English Grass, botanically known as Armeria pseudarmeria 'Ballarina White', is a compact and clump-forming perennial that forms dense tufts of narrow, needle-shaped leaves. It produces spherical flower heads in shades of white that stand out clearly above the green foliage.

The plant blooms in spring and summer, typically from May to June, and thrives best in full sun. It is completely hardy and requires little fertiliser, making it suitable for both beginners and experienced gardeners.

With a height of about 20–40 cm and a width of 10–30 cm, English Grass fits well in the foreground of perennial beds, in rock gardens, or as a border plant. It can also be used in pots, where its compact growth form gives a neat and tidy appearance.

The Dark Mullein (Verbascum nigrum 'Album') is a perennial that stands out for its upright growth and white flowers, which appear from July to September. Depending on growing conditions, the plant can reach a height of about 80 to 200 cm and forms a striking vertical structure in the garden.

The leaves are green and oval-shaped, and the plant thrives best in full sun, where it develops optimally. It prefers well-drained soil and a moderate level of fertilisation. The Dark Mullein is completely hardy and therefore well suited to the Danish climate.

The perennial is often used in gardens and parks, where it can be planted singly or in groups with a spacing of about 45–60 cm. It pairs well with other summer-flowering perennials and contributes both height and a natural expression to the planting.

The Autumn Anemone 'Andrea Atkinson' is an upright-growing perennial that produces elegant white flowers on slender stems. The flowers stand out clearly above the feathery, dark green foliage and give the garden a light and airy appearance.

The plant blooms from August to October and contributes colour and structure to late summer beds. It thrives best in bright to partially shaded locations and in well-drained, nutrient-rich soil.

The perennial grows to about 90 cm tall and spreads slowly with short runners, making it suitable for forming small colonies. It can be used as a solitary plant or in groups and is also suitable for cutting.

With a planting density of about six plants per square metre, it can create a harmonious and full appearance in the perennial bed.

The Creeping Evening Primrose (Oenothera macrocarpa) is a low, cushion-forming perennial that grows about 15–30 cm tall and spreads slowly in the garden. It has narrow green leaves with reddish stems and a prostrate growth habit, making it suitable as a ground cover or border plant.

The plant thrives best in a bright location in full sun and in well-drained soil. It tolerates dry conditions and requires only minimal care once established. For a dense appearance, it is recommended to plant 4–6 plants per square metre.

The flowering period is between June and September, when the plant produces large, bright yellow flowers that open in the evening and remain open until the next day. The flowers attract moths and other pollinating insects, contributing to a lively garden environment.

The Creeping Evening Primrose is particularly well suited for rock gardens, slopes, and sunny borders, where its flowers and foliage create a long-lasting display of colour in summer.

Iris pseudacorus is a perennial that grows about 70 to 100 cm tall. It develops large yellow flowers with dark markings that stand out clearly in the garden during the flowering period from June to July.

The plant thrives best in full sun and requires moist to wet soil, making it ideal for placement by ponds, pools, or other damp areas. It can be planted individually as a specimen plant or in smaller groups to create a natural look.

The leaves are green and upright, and the growth is moderately vigorous. Iris pseudacorus can also be used as a cut flower, but its main value lies in its ability to bring structure and colour to the moist zones of the garden.

The spurge 'Purpurea' (Euphorbia amygdaloides 'Purpurea') is a compact, evergreen perennial distinguished by its reddish foliage and its ability to maintain colour and structure throughout the season. The plant thrives best in a bright to partially shaded location and can retain its foliage year-round under sheltered conditions.

It grows to about 30–50 cm high and 20–30 cm wide, making it suitable as a border plant or for creating contrasts in beds. A planting density of 5–6 plants per square metre is recommended to achieve dense planting.

The flowering period is between April and June, when the plant develops characteristic flowers in red and lime green in large umbels. It is well suited for cutting and can be used in bouquets.

The plant sap is poisonous and should be handled with care. The species is fully hardy and generally grows moderately fast under suitable conditions.

Penstemon 'Garnet' is a perennial that stands out for its dark red flowers and slender, upright growth. The plant has green, lance-shaped leaves and blooms in the summer months, typically from July to August.

It thrives best in full sun and prefers well-drained soil. With a height of about 70–80 cm and a width of 20–30 cm, it fits well in perennial beds, where it adds height and colour contrast.

