24 of Tricia and Robin’s key plants at Chapelside

1 Astrantia major Gill Richardson Group This slowly spreading perennial prefers cool summers, and is frequently self-seeding. 70cm. RHS H7, USDA 4a-7b†.

2 Filipendula rubra ‘Venusta’ A tall and wind-resistant, self-seeding perennial that is valued for its candy-floss flower heads. 1.8m. AGM*. RHS H7, USDA 3a-8b.

3 Gillenia trifoliata Bushy shaped, long-lived perennial with a good winter presence. 1m. AGM. RHS H7, USDA 4a-8b.

4 Actaea rubra White flowers in spring are followed by shiny berries. Needs light shade and cool conditions. 50cm. RHS H7.

5 Cercis canadensis A small tree with startling pink flowers and leaves that are best appreciated when back-lit. Important to plant young. 9m. RHS H5, USDA 4a-8b.

6 Eryngium x zabelii ‘Jos Eijking’ Long lived and slowly clump-forming. Best in full sun. 70cm. RHS H5, USDA 5a-9b.

7 Jasminum humile Semi-evergreen climber that can form a large shrub. Needs sun and a sheltered spot. 3m. RHS H5, USDA 7a-10b.

8 Veronicastrum virginicum ‘Album’ Strongly upright demeanour over a very long period. 1.2m. AGM. RHS H7, USDA 4a-8b.

9 Malva moschata f. alba A short-lived but self-seeding perennial with a long season of summer flowers. An important component in Chapelside’s borders. 60cm. RHS H5, USDA 3a-8b.

10 Bupleurum longifolium Short-lived but seeds well. Is especially good as a cut or dried flower. 70cm.

11 Pratia pedunculata Very low growing but spreads easily. It looks lovely growing in lawns, although you will need to cease mowing for a few weeks to allow it to flower. Best on damp soils. 5cm. RHS H4, USDA 6a-10b.

12 Mathiasella bupleuroides ‘Green Dream’ A rambling perennial that is often short-lived but self-seeding. The foliage remains a feature in winter. 1m.

13 Rosa pteracantha Known as the winged thorn rose, this striking-looking plant looks great in rough grass where backlit by evening sun its thorns glow red. 3m. RHS H5.

14 Geranium Rozanne (= ‘Gerwat’) A useful groundcover sprawler that flowers from June well into the autumn. 50cm. AGM. RHS H7, USDA 5a-8b.

15 Rosa Grouse (= ‘Korimro’) A groundcover rose that flowers late and repeats relatively well. 60cm. RHS H6, USDA 5a-9b.

16 Sempervivum montanum Known as the mountain houseleek, this small, semi-succulent alpine will flourish in dry-stone wall tops and crevices. 15cm. RHS H7, USDA 5a-8b.

17 Dryopteris filix-mas This adaptable fern species thrives in Cumbria’s damp climate. 1m. AGM. RHS H7, USDA 4a-8b .

18 Acaena inermis Creates a prostrate ferny carpet with rusty burrs that last over winter. Spreads rapidly and is potentially invasive. 12cm. RHS H5, USDA 5a-8b.

19 Gentiana asclepiadea Slow to establish but rewarding once it does. Flowers midsummer and needs a cool position. 80cm. AGM. RHS H5.

20 Persicaria amplexicaulis A large, slowly spreading perennial with a long flowering season. Very low maintenance. 1.2m. RHS H7, USDA 4a-7b.

21 Potentilla fruticosa ‘Goldfinger’ Low shrub with summer flowers. It’s a cold desert plant so very tough. 1m. RHS H7, USDA 3a-7b.

22 Paris polyphylla Spring-flowering woodlander for humus-rich soils with intriguing, exoticlooking green flowers. Increases slowly. 45cm. RHS H7, USDA 3a-8b.

23 Galega officinalis ‘Alba’ Long-lived, summer-flowering perennial with attractive foliage. Mixes well with other plants. 1.2m. RHS H7, USDA 4a-9b.

24 Clematis ‘Étoile Violette’ Flowers profusely from July to September and is a vigorous climbing plant. 3m. AGM. RHS H6, USDA 4a-8b.