Salvia guaranitica 'Black and Blue'

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2 litre pot £15.99 £11.19
in stock (shipped within 2-3 working days)
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Buy Salvia guaranitica 'Black and Blue' sage: Towering and impressive

This perennial dies back to below ground level each year in autumn, then fresh new growth appears again in spring.

  • Position: full sun
  • Soil: moderately fertile, moist but well-drained soil
  • Rate of growth: average
  • Flowering period: August to October
  • Hardiness: half hardy (will need protection during winter)

    The flower colour of this glorious perennial is quite simply breathtaking, and this coupled with the plant's strong architectural presence, will ensure that heads will be turned towards the back of the border. From late summer to mid-autumn, 30cm long upright spikes carry sumptuously coloured purple-blue flowers, which are held at their bases by near-black calyces - hence the name 'Black and Blue'. This is a vigorous plant, but it is not fully hardy, so it will need some protection in winter. Therefore, it is ideally suited to grow near a sheltered, south facing wall.

  • Garden care: To prolong flowering remove the flower spikes as soon as they start to fade. Apply a generous 5-7cm (2-3in) mulch of well-rotted garden compost or manure around the base of the plant in autumn to help keep the roots warm.

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Beautiful healthy plants flowering throughout the summer


I always buy my plants from crocus. They're healthy, arrive in perfect condition and I can't wait to plant them in the garden.


Leamington Spa


I bought this again for my mum! Still flowering in December!


Gorgeous in a pot on the patio




Excellent quality plant


Arrived well packaged. Planted in a mixed border. It was beautiful throughout Summer and Autumn. I have protected it throughout the Winter and am hoping that it has survived. I did lose one last Winter ( bought from another source)


South East coast


Very Impressive.


A real statement plant. Similar to Amistad but 3x the size and with blue flowers & a lighter green foliage...Like Amistad it also seems to flower forever; Starting in mid June and still holding flowers well into December. It's a very vigorous grower; Mine reached 6ft tall and around 5ft in width in its first year, and can hit 2m in height when mature, so is very impressive. Flowers are beautiful...A very unusual shade of almost metallic blue & are good for bees. Leaves light green contrats beautifully with the flowers, and have a lovely lemon scent. Looks great on a patio, though due to its size, may not be suitable for very small gardens. A superb plant.




I would buy it again


I wouldn't be without it. I like a true blue and this is the real thing. The leaves are scented, the plant is tall (mine didn't grow as tall as in the instructions, but it is its first year, and I moved it in Spring) and strong. It is not a very hardy plant but mine survived without problem in spite of the "beast of the East" (in Kent, near a fence, in a sunny border).




My favourite plant!


A blessing to the late summer

Mary Lewis





Similar in habit to Armistad but with a good blue flower and lovely yellow leaf.



Head Turner!


Planted this in March, it is about half its expected height now, hasn't stopped flowering and is now late November. The colour is stunning, the structure is beautiful and I have a lot of people hinting for cuttings! I planted it next to the Salvia 'Armistad' for the contrast of the flower colours, they do look perfect together. I would highly recommend. Have to confess I have fallen in love with Salvia's.



Salvia guaranitica Black and Blue

4.8 8


Is it best to cut this plant right down and leave protected overwinter? Or leave and protect as it is? If cut down, will it grow the same shape next spring or more bushy? Thanks


Hello there I would cut it back and protect the crown from frosts with a mulch of dry leaves, or dried bracken. Yes next year the rootball will be a year older, so the plant could be bushier.

Please can you advise on suitable winter protection for Salvia Black and Blue? I garden in a fairly mild spot (200m from the sea in the East Neuk of Fife, windy but rarely very cold or very warm) and the salvias would be planted in free draining loamy soil, about a metre from a SW facing big sandstone wall. Would the salvias need protection and, if so, what would be the best form? I'm worried about piling on compost for protection, in case winter wet would be a problem. Thank you


Hello, It is difficult to say with any certainty the degree of protection needed as each garden forms its own unique microclimate. I would say however that the combination of cold and wet is the real killer of these plants, so it is crucial that the plant does not get waterlogged for any length of time in winter. I would also advise applying a generous dry mulch - something like straw, that wont hold moisture, but will offer some insulation.


Will this grow in well drained clay soil


Hello, Ideally this plant will be happiest in moderately fertile, moist but well-drained soil, so if you have very freely draining soil you should dig i lots of composted organic matter before yo plant and make sure it is kept relatively well watered.


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