Beardtongue can be used in gardens and parks as well as in containers. It is fully hardy and suitable for cutting, making it useful as a cut flower in bouquets.

The plant grows moderately and requires a moderate amount of fertilisation to maintain healthy blooms throughout the season.

The perennial sage (Salvia nemorosa 'Ostfriesland') is a perennial plant that forms upright stems with dense spikes of blue-violet flowers. It grows to about 40 cm tall and is well suited for flower beds, where it adds colour and structure in summer.

The plant thrives best in a bright and sunny location with well-drained soil. It tolerates dry conditions once established and requires only minimal maintenance. If the faded spikes are regularly removed, the flowering period can be extended into late summer.

Perennial sage is suitable for cutting and is often used in bouquets. It has aromatic, fragrant foliage and attracts many pollinators such as bees and butterflies, making it a good choice for insect-friendly gardens.

With a planting density of 5–6 plants per square metre, it forms a dense and harmonious bed. It is fully hardy and suitable for both private gardens and parks.

The Purple Coneflower (Echinacea 'Tomato Soup' (r)) is a perennial plant that adds a warm orange-red colour and a pleasant fragrance to the garden. The plant typically grows 60–80 cm tall and 20–40 cm wide, making it suitable as a middle or background plant in flower beds.

It thrives best in full sun and should be planted about 40 cm apart to ensure good air circulation. The flowers have a diameter of 10–12 cm and appear from July to September. The leaves are green and lance-shaped, and the growth is upright and moderately strong.

The Purple Coneflower is completely hardy in the Danish climate and requires only moderate fertilisation. It is suitable both as an ornamental plant in perennial beds and as a cut flower. The variety is known for its long flowering period and its ability to attract bees and butterflies.

The plant prefers well-drained soil and can withstand dry periods once established. It is generally resistant to diseases and pests and requires only minimal maintenance.

Mountain mint (Calamintha nepeta ssp. nepeta) is a low, upright-growing perennial that forms dense clumps of grey-green foliage with a characteristic spicy scent. The plant grows about 30–50 cm high and 20–40 cm wide, making it suitable as a ground cover or border plant in beds and along paths.

It thrives best in a bright or slightly shaded location with well-drained soil and blooms from July to October with small, light purple flowers. The flowers attract both bees and butterflies and contribute to a lively garden environment in summer and early autumn.

Mountain mint is hardy and requires only minimal care. It can be used as an ornamental plant but also as a culinary herb, with the aromatic leaves usable in the kitchen. A planting density of about 5–6 plants per square metre is recommended to achieve dense coverage.

The plant is known for its fragrance and its ability to form a low, green carpet that suppresses weeds. It is also known as field thyme and is one of the more versatile perennials for sunny gardens.

Edelweiss (Leontopodium soul. 'Alpina White') is a compact and slow-growing perennial characterised by its distinctive white flowers and grey-green, elongated leaves. The plant is naturally adapted to alpine conditions and thrives best in full sun with well-drained soil.

It grows to about 25 cm in height and spreads to a width of 20–30 cm. The flowers typically measure between 2 and 5 cm and appear in a white shade that forms a striking contrast point in rock gardens or on sunny slopes.

Edelweiss is completely hardy and suitable for use in alpine gardens, parks, and as ground cover. It can also be used as a cut flower, with its blooms retaining their shape and colour for a long time.

The plant requires minimal maintenance but thrives best when it receives plenty of sun and is not too moist. It is therefore ideal for dry, sunny areas where other plants may struggle to establish.

The Gaura, botanically known as Gaura lindheimeri 'Siskiyou Pink', is a perennial that stands out for its delicate pink flowers and light, upright growth habit. The plant reaches a height of about 50–100 cm and a width of about 30–50 cm.

The leaves are green and lance-shaped, giving the plant a light and airy appearance. It blooms in the summer months, typically from July to September, and the flowers sit on slender stems that move gently in the wind.

The Gaura thrives best in sun or partial shade and prefers well-drained soil. It is well suited for planting in gardens and parks but can also be used in containers, where it provides a natural and blooming appearance.

The plant is moderately hardy and has a moderate growth rate. It can be used as a cut flower and adds a light and romantic touch to floral arrangements.

Blyrod (Ceratostigma plumbaginoides) is a compact, ground-covering perennial that forms dense stands in beds, pots, and parks. It grows to about 25 cm high and 20–40 cm wide, making it suitable as a border plant or for filling gaps in plantings.

