It is a shame that forsythia is not more popular here. Years ago, there was a commonly perpetuated myth that winters were not cool enough for it, as well as lilac. We now know that both lilac and forsythia are happy to bloom here. Now, some might insist that there are so many evergreen shrubs that bloom nicely right through winter, that there is no need for deciduous blooming shrubbery.
They might not say so after seeing how spectacular forsythia is in bright yellow bloom as winter becomes spring. It uses the same tactic as the flowering cherries that bloom at about the same time, by dazzling spectators with profusion, before foliage develops to dilute the brilliance of the color! The flowers are tiny, but very abundant. Plump buds on bare stems can be forced indoors.
Forsythia X intermedia is the standard forsythia, although a few other specie and variations, including some compact cultivars, are sometimes seen in other regions. Mature specimens should not get much higher than first floor eaves, but can get twice as tall if crowded. The simple opposite leaves are about two or three inches long, and can turn color where autumn weather is cooler.
When the weather warms up a bit between frosty weather and winter storms, the rich fragrance of winter blooming daphne, Daphne odora, is at its best. The domed trusses of tiny pale pink flowers are not much wider than a quarter, so are easy to overlook while investigating the source of the fragrance. ‘Aureomarginata’, the standard cultivar, has glossy evergreen leaves with narrow pale yellow margins. Mature plants are only one or two feet high. All parts of the plant are incidentally toxic.
As a group, aloes really deserve more respect. Many will naturalize and thrive with only occasional watering through summer. Candelabra aloe, Aloe arborescens, wants a bit more water than most other aloes, but not much. It looks like a sensitive jungle plant, but is surprisingly durable, and very easy to propagate. Any pruning scraps can be plugged wherever new plants are desired.
Most of the brachyscome found in nurseries nowadays are the annual Brachyscome iberidifolia. Perennial species are rare. The name is still often spelled as ‘brachycome’, without the ‘s’, as it had been spelled for decades. Although it is a warm season annual, brachyscome is also popular now because it can bloom better through the locally mild winters than the warmth of mid summer.
Like euryops daisy, sweet pea shrub and New Zealand tea tree, the blue hibiscus, Alyogyne huegelii, blooms whenever it wants to, even if it wants to bloom sporadically through winter. It should bloom more abundantly in phases though spring and summer, but even that is difficult to predict. The three inch wide flowers are lavender blue, but can be rich purple or white. Pink is very rare.
It may not always bloom profusely, but sweet pea shrub, Polygala fruticosa, blooms sporadically through most of the year. Even when not much color is evident from a distance, a few flowers can likely be found on closer inspection. For some reason, bloom seems to be quite colorful now. Bloom phases should be more profuse in spring and summer. The pea flowers are soft purplish pink.
This is no timid vine! Flame vine, Pyrostegia venusta, is related to the lavender trumpet vine and blood red trumpet vine, and is just as vigorous. Although it can not be recommended for tight spaces or small refined gardens, it excels at obscuring concrete walls. It only needs wires or stakes to be convinced to climb. If it gets too big, it can be cut back after bloom to regenerate quickly.
What is it about Australian plants that makes them bloom in winter? Perhaps they think they are still in Australia where it is summer. Whatever the deal is, Geraldton waxflower, Chamaelaucium uncinatum, provides a scattering of small white, pale pink or lavender pink flowers from now until spring. It is no mistake that their bloom resembles that of New Zealand tea tree. They are related.