Plant Guide

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Categories starting with B

Bulb (8)

Items starting with B

banksia-ericifolia

Banksia ericifolia

Heath-leaved Banksia, Heath Banksia, Lantern Banksia

Evergreen shrub with heath-like foliage and orange-red flowers appearing in autumn or winter, native to Australia and named after the botanist Joseph Banks who originally collected Banksia ericifolia in 1770. Bright green, linear leaves, 1-3 cm long, 1 mm wide, usually with two small teeth near the tips. Erect, cylindrical, orange to red flower spikes, 7-20 cm long, 5 cm across, followed by cone-like seed-bearing structures. Individual flowers with long, wiry, hooked styles. In nature, seeds are released by fire.

Prefers a sunny or partially shaded position in well-drained, slightly acidic soil. No or light pruning only to maintain shape and keep compact. Tolerates drought and light frosts. Is suitable for coastal areas, but grows only to a height of 1-2 m in exposed areas.

Beautiful specimen for flower display. Attracts birds feeding on nectar. Can also be used as a hedge or a screen. Flowers last well on water.

brugmansia-sanguinea

Brugmansia sanguinea

red or scarlet angel's trumpet, red Brugmansia, eagle tree, red floripondio

Evergreen shrub or sometimes a small tree, native to Colombia, Ecuador, and Peru. Large, ovate, felted leaves, often wavy or shallowly lobed,18-25 cm long, smaller on flowering stems. Solitary, pendulous trumpet-shaped flowers, 15-20 cm long, yellowish with scarlet-orange. Unlike the flowers of most other Brugmansia species, which are scented to attract moths for pollination, Brugmansia sanguinea flowers are not fragrant, and in their native habitat are pollinated by hummingbirds. All parts are poisonous. Naturalised in New Zealand.

Synonyms: Datura sanguinea, Datura roseiDatura rubella, Brugmansia bicolor, Brugmansia lutea.

Prefers a sheltered position in partial or full shade. In cool climates, a sunny position is fine too. Hot temperatures inhibit flowering. Difficult to propagate from vertical cuttings, but can be propagated from horizontal stem sections or layering. Tolerates light to medium frosts. May be damaged by moderate frosts, but generally survives.

Specimen shrub with a tropical appearance and beautiful flowers for most of the year. 

brunnera-macrophylla-jack-frost

Brunnera macrophylla 'Jack Frost'

Clump-forming, spring flowering, herbaceous perennial, mainly grown for its attractive basal foliage. Slowly spreading by creeping rhizomes. Large, heart-shaped, silvery white leaves with green veins and margins. Small, light blue, forget-me-not-like flowers, held above the foliage on 20-50 cm long stalks. Foliage is evergreen in mild climates, but in colder regions, the leaves die back from late autumn.

Ideal for a position where it receives morning sun and afternoon shade, but will also grow in full shade. Brunnera macrophylla 'Jack Frost' handles more sun than most other variegated brunneras, but in regions with hot summers, leaves may be scorched by afternoon sun. Prefers consistently moist, but well-draining, rich soils, and is not tolerant of dry conditions. Frost-hardy. For a tidy appearance, remove old or damaged leaves if present, just before the new foliage appears. Self-seeds, but seedlings may turn out different from the parent plant, and may even have lost the silvery leaf colour variegation. Can be divided in spring or autumn.

Excellent choice for the woodland garden. Lovely companion for other shade-loving plants such as hostas and ferns, for spring-flowering bulbs, or for dark-leafed plants such as black mondo grass (Ophiopogon planiscapus 'Nigrescens'. Good ground-covering and edging plant.

buddleja-salviifolia

Buddleja salviifolia

(South African) sagewood, sage-leaved butterfly bush, winter buddleja

Large shrub, endemic to southern and eastern parts of Africa, flowering in late winter and early spring with fragrant, pale mauve flowers with orange throats, arranged in large panicles. Narrow, lance-shaped, grey-green leaves with puckered and finely wrinkled surfaces, grey-white beneath, resembling those of sage. Semi-deciduous in colder climates. Fast-growing. Attracts bees and butterflies.

Prefers a sunny spot in any well-draining soil. Drought-tolerant. Suitable for exposed and coastal gardens. Tolerates moderate frosts (zones 9 and 10). Tends to have a somewhat untidy habit, and thus benefits from regular pruning. 

Very vigorous and floriferous plant. Great background plant with its silvery-grey foliage contrasting well with darker foliage. Make sure you have sufficient space as it will quickly grow into a large bush. To keep it compact,  prune the plant after flowering. Buddleja salviifolia can be pruned hard. Suitable as a large hedge or informal screen.

buxus-sempervirens

Buxus sempervirens

common box, English box, European box, boxwood

Evergreen fine-textured shrub or tree with small green leaves and inconspicuous greenish cream flowers. Glossy green, simple, ovate to oblong leaves, 1.5-2.5 cm long, arranged in opposite pairs along the stems. Foliage emits a distinctive scent that is not to everyone's liking. Fresh green spring leaves, turning mid to dark green later in the year. Clusters of tiny flowers without petals during late spring. Usually grown and maintained as a shrub, but can eventually reach tree-like proportions up to about 9 m tall.

Grows in a wide range of conditions, except waterlogged soil. Once established, Buxus sempervirens tolerates drought. In suitable growing conditions, a growth rate of 10-15 cm can be expected. In deep shade, very exposed situations, or very poor soils, growth is much slower. Most cultivars have a slower growth rate than the species. Responds well to trimming, and can be maintained to a height of 50 cm or less for many years. Trimming during late summer gives the plant a chance to produce sufficient new growth from early spring, and prevents sunburn of young leaves formed after the trim. After a number of years cut out some of the mature stems below the pruning height for the rest of the plant to improve ventilation through the foliage and avoid overcrowding at the top.

Widely used as a formal hedging plant with about 4 to 6 plants per meter for low hedges. Suitable for topiary projects. Since it can be trimmed to any shape, Buxus sempervirens is a very useful shrub to add a structural element to garden beds. Can also be grown in containers.