The plant thrives best in full sun and normal garden soil with a medium nutrient level. It is completely hardy in the Danish climate and requires only moderate fertilisation. Blyrod grows moderately fast and forms a dense plant cover that can help suppress weeds.

The flowers are blue and measure 1–5 cm in diameter. They appear from August to September and provide a striking colour accent in late summer. The leaves are green and oval, and in autumn they take on a reddish hue that adds additional tones to the garden.

When planting, a distance of about 50–55 cm between plants is recommended to achieve a dense and even result. Blyrod is suitable for gardens, parks, and pots, where it can be used as ground cover or as part of a multi-layered planting.

Lady's Mantle (Alchemilla erythropoda) is a compact perennial that grows to about 25 cm tall and thrives in both sun and partial shade. It is known for its soft, slightly hairy leaves that collect small water droplets along the leaf edge, giving a characteristic, dew-like appearance.

The plant blooms from June to September with small, lime-green to yellow-green flowers in loose clusters. It is well suited as a ground cover and can be planted at a density of about 9 plants per square metre to achieve even coverage.

Lady's Mantle is a hardy and easy-to-grow plant that thrives under many conditions – from sunny to shady locations. It is suitable for beds, borders, and natural gardens, where it adds structure and colour throughout the growing season.

The decorative leaves and flowers can be used in bouquets and decorations, and the plant requires only minimal maintenance. It is therefore a practical choice for gardeners who want a green and lush appearance without much maintenance.

Scabious 'Perfecta' (Scabiosa caucasica) is a perennial that develops large violet-blue flowers on slender yet sturdy stems. The plant blooms from June to October, giving the garden a light and elegant structure.

It thrives best in a bright location with full sun and well-drained soil. The leaves are dark green and deeply lobed, giving the plant a distinctive appearance even outside the flowering season.

With a height of about 70 cm and a planting density of 5–6 plants per square metre, it is suitable both as a background plant in perennial beds and as part of a dense flower group. It is also well suited for cutting, as the flowers retain their shape and colour in the vase.

Scabious 'Perfecta' is popular with bees and hoverflies, making it a good choice for those who want to promote biodiversity in the garden.

Burning Love (Lychnis chalcedonica) is a perennial that stands out for its upright stems and flat flower clusters in bright orange-red tones. The plant grows to about 100 cm tall and has oval, fresh green leaves that form a dense and harmonious growth.

The perennial blooms in June and July and can continue flowering into late summer. It thrives best in full sun and in normal garden soil, where it develops best with a moderate level of fertilisation. It is fully hardy and therefore suitable for most British gardens.

Burning Love is often used in perennial beds, gardens, and parks, and is also suitable as a cut flower due to its sturdy stems and long-lasting blooms. With its upright growth habit and striking colour, it brings life and structure to flower beds.

Avens 'Nordek' (Geum heldreichii) is a dense, ground-covering perennial that forms small colonies and adds structure to flower beds. It grows to about 30–40 cm tall and often has evergreen leaves that maintain the plant’s visual appeal throughout the year.

The flowering period is in June–July, when the plant produces bright orange flowers, followed by decorative, fluffy seed heads. Under favourable conditions, a smaller second bloom may occur in late summer.

The plant thrives best in sun or light shade and prefers soil that is not too dry and well-drained. It is suitable as ground cover and can be planted at a density of 7–9 plants per square metre.

Avens attracts a range of pollinators, including bumblebees, solitary bees, hoverflies, and butterflies seeking nectar in the flowers. It is therefore a good choice for gardeners who wish to promote biodiversity.

With its moderate growth and ability to form green clumps, it fits well in perennial beds, borders, and as part of mixed plantings, where it contributes warm colours and natural fullness.

The Scabious (Knautia macedonica 'Mars Midget') is a perennial plant that forms low cushions and develops dark red flower heads with a diameter of 1–5 cm. The flowering period extends from June to September, giving the garden an intense colour throughout the summer.

The plant typically grows 20–40 cm high and wide and has dark green, deeply lobed leaves that form a dense and decorative base. It is well suited as a border plant or for the front of perennial beds, where it can be planted about 50 cm apart.

The Scabious thrives best in full sun and well-drained soil. It requires only moderate fertilisation and is completely hardy, making it suitable for both gardens and parks. The species is known for its robustness and ability to withstand dry conditions.