Just£2.99

within 14 working days

Ceanothus thyrsiflorus var. repens

38 Reviews

Ceanothus Thyrsiflorus Repens (Californian Lilac) is perfect for the front of a border as it naturally forms a small mound that is evergreen and frost hardy. It is perfect for adding some structure and ground cover to cottage gardens and prefers a position in rich…  More Info

  • Sun shade: Full sun
  • Grows in: Borders
  • Flower Colour: Blue
  • Longevity: Shrub

7 Options From£7.49

by the end of june 2020

Hebe 'High Voltage'

7 Reviews

Hebes offer impact and structure in the garden for minimum effort. We've selected this slow-growing, compact variety for its stand out summer flower spikes, which transform from electric blue to pure white. Hebe 'High Voltage' performs perfectly in large pots or out in…  More Info

  • Sun shade: Sun or semi shade
  • Grows in: Borders
  • Flower Colour: Blue
  • Longevity: Shrub

2 Options From£9.49

within 21 working days

Agapanthus Duo Collection

34 Reviews

This magnificent mix combines blue Agapanthus 'Flower of love? and the first ever bicolour Agapanthus 'Twister' for a striking two tone display  More Info

  • Sun shade: sun or semi shade
  • Grows in: Borders
  • Flower Colour: Blue
  • Longevity: Perennial

3 Options From£9.49

within 14 working days

Cornflower 'Jubilee Gem'

4 Reviews

Dense heads of large, double flowers of a beautiful deep blue are freely produced on compact, bushy plants. Once a common sight in cornfields the annual cornflower stills creates a big impact in summer borders and meadows. The intensely coloured blooms of blue…  More Info

  • Sun shade: Full sun
  • Grows in: Borders
  • Flower Colour: Blue
  • Longevity: Annual

Just£2.29

within 14 working days

Buddleja 'Blue Chip'

9 Reviews

Buddleja 'Blue Chip' is covered in scented flowers from June to October, attracting butterflies to your garden in droves. This Butterfly Bush variety is extremely compact and won't seed about your garden. This hardy deciduous shrub is ideal for borders, low hedges and…  More Info

  • Sun shade: Full sun
  • Grows in: Borders
  • Flower Colour: Blue
  • Longevity: Shrub

5 Options From£16.99

by the end of july 2020

Geranium bohemicum 'Orchid Blue'

13 Reviews

Geranium 'Orchid Blue' is a selection by Thompson & Morgan from the species Geranium bohemicum. A short-lived border and ground cover plant which self-seeds to keep continuity. Masses of 2cm (0.75in) flowers of orchid-blue, veined in purple-violet, borne on bushy plants…  More Info

  • Sun shade: Full sun
  • Grows in: Borders
  • Flower Colour: Blue
  • Longevity: Perennial

Just£4.19

within 14 working days

Scabious 'Oxford Blue'

4 Reviews

An easy to grow annual, producing tall stems covered in masses of stunning, mid-blue, pin cushion flowers. A classic cottage garden plant, ideal for cutting and loved by bees and butterflies. Beautiful plants for the cottage border  More Info

  • Sun shade: Full sun
  • Grows in: Borders
  • Flower Colour: Blue
  • Longevity: Annual

Just£1.99

within 14 working days

English Bluebells

77 Reviews

A sea of English bluebells rekindles memories of springtime woodland walks, when the days start to lengthen and the weather warms up. The nodding, violet-blue flowers of these hardy, native bulbs attract insects to their delicately scented flowers. At their happiest…  More Info

  • Sun shade: Dappled shade
  • Grows in: Borders
  • Flower Colour: Blue
  • Longevity: Bulb

2 Options From£11.99

by the end of january 2021

Myosotis sylvatica 'Blue Ball'

2 Reviews

Compact and ball shaped with bright blue flowers.  More Info

  • Sun shade: Sun or semi shade
  • Grows in: Borders
  • Flower Colour: Blue
  • Longevity: Biennial

Just£2.29

within 14 working days

Phlox subulata 'Emerald Cushion Blue'

0 Reviews
  • Sun shade: full sun
  • Grows in: Borders
  • Flower Colour: Blue
  • Longevity: Perennial

Just£6.99

within 14 working days

Hyssopus officinalis 'Tricolour Mixed'

5 Reviews

A beautifully aromatic herb with a pungent tang suitable for meat dishes, beans and salads. Hyssop makes an attractive plant for the border where it will attract bees and butterflies. This exclusive blend brings together a pretty mix of blue, pink and white blooms.…  More Info

  • Sun shade: Full sun
  • Grows in: Borders
  • Flower Colour: Blue
  • Longevity: Shrub

Just£0.99

within 14 working days

Cornflower 'Trailing Blue Carpet'

2 Reviews

Cornflowers are a traditional wildflower or annual border addition. Now you can bring them to yourbaskets and container displays thanks to the relaxed prostrate habit of 'Trailing Blue Carpet?. Perfect for path and border edging. Height 10cm (4in).  More Info

  • Sun shade: Full sun
  • Grows in: Borders
  • Flower Colour: Blue
  • Longevity: Annual

Just£1.99

within 14 working days

Agapanthus 'Fireworks'

147 Reviews

For stunning, exotic looking blue and white blooms that burst at the end of tall stems like a fireworks in your flower bed, look no further than this amazing African Lily. An easy to keep variety that will get bigger and produce more flowers each year.  More Info

