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.

Blumenbachia insignis Schräd.

Trailing and twining annual with palmate leaves and white flowers.  [RHSD, Hortus].


Briza maxima L.

Fully hardy, loosely tufted, erect annual grass with attractive nodding flowers.  To 45cm.  [RHSE, Hortus].

Brunonia australis R.Br.

Half hardy perennial rock plant with hairy leaves to 4.5cm long in a basal rosette, and blue flowers in terminal, pincushion-like heads, to 2.5cm across.  To 25cm.  [RHSD, Hortus].

Calandrinia ciliata DC. var. menziesii (Hook.) Macbr.

Calandrinia ciliata var. menziesii is an annual with fleshy, linear, grey-green leaves, to 10cm long, on spreading, erect stems and solitary, axillary, crimson, rose-red, occasionally white, flowers in late summer.  To 60cm.  [RHSD, Hortus].

Calandrinia discolor Lindl.

Annual or perennial, leaves purple beneath, flowers bright light purple, to 5cm across in long racemes.  To 45cm.  [RHSD].

Calceolaria bicolor Ruiz. & Pav.

Half-hardy sub-shrub, often grown as a biennial, with ovate, serrated leaves, to 8cm long, and many-flowered inflorescences bearing small, lime-green flowers with an unspotted corona, light yellow upper lip and deeper sulphur-yellow lower lip, shading to white, in summer.  To 2m.  [RHSD, Don]. 

Calceolaria lutescens Hort.

An unidentified species or variety of Calceolaria.  All we can say with certainty is that it had a yellow flower. 

Calceolaria ringens Hort.

Hybrid calceolarias.

Florist’s calceolaria: Florists’ calceolarias are hybrids of several, often indeterminate species.  ‘Bloom perfectly round; colour, back bright as front; lip, throat, and calyx, small; markings, if any, decided and dense; substance thick and stiff; stems strong and branching; footstalks elastic; plant decidedly shrubby, and the bloom just above the foliage.’  [FC p.10/1848].  ‘This is a favourite genus, and contains some very showy species, from which an almost countless number of handsome hybrids have been raised and are raising.’  [PD, 1849]. 

Calceolaria species unidentified

This is probably one of the many garden hybrids or varieties developed in the 1840s and 50s.  Later editions of Paxton's Dictionary comment on Calceolaria ringens: ‘Garden varieties – these are too numerous to allow even a select list; many however are very beautiful.’  See also Calceolaria lutescens Hort.

Calendula stellata Cav.

Frost tender annual with erect stems, usually much branched, sharply-toothed, lance-shaped leaves, to 14cm, and golden yellow to orange flowers, tipped with purple, and with violet-purple to black disc florets.  To 50cm.  [RHSD, Hortus].

Callistephus chinensis (L.) Nees

Upright summer annual with coarsely toothed leaves and very striking single or double flowers in shades of pink, red, blue, purple and white.  Variable in height, to 75cm.  [RHSD, Hortus].  There are many garden forms.

Calluna vulgaris (L.) Hull.

Very variable, hardy, prostrate to erect shrub with green to grey leaves, to 3mm long, and racemes of white to red flowers in summer and autumn.  To 60cm.  There are many garden varieties.  [RHSE, Hortus].

Calystegia hederacea Wall. var. flore pleno

Fully-hardy trailing or climbing perennial with hairy, lance-shaped leaves, to 10cm long, and solitary, double, rose coloured flowers, to 5cm across and 3.5cm long, the corolla divided into many narrow, petal-like lobes, in summer and autumn.  To 5m.  [RHSD, Hortus]. 


Campanula lactiflora M.Bieb.

Hardy perennial with toothed oblong leaves and whiteish-blue flowers in terminal panicles.  To 1.2m or more.  [RHSD, Hortus].

Campanula latifolia L.

Erect, spreading perennial with lance-shaped, toothed leaves and loose racemes of funnel-shaped blue flowers in summer.  To 1.5m.  White-flowered forms occur naturally.  [RHSD, Hortus].  See also Campanula latfolia L. var. macrantha A.DC.

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