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.

Annuals and Biennials

Includes biennials. All of these plants will also appear in one of the Camden Park catalogue categories, usually Herbaceous Plants.

Consolida ambigua (L.) P.W.Ball & Heyw.

Fully hardy annual with fern-like leaves and tall spires of flowers in pink, white or violet-blue.  Many garden cultivars exist.  To 1.2m.  [RHSE, Hortus].

Convolvulus tricolor L.

Fully hardy, bushy, upright, then spreading perennial, usually grown as an annual, with funnel-shaped royal-blue flowers with a lighter centre in succession throughout summer.  Many cultivars are available.  To 40cm.  A very useful bedding and edging plant.  [RHSE, Hortus].

Coreopsis tinctoria Nutt.

Fully hardy erect annual, bearing solitary, bright yellow flower heads, shading to brown red at the bases.  Darker colour variants are available.  In early Victorian gardens the darker flowered forms, in shades of scarlet purple, edged with yellow, were often known as Calliopsis bicolor.  To 1.2m.  [RHSE, Hortus].

Cuphea ignea A.DC.

Frost tender, spreading, freely-branching, soft-stemmed shrub, often grown as an annual, with lance-shaped leaves and slender, deep red flowers, 2-3cm long, with a dark red band, white rim and 2 tiny black-purple petals, borne singly from the upper leaf axils from spring to autumn.  To 75cm.  [RHSE, Hortus].

Dianthus barbatus L.

Bushy, short-lived perennial, usually grown as a biennial, the clusters of small, sometimes double, often sweet-smelling flowers appearing in late spring and early summer.  There are many garden cultivars in a wide range of colours.  To 70cm.  [RHSE, Hortus].  

Dianthus chinensis L.

Annual or biennial with erect branched stems, lance-shaped leaves and flowers ranging in colour from white to dull red, often spotted and weakly bearded. Today garden forms are usually grown as an annual from seed, bearing single pink, red or white flowers, often with purple eyes and heavily fringed.  To 70cm.  [RHSD, Hortus].

Dorotheanthus apetalus (L.f.) N.E.Br.

Half hardy, erect red-stemmed annual with somewhat fleshy bright green leaves and solitary crimson, pink or white flowers with a dark central disk in summer.  To 10cm.  [RHSE, Hortus].

Downingia pulchella Torr.

Hardy annual with alternate lance-shaped leaves and blue and white flowers, the throat marked with green or yellow.  To 15cm.  [RHSD, Hortus].

Dracocephalum moldavica L.

Fully hardy, erect, bushy annual with aromatic, triangular, toothed leaves, to 4cm long, and slender spike-like racemes of whorled, 2-lipped, violet-blue to purple, sometimes white flowers, to 2.5cm long, in summer.  To 60cm.  [RHSE, Hortus].

Dracopis amplexicaulis (Vahl) Cass.

Fully hardy annual with simple or branching stems, alternate, oblong leaves, to 10cm long, and yellow to orange-purple, daisy-like flowers in summer.  To 1m.  [RHSD, Hortus].  Dracopis is a monospecific genus.

Drosanthemum flavum (Haw.) Schwantes

Yellow flowers.  [JD].  Dwarf, erect-growing shrub with slender branches and glittering, crowded leaves, nearly circular in section.  [Sonder – Flora Capensis].

Echium plantagineum L.

Fully hardy annual or biennial with a basal rosette of bristly leaves and rich red-purple flowers in summer. Echium violaceum may be a form with paler flowers of a more violet colour.  To 60cm.  [RHS, Hortus].

Erysimum cheiri (L.) Crantz

Fully hardy evergreen perennial, usually grown as a biennial, with open, sweet-scented bright orange-yellow to reddy-brown flowers in late winter to spring.  To 80cm.  [RHSE, Hortus].

Eustoma russellianum (Hook.) G.Don

Upright annual or biennial with oblong leaves and pale purple flowers.  To 90cm.  [RHSD, Hortus].

Godetia bifrons Hort.

Fully hardy biennial with purple flowers with a prominent crimson blotch in the centre of the petals, in summer.  To 45cm.  [BR f.1405/1831].  Said to be a hybrid between Clarkia amoena A.Nelson & J.F.Macbr. roseo-alba, synonym Oenothera roseo-alba Bernh., and Clarkia amoena A.Nelson & J.F.Macbr. lindleyi.

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