Hakeas: Flowers are similar in appearance to the grevillea, but with differences in their fruits. Hakea fruits persist on the plant until the plants are either damaged in some way or burnt in a bushfire.Australian members of the proteaceae family are well known and popular in cultivation. Many varieties of banksias, grevilleas and hakeas are represented in local gardens.
This time we will concentrate on the hakeas. Firstly we will describe some species from eastern Australia and in the future, some Western Australian hakeas will be featured.
Hakeas, in general, grow into medium to tall shrubs.Their flowers are rich in nectar and are usually held in clusters. Honeyeaters are attracted to the blooms.
Hakea flowers resemble the blooms of grevilleas in their structure. A major differencebetween the two groupsis in their fruits.
Grevillea fruits release their seeds as soon as they mature. In the case of hakeas, they have substantial woody fruits that persist on the plant until the plants are either damaged in some way or burnt in a bushfire.
After either of these catastrophes, the woody fruits open and releasetwo winged seeds. Collecting seeds for propagation only requires removing the fruits and, after about a fortnight, the fruits will open and release the seeds.
The shape and appearance of the fruit is one of the characteristics used for species identification.
Some eastern Australian hakeas aresuitable for cultivation in local gardens.
Hakea eriantha is a tall shrub that will reach a height of four to five metres. The flowers are white and held in clusters at the base of the leaves.Flowering occurs in spring when branches become covered in flowers.
Large clumps of woody fruits follow the flowers. They have a smooth surface crowned with a short beak.
In our garden, yellow-tailed black cockatoos break open the fruits and extract the seeds. They favour this species in preference to the other hakeas we have growing.
Hakea eriantha is common in bushland to the east of Armidale.
Hakea nodosa is a dense shrub reaching a maximum height of three metres.Flowers are bright yellow and cover the branches between May and August.
This is a very attractive hakea. This species is common in Tasmania.
Hakea macrorhyncha and Hakea ochroptera are both tall shrubs with narrow leaves.
Horticulturally, these hakeas are almost identical. Botanically, there are differences in the leaf texture and the shape and appearance of the woody fruits.
In spring, all the branches are covered with masses of white flowers. In both species, blooms are both profuse and conspicious.
The woody fruitsthat follow the flowersare also attractive features. Both hakeas are considered to be rare with limited distribution.
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