Salvia guaranitica 'Black and Blue'


2 litre pot
pot size guide
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  • Position: full sun
  • Soil: moderately fertile, moist but well-drained soil
  • Rate of growth: average
  • Flowering period: August to October
  • Flower colour: dark purple-blue
  • Other features: softly hairy foliage
  • Hardiness: half hardy (will need protection during winter)

    The flower colour of this glorious perennial is quite simply breath-taking, and this coupled with the plants strong architectural presence, will ensure that heads will be turned towards the back of the border. From late summer to late 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 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.

Anemone × hybrida 'Königin Charlotte'

Japanese anemone ( syn. Queen Charlotte )

Brings autumn colour to the garden

£8.99 Buy


by PowerReviews
CrocusSalvia guaranitica'Black and Blue'

(based on 1 review)

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Head Turner!

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By Carrots

from Staffordshire

Verified Reviewer


  • Accurate Instructions
  • Attractive
  • Healthy
  • Lightweight
  • Versatile


    Best Uses

    • Garden

    Comments about Crocus Salvia guaranitica'Black and Blue':

    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.

    • Your Gardening Experience:
    • Experienced

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    1 Question | 1 Answer
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    • Q:

      Will this grow in well drained clay soil
      Asked on 20/4/2016 by Dobbo from Essex

      1 answer

      • Plant Doctor



        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.

        Answered on 25/4/2016 by Helen from crocus
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