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Xanthorrhoea australis

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Approximately 90.00 seeds per gram
seed-counts are only a guide, not to be used for accurate calculations.

Xanthorrhoea australis
We do not know how many seeds there will be in a packet !
If we know the quantity of seeds, we list the quantity as:
examples '200 seeds' or '0.50 gram', not as packet.
1 packet for 17 Euros
available for preorder


Xanthorrhoea australis
10 gram for 18 Euros
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Xanthorrhoea australis
25 gram for 24 Euros
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Xanthorrhoea australis
5 gram for 26 Euros
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Xanthorrhoea australis
100 seeds for 42 Euros
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Xanthorrhoea australis
100 gram for 78 Euros
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Xanthorrhoea australis
1000 seeds for 244 Euros
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Xanthorrhoea australis
1000 gram for 445 Euros
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Xanthorrhoea australis



Elements of Structural and Systematic Botany
B and T World Seeds' Botanical Glossary

B and T World Seeds' reference number: 16805

The average, annual, minimum temperature zone where Xanthorrhoea australis is cold hardy
USDA Zone:10 30° to 40°F   (-1° to +4.5°C)
Type of plant - perennial
Flower or inflorescence: WHITE, in dense spike, not every year
Fruit: .....(use 33pc sand, germinate ~dryish, smoke helps)
Foliage: very long, thin - brittle... develops a trunk over many years
Height, in meters: 3
Height, in feet: 9.90
Xanthorrhoea australis sales history

Common names for Xanthorrhoea australis:

(can take 100 years to reach 2 metres),  (resin exudate collected by bees),  (some seedlings "right-handed",some "left",  Australian Grass Tree,  Grasbaum,  Southern Blackboy, 


Xanthorrhoea australis is included in the following
B and T World Seeds flowering plant categories.

15:   Australian Natives and Introduced Species
21:   Australian, New Zealand, and Introduced Palms, Cycads, etc.
31:   House and Container Plant Seed List
45:   Bee and Butterfly Attracting also Honey and Pollen Plant Seeds
65:   World Coastal Tree and Plant Seed List
134:   Tasmanian Natives Seed List
169:   Sandy Soil Plant Seed List
185:   Plant Species whose germination is improved by Smoke
"Smoke" contains a butenolide compound produced by certain plants when heated, it speeds up or starts the germination of seeds from many different genera.
191:   Tropical Shrubs and Trees
192:   Tropical Commercial Selection Trees Shrubs and Flowers
690:  Xanthorrhoeaceae


Happier and Healthier Plants, Naturally

plant-fungus communities, for improved nutrition, and disease and drought resistance.


Germination guide for Xanthorrhoea australis

These notes are a general guide, it is recommended to check specialist literature for some of the more unusual seeds in our lists.
Seed Germination Theory and Practice by Professor Norman C. Deno
Some knowledge about growing from seed is necessary to germinate even the easiest seeds. Most seeds require humidity to germinate, even desert plants like Welwitschia mirabilis require that their growing medium remains moist until germination.

Most seeds require oxygen to germinate, if buried too deep in their growing medium, or if the medium is too wet, the seeds may not get the oxygen they require.
Some seeds need to be in the light (surface sown) or in the dark (sown deep enough to receive little or no light) to germinate. A rule of thumb is to cover the seeds their own width deep in the growing medium, but some seeds prefer to be sown much deeper, and some fairly large seeds like to be surface sown (or higher).
Many seeds germinate best at certain temperatures, some will germinate at a comparatively wide range of temperatures, yet others need fluctuating temperatures.
Almost all seeds are waiting in a dormant state for some outside stimulus to break their dormancy, some just need sufficiently high ambiant humidity, others need scarification, vernalization or to be passed through the intestines of an animal.

Xanthorrhoea australis seeds will usually germinate in 30-180 days, even under good conditions germination may be erratic.
Normally will only germinate with light so surface sow. Sow Xanthorrhoea australis seeds on the surface of a Peaty seed sowing mix at about 20°C.

Sow Xanthorrhoea australis seeds on the surface of a firmly tamped down peat compost, the spores must be kept warm and damp at all times, and need daylight.


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