Notice

Colin Mills, compiler of the Hortus Camdenensis, died in late November 2012 after a short illness. As he always considered the Hortus his legacy, it is his family's intention to keep the site running in perpetuity. It will not, however, be updated in the near future.

Herbaceous Plants

A division of the Camden Park catalogues that is poorly defined. Annuals and perennial herbs were included here. This is retained but Annuals are also separately identified.

Penstemon procerus Dougl. ex Graham

Fully hardy, erect perennial with lance-shaped leaves and narrow spikes of small, purplish-blue flowers in summer.  To 30cm.  [RHSD, Hortus].

Penstemon speciosus Dougl. ex Lindl.

Hardy herbaceous plant with lance-shaped leaves, the flowers bright blue to purple, but pink and rose coloured cultivars exist.  To 60cm.  [RHSD, Hortus].

Penstemon venustus Dougl.

Borderline fully hardy evergreen sub-shrub with spiked panicles of tubular, funnel-shaped pale to deep violet flowers in early summer.  To 60cm.  [RHSE, Hortus].

Peperomia species unidentified

Peperomia are semi-succulent herbs with usually opposite or whorled leaves and a terminal or axillary spikes of crowded, small flowers. [FNSW].

Pericallis x hybrida R.Nordenstram

The wild form of Senecio cruentus is a perennial with purple flowers although it is now usually grown as an annual.  Many cultivars are available, and were in Victorian times, in a wide range of shape and form but mainly in shades of blue, purple, white and magenta.  It is uncertain if other species were involved in the development of the florist’s cineraria.  [RHSE, Hortus]. 

Petunia axillaris (Lam.) Britton, Stern & Pogenb.

Half hardy perennial with white flowers in summer.  To 60cm.  [RHSE, Hortus].

Petunia violacea Lindl.

Half hardy, short-lived, shrubby, perennial with purple flowers in summer.  To 25cm.  [RHSE, Hortus].

Petunia x hybrida Hort ex Vilm. var. grandiflora

Probably early Petunia nyctaginiflora x P. violacea hybrids.  See Petunia axillaris (Lam.) Britton, Stern & Pogenb.  Even the early hybrid garden forms were available in a range of colours from purple through pink and red to pure white.  The accompanying figure shows three forms, deep rose pink, pure white and white with a crimson throat.  These forms are instantly recognisable to any modern gardener.  The varietal name grandiflora refers to the larger flowers of the hybrids and is still in use today.

Phlox 'Leantii'

Probably a phlox hybrid.  The hand-writing is somewhat indistinct but it is included with the then recently introduced hybrids Van Houttii and Wheeleri.  I have found no description.

Phlox ‘Van Houtii’

It was described in the Botanical Register as a garden hybrid, possibly a cross between P. carolina and P. sauveolens, ‘leaving on a white ground a crimson evidence of its paternity.  The appearance of the plant is beautiful, far beyond anything yet seen in the genus Phlox; and we were almost going to say, beyond any thing among the hardy perennials in cultivation.’  It is a later flowerer, the plant figured having pinkish-purple flowers with white edges. the panicles were large and resembled a modern pernnial phlox. It grows to about 45cm.  [BR f.5/1843].

 

 

Phlox drummondii Hook.

Half hardy, erect to spreading annual with purple, pink, red, lavender-blue or white flowers in late spring.  The flowers often have a prominent, contrasting eye.  To 45cm.  [RHSE, Hortus].

Phlox paniculata L. var. grandis

Fully hardy, erect, herbaceous perennial with lance-shaped, toothed leaves, to 13cm long, and panicle-like cymes of salverform, fragrant flowers, to 2.5cm across, in shades of white, pink, lilac, orange or red, often with a contrasting eye, from summer to autumn.  To 1.2m. The name grandis suggests a tall-growing or large-flowered form.  I have found no specific reference to the variety.  [RHSE, Hortus].

Phlox x leopoldiana Paxt.

Paxton’s Dictionary describes Phlox Leopoldiana as a rose-coloured hybrid, introduced in 1847.  Its general colour is a bright rosy-crimson, the eye a rich deep crimson, and the throat white, making a striking contrast.  [FC p.28/1848].  The RHS Dictionary describes the flower as deep rose with a white eye and classifies it as a grandiflora type, growing to about 45cm.  

Phlox x wheeleriana Sweet

A hybrid phlox with deep pink flowers with a red centre.  [Maund vol.5, no.395/1834].

Phormium tenax Forst.

Half hardy clump-forming perennial with upright, linear leaves to 3m, and red-purple panicles of tubular dull red flowers in summer.  To 4m.  [RHSE, Hortus].

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