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TL;DR — Quick Summary
Quick Facts
| Classification | Salvia x sylvestris — hybrid between nemorosa and pratensis |
| Hardiness | RHS H7 — fully hardy throughout the UK |
| Position | Full sun; free-draining soil |
| Flowering season | June to July; second flush August–September after Hampton Chop |
| Height | 50–70cm depending on variety |
| Key difference from nemorosa | Fuller, more branching spikes; slightly more naturalistic |
| Pruning | Hampton Chop after first flush for second flush |
| Best for | Cottage, naturalistic and prairie planting |
Salvia x sylvestris UK is the closest relative of Salvia nemorosa — a group of naturally occurring and cultivated hybrids between nemorosa and the meadow sage that share many of nemorosa’s best qualities while adding their own distinct character. Fuller, more branching flower spikes, broader leaves, and often a slightly later flowering period make sylvestris varieties a valuable companion to the nemorosa range rather than a direct alternative.
Salvia x sylvestris ‘Serenade’
RHS H7Soft lavender-blue flowers with a slightly more relaxed, open spike than typical nemorosa varieties — closer to a meadow quality while remaining garden-neat. One of our stronger-selling sylvestris varieties, particularly popular with gardeners looking for something slightly less formal than Caradonna. Fully hardy and responsive to the Hampton Chop for a second flush.
Salvia x sylvestris ‘Bläukoönigin’ (Blue Queen)
RHS H7One of the most widely grown sylvestris varieties — mid-blue flower spikes in June with a compact, upright habit at around 50cm. Works in exactly the same way as nemorosa in the border but with a slightly different blue tone and broader, more textured leaves. Responds well to the Hampton Chop for a reliable second flush.
Salvia x sylvestris ‘Rose Queen’
RHS H7Soft rose-pink flower spikes — providing the sylvestris group’s equivalent of the pink nemorosa varieties. Fuller and more branching than ‘Pink Friesland’ with a slightly more naturalistic quality. Excellent in cottage and naturalistic borders where a soft pink salvia spike is needed without the formality of the cultivated nemorosa range.
Salvia nemorosa
Salvia x sylvestris
☀ Position & Soil
Identical to nemorosa — full sun and free-draining soil are the key requirements. Sylvestris varieties are fully hardy and drought-tolerant once established. Avoid rich, moist soils which produce lush leafy growth at the expense of flowers. See the RHS salvia growing guide.
✂ Pruning
Same as nemorosa — cut back in spring once new growth appears, never in autumn. Apply the Hampton Chop (cut back by half) after the first flush in early July for a reliable second flush in August–September. See our salvia pruning guide.
❄ Hardiness
Fully hardy throughout the UK — RHS H7. No winter protection required anywhere. Highly drought-tolerant once established; no feeding required on most soils. Leave old stems on through winter for crown protection.
🌿 Pollinators
Excellent early-season pollinator value — the flower timing of June to July provides important forage when bumblebee queens are establishing colonies. See our salvias for pollinators guide.
Salvia x sylvestris UK varieties including Serenade and Blue Queen are available from Middleton Nurseries — all grown at our Staffordshire nursery using peat-free compost and dispatched nationwide.
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