Trees and Shrubs
A division of the Camden Park catalogues that is not clearly defined. In broad terms it includes all plants with woody stems except conifers and fruit trees and shrubs.
Hovenia dulcis Thunb.
Fully hardy, upright then spreading tree with generally heart-shaped , toothed, glossy leaves, to 20cm long, downy beneath, and cymes, to 7cm across, of tiny, greenish flowers in summer. After flowering the stalks swell, becoming reddish, and are fleshy, sweet and edible. To 12m. [RHSE, Hortus, Hilliers’].
Hoya australis R.Br. ex J.Traill
Frost tender, vigorous, twining, succulent climber with broadly elliptic, fleshy leaves, densely hairy beneath, and umbels, to 6cm across, of 12-40, star-shaped, fragrant white flowers, to 4cm across, with a red spot at the base of each petal and red coronas. To 10m. [RHSE, FNSW, Blomberry].
Hoya bella Hook.
Frost tender spreading to pendant, epiphytic shrub with arching, downy, soft stems, narrowly ovate, fleshy leaves, to 3cm long, and umbels, to 4cm across, of 7-9, star-shaped, sweetly scented white flowers, to 1.5cm across, with red-violet coronas, in summer. To 45cm by 45cm. [RHSE].
Hoya carnosa (L.f.) R.Br.
Frost tender, vigorous, stem-rooting, succulent, often epiphytic climber, with rigid, fleshy leaves, to 8cm long, and dense, convex umbels, to 6cm across, of up to 20 star-shaped, waxy, night-scented, pale pink flowers, to 1.5cm across, with red coronas, from spring to autumn. To 6m or more. [RHSE, Hortus].
Hoya imperialis Lindl.
Frost tender, twining climber with downy stems and elliptic, leathery, fleshy leaves, to 23cm long, and umbels of up to 12 star-shaped, reddish brown to purple flowers, to 7cm across, with white coronas, in summer. To 6m or more. [RHSE].
Hoya species unidentified [1]
Possibly an unidentified Australian species, perhaps one of several forms of Hoya australis R.Br. ex J.Traill, which see. The date of accession is suggestive of an Australian species sent from Wide Bay by John Bidwill.
Hoya species unidentified [2]
Possibly an unidentified Australian species, perhaps one of several forms of Hoya australis R.Br. ex J.Traill, which see. The date of accession is suggestive of an Australian species sent from Wide Bay by John Bidwill.
Hydrangea macrophylla (Thunb.) Ser.
Fully hardy, rounded, deciduous shrub with broadly ovate, coarsely toothed leaves, to 20cm long, and almost spherical corymbs, to 20cm across, of large blue or pink, sterile flowers. To 2m or more under suitable conditions. Decorative garden Hydrangeas are mainly varieties of the Japanese H. macrophylla, pink to blue, all sterile. H macrophylla cultivars are divided into two groups, Hortensias and Lacecaps. [RHSE, Hilliers’].
Hydrangea macrophylla (Thunb.) Ser. subsp. serrata (Thunb.) Makino
Fully hardy, compact, erect, deciduous shrub with narrow, ovate, pointed leaves, to 15cm long, and flattened corymbs, to 10cm across, composed of numerous white, sterile flowers around the outside, with small pink or blue, fertile flowers in the centre, from summer to autumn. To 1.2m or more under suitable conditions. [RHSE, Hilliers’, Hortus].
Hymenaea courbaril L.
Frost tender, evergreen tree with pointed, oblong-ovate leaves and large yellow, purple-striped flowers. To 20m. [RHSD, Hortus].
Hymenosporum flavum (Hook.) F. Muell.
Evergreen shrub or tree, to 8m., with fragrant, bright yellow flowers, to 2.5cm across. [RHSD, Hortus].
Hypericum calycinum L.
Fully hardy, dwarf, evergreen or semi-evergreen shrub, spreading by runners, with oblong leaves, to 10cm long, and cymes of 2 or 3, saucer-shaped, bright yellow flowers, to 10cm across, in summer and autumn. To 60cm. [RHSE, Hortus, Hilliers’].
Hypericum olympicum L.
Fully hardy deciduous shrub with erect stems, lance-shaped leaves, to 4cm long, and cymes of up to 5 star-shaped, deep yellow flowers, to 6cm across, in summer. To 25cm. [RHSE, Hortus].
Ilex aquifolium L.
Frost hardy, usually erect, dense, pyramidal or oblong, evergreen shrub or tree, with glossy, dark green, leaves with spine-toothed or spiny margins, and long-lasting red, orange or yellow berries in autumn and winter. To 25m. [RHSE, Hortus, Hilliers’].
Ilex aquifolium L. var. variegata
For a description of the species see Ilex aquifolium L. A large number of variegated garden varieties are available, with gold, silver or cream-coloured markings.
