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XANTHORRHOEA australis
Grass Tree or Blackboy
Family: Xanthorrhoeaceae
Sub-family: Xanthorrhoeoideae
Characteristics: Perennial monocot 1.5 m
Seed per packet: Approx 15
Seed per gram: Approx. 40
Grass trees are widely recognised throughout the world as being uniquely Australian.
Typically develops a rough trunk which may be branched and often coloured black as the result of surviving many bush fires. Long narrow leaves occur on the top of the trunks.
The individual flowers are white or cream and very small, clustered together in a spear-like spike that can tower 2 metres or more above the top of the trunk.
A food source for nectar-eating birds , parrots, and butterflies when the flowers are developing.
Endemic to South Australia, Victoria and Tasmania.
Prefers a light well-drained soil in an open sunny position. Frost resistant but drought tender..
Although seed can be sown most of the year in many parts Australia seed is generally best sown in spring or autumn, avoiding the coldest and hottest months of the year.
Xanthorrhoea germinate readily from seed with no special pre-treatment.
- Sow seed on surface of a porous seed raising mix and cover to a depth of 1-2 mm. Do not bury seed deeply.
- Water with fine mist spray to avoid disturbance of the seed.
- Place in a warm shaded or semi shaded position to avoid dying out.
- Keep warm & moist, avoid drying out or waterlogging the growing mix.Germination generally occurs in around 10-60 days at 18-22°C
- Place the seed tray in a warm place in the shade.Check the seed tray regularly and add moisture if it looks like it is drying out but do not waterlogg the container.
Germination generally occurs in around 10-60 days at 18-22°C
Please note:
- Please do not be too hasty to discard seeds that do not germinate; seeds will often lay dormant until the conditions are similar to their natural germination requirements.
- As with all seeds, they must have adequate water to germinate, keep them moist but not too wet.
- These growth notes are provided as guidance only and do not guarantee successful germination.
- The customer should do their due diligence that they are suited to their region.
As a registered Export Establishment, we can provide a full export service, from obtaining a Phytosanitary certificate (if required) to delivering your parcel to the transport company of your choice. If you are uncertain about the requirements for importing seeds into your country, please contact us.
Our team can assist you if you require a quote for a specific project or a large domestic or export order or if you're looking for a particular item or need to make a bulk purchase.
One of our team members can help, please do not hesitate to contact us
Importing to Tasmania Prohibited