1/12/2024 0 Comments Planting spanish broom seedsIt is found predominantly on roadsides, drains and fence lines from which it encroaches onto grazing lands. Impact Impact on ecosystems and waterwaysįlax-leaved broom has the ability to invade a broad range of vegetation including: The icons on the following table represent the times of year for flowering, seeding, germination, the dormancy period of Flax-leaved broom and also the optimum time for treatment. It is also well established in the La Trobe Valley area around Morwell and Traralgon. In Victoria, flax-leaved broom is common on the Mornington Peninsula and adjoining areas, as well as on the Bellarine Peninsula and parts of the Western District of the state. Preferred habitatįlax-leaved broom prefers warm-temperate regions with slightly acidic soils in areas with moderate rainfall. Seeds remain viable in the soil for many years.įlax-leaved broom can form dense thickets and the plant can produce seeds for 3 to 10 years. The seeds have a hard seed coat that requires heat or some form of superficial cutting, abrasion or incision to break dormancy and stimulate germination. Seedbank propagule persistenceĪ bush of flax-leaved broom contains approximately 2000 flowers which may produce over 4000 seeds per year. Rate of growth and spreadįlax-leaved broom takes about two years to reach sexual maturity. Seedlings form dense clumps and grow readily on disturbed areas such as graded roadsides. More distant spread occurs when seeds contaminate vehicles, machinery, produce, mud and soil. Growth and lifecycleįlax-leaved broom is spread by seeds that are ejected from its pods at a distance of up to 5m in summer. FruitĪ grey to black silky pod, about 2.5cm long, containing 2 or 3 greenish-brown seeds. They grow to 1.2cm long, have short stalks and occur in clusters at the ends of branchlets. Flowersįlax-leaved broom flowers are bright yellow and pea-like. They consist of three linear lance-shaped leaflets each about 2 to 3cm long that are slender with rolled edges. They are hairy on the upper surface and densely hairy beneath, giving a whitish appearance. Leavesįlax-leaved broom leaves are light green and arranged alternately on branches without stalks. The stems consist of 1 main stem at the base and many branches above. ![]() Stems are erect, brownish-green and are ridged. Plant biology Appearanceįlax-leaved broom is an erect, evergreen shrub which can grow up to 3m high. Restricted in the Mallee, North Central, Glenelg Hopkins and Goulburn Broken catchments. Regionally controlled in the Wimmera, Corangamite, West Gippsland, Port Phillip and Western Port catchments. Regionally prohibited in the North East and East Gippsland catchments. Plant status Catchment management authority boundaries Victorian Government role in invasive plant and animal management Spanish Broom usually flowers between June and August.Prescribed measures for the control of noxious weeds These make atmospheric nitrogen available to feed the plant and enrich the soil.īenefits to wildlife are also indicated with orange icons in the plant profile bar at the top. It forms dense bushes that preclude native plants and wildlife and provide fuel to support wildfires.īenefits: Spanish Broom has root nodules that host nitrogen-fixing bacteria. It has an invasive habit, growing rapidly, tolerating a wide range of conditions (including drought) and producing a large numbers of seeds. Spanish Broom exists in the wild as a garden escape. 'Spartium' identifies the plant as a Spanish Broom and its species name 'junceum' means 'Rush-like plant'.Ĭoncerns: Spanish Broom is a poisonous plant, with the toxins concentrated in the flowers and seeds. ![]() In more recent times, its use for landscape planting next to new roads has accelerated its spread to new wild areas.īotanic classification and naming: Spanish Broom is a member of the Pea (Fabaceae) family. Spanish Broom has sweetly scented flowers and was introduced into the UK as a garden plant in the sixteeenth century. ![]() Perennial plant of the UK, typically found growing in roadsides, rail tracks and coastal areas, to a mature height of up to 250cm.
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