Ok, I lied, I read to quickly. It actually looks like you need very little to import small lots of seeds as an individual.
1. An Import Permit is not required.
2. Genetically Modified seeds must be accompanied by a copy of a valid Import Permit. All applications must be forwarded to DAFF Plant Programs, Canberra along with detailed information regarding the mode of genetic modification and the Office of the Gene Technology Regulator (OGTR) registration number.
3. It is the importer’s responsibility to check state and local government requirements to ensure that the seed is permitted entry into that state/territory.
4. For commercial consignments of seed, the importer must contact the DAFF regional office in the port of entry to confirm all arrangements for inspections and treatments.
5. The importer is responsible for payment of all associated DAFF fees and charges.
6. Seed must be free of live insects, soil, disease symptoms, prohibited seeds, other plant material (e.g. leaf, stem material, fruit pulp, pod material, etc.), animal material (e.g. animal faeces, feathers, etc.) and any other extraneous contamination of quarantine concern.
7. All consignments imported into Australia for all end uses must meet the DAFF standards for seed contaminants and tolerances. There is a nil tolerance for prohibited seeds.
8. Each shipment must be packed in clean, new packaging, clearly labelled with the full botanical name (i.e. genus and species).
9. Packets of seed containing mixed genera or species are not permitted entry due to difficulties in inspecting them for contaminants. However, where the Quarantine Officer is able to determine that the packet(s) of seed consists of blends or mixes of traits (such as colour or size) of the same species then the seed may be permitted entry provided that all other conditions of import are met.
Note: Importers wishing to import packets of seed containing mixed genera or species must obtain prior approval from DAFF. All applications must be forwarded to DAFF Plant Programs, Canberra.
10. Pelleted seed of permissible flower, vegetable, herb and pasture/forage seeds may be permitted entry provided that the pelleted seed was commercially produced and packaged and pelleting was carried out using inert material only. See the Pelleted Seed conditions below for further details on requirements and conditions of entry.