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Salvia nemorosa ‘Dark Matter’

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P9(9cm Pot)

1 Litre(13cm Pot)

3+ plants

£25.00

£30.00

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6+ plants

Most Popular!

£45.00

£58.00

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9+ plants

£60.00

£80.00

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*excludes new for 2026 varieties • to see a full list of excluded plants click here*

Exceptional plants, better value

Mix & match • Create your own combination

P9 (9cm)

1 Litre

3+ plants

£25.00

£30.00

Save 5%

6+ plants

Most popular!

£45.00

£58.00

Save 10%

9+ plants 

£65.00

£80.00

Save 15%

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Plant information

Plant Description

Salvia nemorosa ‘Dark Matter,’ belonging to the resilient nemorosa family, presents an abundance of striking purple flowers that bloom from early summer to the end of autumn. Extremely hardy, it typically requires minimal winter protection. Well-suited for both pots and borders, this variety is not only visually appealing but also attracts bees and butterflies with its nectar-rich flowers. To encourage a second wave of flowering, deadheading is recommended. This salvia stands out as a versatile and vibrant addition to your garden.

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🌿 How to Care for Salvia nemorosa ‘Dark Matter’

How do I prune Salvia nemorosa ‘Dark Matter’?
Salvia nemorosa ‘Dark Matter’ should be left through the winter, as the dead wood protects them from frost. They can be pruned in early spring, and more vigorous varieties may be trimmed again around June.
Salvia nemorosa ‘Dark Matter’ can be susceptible to aphids, capsid bugs, whitefly, sage leafhoppers, and glasshouse red spider mites. Additionally, fungal issues like grey mould (Botrytis) can develop in cool and damp conditions, especially during overwintering.
Water Salvia nemorosa ‘Dark Matter’ regularly during dry spells, particularly newly planted ones. Established hardy salvias are drought-tolerant but benefit from deep watering during prolonged hot periods. Avoid waterlogging, as it can cause root rot.
Salvia nemorosa ‘Dark Matter’ require light feeding in spring with a balanced slow-release fertiliser or compost. Tender salvias benefit from fertilisation every 2–4 weeks during the growing season using a liquid feed for flowering plants. Over-fertilising should be avoided, as it can encourage foliage growth at the expense of flowers.
Propagation of Salvia nemorosa ‘Dark Matter’is prohibited without a licence
Salvia nemorosa ‘Dark Matter’ should be trimmed around April or May, a technique often called the “Chelsea Chop,” once new shoots start to appear. Cut back to the fresh growth, and continue deadheading throughout the season. Vigorous varieties can be pruned again in July to encourage bushier, greener plants rather than tall, woody stems. Salvias should not be cut back in autumn, as leaving the foliage intact helps protect the plant from frost.
Salvia nemorosa ‘Dark Matter’ moderately drought-tolerant once established, thriving in well-drained soil and full sun. Tender salvias are less drought-tolerant and require more consistent watering.
Salvia nemorosa ‘Dark Matter’ performs well in UK gardens if given full sun and free-draining soil. It’s hardy in most areas, flowers for months in summer and autumn, and suits borders or containers. Avoid winter wet and prune lightly in spring.

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