Plant Library

An index of the perennial plants grown and offered at Glenraven.
All A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Dianthus carthusianorum

Dianthus carthusianorum

Carnation

10365769285943|Dianthus carthusianorum|Carnation|

A clump-forming dianthus with narrow, grass-like foliage and upright, largely leafless stems topped with tightly packed clusters of deep pink flowers. Blooming through early and mid-summer, it brings a light, vertical accent to the front of sunny borders. Best suited to well-drained, open sites, where its tidy habit and extended flowering make it an easy, reliable choice.

|June–Aug|pink|green|clumping|front of border; sunny borders; dry, grassy plantings|60|30|full sun|average to dry|well-drained; dry, sandy or rocky soils|low|native from western and central Europe into southwestern Russia; narrow, grass-like foliage forms tight clumps from which mostly leafless stems rise; flowers are carried in dense clusters and persist over a long period; performs reliably in open, sunny positions |moderate|early to mid-summer flowering|pollinators|5||upright flower scapes; dense flower clusters; grass-like foliage; long flowering|//glenravennursery.com/cdn/shop/files/526F453F-51EA-4143-BD36-27926FB86886_1_105_c.jpg?v=1767572596&width=800|
Dianthus cruentus

Dianthus cruentus

Carnation

10365769351479|Dianthus cruentus|Carnation|

A compact dianthus forming neat, grassy clumps topped in late spring with dark red flower clusters held on short stems. Its restrained size and early flowering make it well suited to sunny, free-draining sites, including rock gardens and the very front of the border, where its colour reads clearly without overwhelming neighbouring plants.

|May|red|green|low clump|front of border; rock gardens; sunny, dry plantings|40|30|full sun|average to dry|well-drained; sandy or rocky soils|low|forms grassy clumps with short stems carrying dark red flower clusters held just above the foliage; particularly effective in open, sunny sites with free-draining soils |moderate|late spring flowering|pollinators|4||compact clump; dark red flower clusters; short flowering stems; dry-site tolerant|//glenravennursery.com/cdn/shop/files/placeholder_portrait.png?v=1766878564&width=800|
Dianthus gratianopolitanus ‘Grandiflorus’

Dianthus gratianopolitanus ‘Grandiflorus’

Carnation

10365769384247|Dianthus gratianopolitanus ‘Grandiflorus’|Carnation|

A compact, evergreen dianthus forming neat cushions of blue-green foliage. In late spring, ‘Grandiflorus’ produces relatively large, fragrant pink flowers held just above the leaves. Best suited to sunny, free-draining sites, it works well at the front of borders or in rock and gravel gardens, where its tidy habit and restrained scale can be appreciated year-round.

|May–June|pink|blue-green|low cushion|rock gardens; front of border; edging; gravel plantings|20|30|full sun|average to dry|well-drained; sandy or gritty soils|low|a compact, evergreen dianthus selected for larger-than-typical flowers within the species; forms tight cushions of glaucous foliage; prefers open, sunny positions with excellent drainage|moderate|spring flowering; evergreen foliage|pollinators|4||compact cushion; evergreen foliage; large fragrant flowers; tidy habit|//glenravennursery.com/cdn/shop/files/placeholder_portrait.png?v=1766878564&width=800|
Digitalis ferruginea

Digitalis ferruginea

Foxglove

10365769449783|Digitalis ferruginea|Foxglove|

A tall, architectural foxglove producing dense spires of copper-toned flowers in midsummer. Basal rosettes are present and attractive through winter, while the spent stems darken and persist into autumn, extending the plant’s visual presence. Usually grown as a biennial, it reseeds politely and adapts well to a range of garden settings, from gravel beds to mixed borders in sun or light shade.

|July–Aug|yellow-brown|green|upright spire from basal rosette|perennial borders; gravel gardens; mixed sun or light shade plantings|150|30|full sun to part shade|average|well-drained garden soils|low|a strongly architectural species with tall, densely packed flower spikes; first-year rosettes are attractive through winter, while spent stems persist darkly into autumn; typically biennial, though occasional third-year flowering occurs; self-seeds reliably without becoming intrusive; performs equally well in gravel, sun, or shade borders |moderate|summer flowering; winter rosettes; persistent stems|pollinators|4||tall architectural spires; copper-toned flowers; winter rosettes; reliable self-seeding|//glenravennursery.com/cdn/shop/files/placeholder_portrait.png?v=1766878564&width=800|
Digitalis parviflora

Digitalis parviflora

Foxglove

10365769515319|Digitalis parviflora|Foxglove|

A perennial foxglove forming evergreen clumps that hold their presence through winter. In early summer, upright stems carry tightly packed, small flowers in warm, rusty-brown tones, giving the plant a quiet but distinctive character. Adaptable and long-lived, it settles comfortably into well-drained soils in sun or light shade, where it reseeds sparingly and without fuss.

|June–July|red-brown|green|upright stems from evergreen clump|perennial borders; mixed borders; gravel gardens; winter-interest plantings|90|30|full sun to part shade|average|well-drained garden soils|low|a long-lived, perennial foxglove native to the mountains of northern Spain; evergreen clumps remain visible through winter; late spring to early summer brings sturdy stems clothed in fine hairs and densely packed, small, rusty-brown flowers; adaptable to a wide range of sites provided drainage is good; self-seeds lightly and predictably |moderate|winter foliage; early summer flowering|pollinators|5||evergreen clumps; rusty-brown flowers; long-lived perennial habit; restrained self-seeding|//glenravennursery.com/cdn/shop/files/placeholder_portrait.png?v=1766878564&width=800|