Salvia guaranitica 'Black and Blue'
- 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.
Reviewed by 1 customer
Displaying review 1
- Accurate Instructions
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:
All garden pests have natural enemies. The trick is to encourage these beneficial insects and other creatures to take up residence in your garden so that they can do the pest management for you. The most effective way to do this is to provide the conditioRead full article
Frost tender plants can be encouraged to grow far more quickly under cloches and one group of plants, the cucurbits, benefit from the extra warmth overnight. This allows them to photosynthesise for longer and squash, courgette and outdoor cucumber plantsRead full article
Tender perennials, such as pelargoniums, fuchsias, osteospermums and marguerites look great all summer, but unless they are given protection from the harsh winter weather, they will need to be replaced each spring. If you can do this, they will last for yRead full article