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.

Anchusa capensis Thunb.

Frost hardy, erect biennial, often grown as an annual, with small, very bright blue flowers, resembling ‘Forget-me-not’, in summer.  To 18cm.  [RHSE, Hortus].

Anemone hupehensis (Thunb.) Bowles & Stearn var. japonica

Fully-hardy, vigorous, erect, woody-based, suckering perennial with branched stems bearing umbels of semi-double flowers varying in colour from bright purple, almost scarlet, through mauve, to rose-pink and white, from late summer to autumn.  To 90cm.  [RHSE, Hortus].  Anemone x hybrida, a hybrid between A. hupehensis var. japonica and A. vitifolia, very similar and also known as ‘Japanese anemone’, is more common in gardens today.  [RHSE]. 

Angelonia angustifolia Benth.

Frost tender perennial sub-shrub with lance-shaped leaves, to 8cm, and slender racemes of deep mauve to violet flowers in early summer.  To 45cm.  [RHSD, Hortus].

Angelonia floribunda Hort.

Angelonia is a genus of about 25 tender herbs or sub-shrubs with simple, usually crnate leaves, and terminal spikes of blue or purple flowers.  Angelonia floribunda is described as having purple flowers in Johnson’s Dictionary.  It is probably a varient of one of the 6 or 7 species known to cultivation at this time but I have been unable to identify it further. 

Anthyllis barba-jovis L.

Frost-hardy, evergreen perennial shrub with pinnate, silvery leaves, with up to 17 leaflets, and dense racemes of pale yellow flowers in summer.  To 3m.  [RHSD, Hortus, Hilliers’].

Antirrhinum majus ‘Album’

See Antirrhinum majus L. for a description.  Album has white flowers.

Antirrhinum majus ‘Bicolor’

See Antirrhinum majus L. for a description.  Bicolor has scarlet and white flowers probably very similar to the figure given here.  [PD].

Antirrhinum majus ‘Purpureum’

See Antirrhinum majus L. for a description, ‘Purpureum’ has purplish-red flowers.

Antirrhinum majus L.

Borderline fully hardy perrenial with spikes of showy ‘snapdragon’ flowers in a wide range of colours in summer and autumn.  There are many cultivars which are highly variable in habit and size.  Individual cultivars may be from 25cm-2m in height and 15-60cm wide.  A. majus can be a long-lived border perennial but is usually grown as a bedding annual as it often succumbs to rust if grown for too long.  [RHSE, Hortus].

Antirrhinum majus L. varieties

Probably varieties of Antirrhinum majus L., which see, rather than the Antirrhinum hybridum of Linnaeus, the current name of which is Kickxia spuria (L.) Dumort.  The latter is a weedy perennial from Britain.

Aponogeton distachyos L.f.

Frost-hardy aquatic perennial with strap-like, oblong, floating leaves and small, hawthorn-scented white flowers held above the water from winter to autumn.  A reliable, mainly winter-flowering plant in my garden.  [RHSE, Hortus, FNSW]. 

Aptenia cordifolia (L.f.) Schwantes

Frost tender, freely branching, succulent perennial with broadly ovate, bright green leaves and solitary red-purple flowers in summer or autumn.  To 5cm, spreading. A useful plant as a soil-binder.  [RHSE, Hortus].

Aquilegia atropurpurea Willd.

Fully hardy short-lived perennial with purple flowers with greenish purple sepals in spring and early summer.  To 30cm.  [RHSD, Hortus].  See also Aquilegia vulgaris L.

Aquilegia glandulosa Fisch.

Very attractive species with nodding lilac-blue sepals and white-flushed blue petals.  To 30cm.  [RHSD, Hortus].

Aquilegia glandulosa Fisch. var. grandiflora

For a description of the species see Aquilegia glandulosa Fisch.  Probably similar to the variety major, a larger form with blue and white flowers.  [Hortus].

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