  • Sun shade: sun or semi shade
  • Grows in: Borders
  • Flower Colour: Blue
  • Longevity: Perennial

2 Options From£8.99

within 14 working days

Agapanthus africanus 'Twister'

85 Reviews

Here's a plant that will stand out from the crowd in your garden - the first ever deciduous bicolour agapanthus. This African lily is robust, and truly hardy in the UK meaning it's perfect in the garden border as well as in a patio container.  More Info

  • Sun shade: Sun or semi shade
  • Grows in: Borders
  • Flower Colour: Blue
  • Longevity: Perennial

5 Options From£9.49

within 14 working days

Cornflower 'Dwarf Blue Midget'

4 Reviews

A fantastic little cornflower rather like a ball of colour. Lower and neater than any we believe you will have seen before. Full of bloom at 15cm (6in) high. Ends up about 30cm (12in) high. Easy to grow and suitable for beds, borders, containers etc. Flowers summer.…  More Info

  • Sun shade: Full sun
  • Grows in: Borders
  • Flower Colour: Blue
  • Longevity: Annual

Just£2.29

within 14 working days

Nepeta 'Six Hills Giant'

1 Review

The ever popular Nepeta 'Six Hills Giant' is one of the most commonly grown Catmints. The lilac-blue lavender-like flower spikes rise above the silvery-green foliage from early summer onwards, giving a delightful summer display, that is ideal for softening borders and…  More Info

  • Sun shade: Sun or semi shade
  • Grows in: Borders
  • Flower Colour: Blue
  • Longevity: Perennial

4 Options From£9.99

within 14 working days

Meconopsis grandis

7 Reviews

Sturdy and long-lived with huge flowers 10-12cm (4-5in) across in a wonderful blue, shot with violet on erect stems  More Info

  • Sun shade: Sun or semi shade
  • Grows in: Borders
  • Flower Colour: Blue
  • Longevity: Perennial

Just£3.99

within 14 working days

Agapanthus 'Flower of Love'

12 Reviews

The deep blue florets of Agapanthus 'Flower of Love' are some of the darkest in the genus. Set above lush evergreen foliage, the exotic blooms make a real statement in sunny borders and patio containers, returning each summer and getting better every year. Hardier than…  More Info

  • Sun shade: sun or semi shade
  • Grows in: Borders
  • Flower Colour: Blue
  • Longevity: Perennial

2 Options From£9.49

within 14 working days

Lithodora diffusa 'Heavenly Blue'

0 Reviews

Perfect for a rockery or the front of a sunny border, Lithodora 'Heavenly Blue' is a mass of pretty star-shaped royal blue flowers throughout late spring and summer. It is low growing with evergreen foliage and soon spreads to cover a wide area. It is easy to grow and…  More Info

  • Sun shade: Full sun
  • Grows in: Borders
  • Flower Colour: Blue
  • Longevity: Shrub

3 Options From£10.99

within 14 working days

Sweet Pea 'King Size Navy Blue'

17 Reviews

A choice variety for its extraordinarily dark navy-blue flowers and superb, intense fragrance. Sweet Pea ?King Size Navy Blue? bears up to 5 large, frilled blooms on each slender stem, making this an excellent cut flower for filling small vases with just a few stems.  More Info

  • Sun shade: Full sun
  • Grows in: Borders
  • Flower Colour: Blue
  • Longevity: Annual

Just£2.99

within 14 working days

Nigella damascena 'Miss Jekyll'

2 Reviews

Beautiful and easy to grow, bearing rich blue flowers which seem to float amongst the finely cut leaves. They provide a charming show of bloom during the summer months. Very useful for bedding and cutting and the seed pods can be dried for winter decoration indoors.…  More Info

  • Sun shade: Full sun
  • Grows in: Borders
  • Flower Colour: Blue
  • Longevity: Annual

Just£2.69

within 14 working days

Eryngium 'Blue Steel'

4 Reviews

Sea Holly is a useful perennial for its ability to cope with hot, dry conditions and coastal locations. Eryngium 'Blue Steel? produces dramatic cones of tiny blue flowers that are surrounded by a spiky, electric-blue collar. The tall flower stems bring fabulous texture…  More Info

  • Sun shade: full sun
  • Grows in: Borders
  • Flower Colour: Blue
  • Longevity: Perennial

2 Options From£8.49

by the end of november 2020

Agapanthus 'Ever Sapphire'

4 Reviews

Agapanthus 'Ever Sapphire? is a semi-dwarf variety which produces multiple spikes of bright blue flowers all summer in a sunny or partly shaded position. Agapanthus are tough, fast growing and drought tolerant, these plants are a real 'must-have? for any style of garden…  More Info

  • Sun shade: sun or semi shade
  • Grows in: Borders
  • Flower Colour: Blue
  • Longevity: Perennial

2 Options From£9.49

by the end of august 2020

Echinops ritro

0 Reviews

Make a strong statement with this architectural plant, it will be a great contrast with the more traditional softer flowers in your garden designs. The stand-out features are the spiky globes of electric blue flowers that stand proudly on silvery green stems above…  More Info

  • Sun shade: Full sun
  • Grows in: Borders
  • Flower Colour: Blue
  • Longevity: Perennial

4 Options From£4.99

within 14 working days

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