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

Napea dioica

Napea dioica

Glade Mallow

10365773709623|Napea dioica|Glade Mallow|

A bold perennial with large, palmately lobed leaves forming substantial non-invasive clumps. White flowers appear on separate male and female plants. The foliage is held elevated, keeping lower garden levels open. Resents drying out and requires abundant organic matter.

Native to eastern United States. Essential to maintain moisture through dry summers. Male and female plants needed for seed set. The architectural foliage and substantial scale make it suitable for large borders. The elevated leaf canopy creates interesting vertical layering without crowding ground level.

|June–Aug|white|green|upright clump|large borders; moist sites; native gardens|200|90|full sun to part shade|moist|organic-rich moisture-retentive|moderate|dioecious - male and female on separate plants; resents drying; native to E USA; needs organic matter|yes|summer bloom; bold architectural foliage; elevated leaves|pollinators|3||bold palmately lobed leaves; dioecious; non-invasive clumps; elevated foliage; white flowers; native; moisture-loving|//glenravennursery.com/cdn/shop/files/placeholder_portrait.png?v=1766878564&width=800|
Nepeta kubanica

Nepeta kubanica

Catmint

10365773742391|Nepeta kubanica|Catmint|

A substantial catmint with dense spikes of deep violet-blue flowers. Forms large clumps requiring full sun and resenting irrigation systems. Notably drought-tolerant once established. Deer-proof and shows no issues with feline interest.

Native to the Kuban region in southern Russia. Requires excellent drainage and full sun exposure. The deep flower colour and large size make it valuable for dramatic impact in dry borders. The drought tolerance and deer resistance add to its garden merit for challenging sunny sites.

|June–Aug|deep violet blue|green|upright clump|dry borders; gravel gardens; xeriscaping|100|70|full sun|dry|well-drained lean|low|full sun essential; no irrigation; drought-tolerant; deer-proof; no cat issues; native to Kuban Russia|yes|summer bloom; large scale; deep blue color|pollinators|5||large catmint; deep violet-blue; dense spikes; drought-tolerant; no irrigation needed; deer-proof; Russian native|//glenravennursery.com/cdn/shop/files/placeholder_portrait.png?v=1766878564&width=800|
Nepeta nepetella ssp. aragonensis

Nepeta nepetella ssp. aragonensis

Catmint

10365773775159|Nepeta nepetella ssp. aragonensis|Catmint|

A catmint subspecies with aromatic foliage and blue flowers in terminal spikes. Forms mounding clumps with the characteristic square stems of the mint family. The foliage releases fragrance when brushed or crushed.

Thrives in well-drained soil with full sun. Drought-tolerant once established. The long blooming period and aromatic qualities make it valuable for sunny borders. Typically shows good resistance to deer browsing. Combines well with roses, salvias, and other sun-loving perennials.

|June–Aug|blue|gray green|mounding|sunny borders; gravel gardens; dry sites|50|50|full sun|dry to average|well-drained|low|drought-tolerant; aromatic; deer-resistant; subspecies from Aragon region|yes|summer bloom; aromatic foliage; blue flowers|pollinators|5||aromatic foliage; blue flowers; mounding habit; drought-tolerant; long blooming; deer-resistant|//glenravennursery.com/cdn/shop/files/placeholder_portrait.png?v=1766878564&width=800|