Salvia viridis 'Blue Monday'

A hardy salvia, with minute flowers but enlarged and brilliantly coloured flower bracts of purple-blue. More
100 seeds 020032 £1.95 In stock
Items will be despatched in 5-7 working days.
5 seedlings 510394-5 £5.95 Delivery late March
When in stock, please allow up to 2 weeks for delivery.
10 seedlings 510394-10 £9.95 Delivery late March
When in stock, please allow up to 2 weeks for delivery.
5 jumbo seedlings 510394-SP05 £7.95 Delivery early May
When in stock, please allow up to 2 weeks for delivery.

Or buy this as part of our Blue Mojito Collection and Amethyst and Sapphire Cut Flower Mix.

More Details

If you want a garden that looks good through the autumn as well as the summer, it's a good idea to add salvias. Use Salvia viridis 'Blue Monday' to line paths like lavender – it will look good from May to September.

A hardy salvia, with minute flowers but enlarged and brilliantly coloured flower bracts of purple-blue.

Genus Salvia viridis
Variety Blue
Type Hardy Annual
Common Name Blue Clary, Clary sage
Border Position Front, Middle
Soil Type Chalky, Fertile, Neutral
Scent Unscented
Site Full Sun
Moisture Well-drained
Height 45cm (18in)
Spacing 30cm (12in)
Sowing, Seeds, Planting Sow under cover February-April and/or late August-September. Or direct sow May or August. Hardy annuals can withstand a touch of frost and can be sown/planted straight into the ground in the autumn and will keep through the winter without protection. In colder areas you may wish to cover seedlings or keep in a cold frame/ unheated greenhouse.
Care Tips Give plants a good watering rather than just a little at a time. Grows well in a container pot.
Flowering May - September, 10-12 weeks from spring sowing.
Vase Life 10 days. Excellent and long-lasting, they also hold their colour when dried.
Harvesting Flower production: 3-4 months.
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
  • Sow Under Cover/Plant Indoors
  • Direct Sow/Plant Outdoors
  • Flowers/Harvest
Advice & Videos
Prepare your spring garden in autumn

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Plant Delivery - When in stock, please allow up to 2 weeks for delivery.

Seeds Delivery - Items will be despatched in 5-7 working days.

Click here to find out more information about our delivery rates and times.

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Salvia viridis 'Blue Monday' reviews

* * * * * Average based on 7 reviews
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Fabulous fillers

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Reviewed 4th January 2018 by Gilbey

I sewed these for the first time last year. They were strong lovely plants and flowered right through into late autumn.
They looked wonderful under the Nicotiana alata 'Lime Green' and frankly wherever else I put the excess plants.
Am about to reorder more seeds for this season.

Very good 'space filler'

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Reviewed 23rd July 2017 by Carmen Neumann

Seedlings started off slowly but really got going once I planted them out. They've been flowering ever since. Will definitely sow again next year.

Stunning blue salvia

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Reviewed 4th November 2016 by Janet Illman

I grew these from seedlings received in March this year and they still look good now, in November!! So easy to grow and requiring little attention & look gorgeous in the vase & in the garden, with a bit of back lit sunshine.

Excellent Flowers

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Reviewed 4th August 2016 by Heather Richards

These are excellent flowers. Very easy to grow from seed. They look very good in the border and around the edge of pots. Excellent, long lasting, cut flower.

A dream plant

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Reviewed 8th June 2016 by Katy Ling

I grew this plant for the first time last year in a newly landscaped garden and found that it gave me everything I was looking for - easy to germinate, fairly quick-growing, highly sought-after by bees, and low maintenance, requiring no dead-heading to go on well into Autumn. The blue bracts are very unusual, and, whilst it is not exactly clump-forming in itself, three or four plants together create a beautiful, spreading clump of blue and green, perfect for the edge of raised beds. It is ideal for filling gaps and lending softness against the rigidity of taller, more upright plants. All this, and hardly a nibble from our mollusc friends!


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Reviewed 5th September 2015 by Lorraine cooper

These look great in a vase with lime green annuals such as lime green nicotiana and euphorbia obligate. They are a lovely colour

I love it!

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Reviewed 27th July 2015 by Jo Marchant

I planted the seeds in the spring and patiently waited to see what the plant would look like in its full glory. I planted them at the front of the bed with white antirrhinum and ammi majus mixing in with them, and the whole show looks gorgeous. A lovely gentle plant that I think would mix well with many other plants, and I shall definitely be growing this again.