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.
Pitcairnia altensteinii (Link, Klotzsch & Otto) Lem.
Frost tender herbaceous perennial with unarmed, lance-shaped leaves, to 60cm long and 2cm wide, and racemes of white flowers surrounded by bright red bracts on stems to 45cm long, in spring. [RHSD].
Polemonium caeruleum L.
Fully hardy, clump-forming perennial with compound leaves composed of up to 50 lance-shaped leaflets, and terminal or axillary cymes of open bell-shaped, lavender-blue, rarely white, flowers in early summer. To 90cm. [RHSE, Hortus].
Polemonium caeruleum L. var. gracile
See also Polemonium caeruleum L. In the variety gracile the lower leaves are up to 25cm long and smooth. [RHSD].
Polygonum persicaria L.
Fully hardy, erect annual with greenish, magenta or pink flowers in dense cylindrical spikes in summer. [Hortus].
Portulaca grandiflora ‘Splendens’
The type Portulaca grandiflora Hook. is a spreading, red-stemmed annual with fleshy leaves and pink, red, yellow or white flowers in summer. The variety ‘Splendens’ has pale red flowers. To 20cm. [RHSE, Hortus].
Portulaca grandiflora unknown variety
A variety of Portulaca grandiflora Hook. See Portulaca grandiflora ‘Splendens’.
Portulaca thellusonii Lindl.
‘These much resemble in appearance an ice-plant, having succulent stems and cylindrical leaves. They are very showy plants, but require greenhouse treatment, although they may occasionally be turned out in the open border in summer. The best [include] Thellusoni, which is the strongest grower – it has large blood-red flowers’ [Gard. Chron. 1855].
Potentilla chrysantha Trev.
Fully hardy perennial with leaves consisting of 5-9 leaflets, to 10cm long, with serrated margins, and terminal cymes of golden yellow flowers, to 2.5cm across, on stems to 50cm. [RHSD, Hortus].
Potentilla formosa D.Don
Fully hardy, loose-clump-forming perennial with palmate leaves, red-tinged stems and loose cymes of saucer-shaped, dark crimson flowers in summer. There are many garden varieties. To 90cm. [RHSE, Hortus].
Potentilla missourica Schrad.
Fully hardy, upright perennial with pinnate leaves consisting of 5-19 leaflets and abundant yellow flowers in terminal panicles in summer. [RHSD, Hortus].
Potentilla recta L.
Fully hardy, erect, clump-forming perennial with flat cymes of saucer-shaped, pale yellow flowers from early to late summer. To 60cm. [RHSE, Hortus].
Potentilla species unidentified [1]
An unidentified plant. Many species and hybrids were figured in the botanical and horticultural journals of the day.
Potentilla species unidentified [2]
An unidentified plant. Many species and hybrids were figured in the botanical and horticultural journals of the day.
Potentilla species unidentified [3]
Unidentified plants. Many species and hybrids were figured in the botanical and horticultural journals of the day.
Potentilla x hopwoodiana Sw.
Potentilla nepalensis Hook. x Potentilla recta L. hybrid. A fully hardy hybrid with palmate leaves consisting of 5 leaflets and yellow flowers edged with rose, in terminal panicles, in summer. To 45cm. [RHSD, Hortus].
