Q.When to plant rose seeds?
What is the best month or season to plant rose seeds? I live in South Australia.
You will want to let the rose seeds go through at least 2 to 3 months of cold. Such as placing them in the refrigerator for a while. Then plant them in some seed starting soil to get them to growing. Once they come up you can tell fairly quickly which ones are too weak and will not take off. Cull those out and concentrate on the more hardy ones. Once they start growing well and have several leaves you can move them to medium sized pots. After they have produced some buds and blooms, it is likely time to move them out to the rose bed or garden. Or perhaps just to a larger pot to enjoy them. Here is a link to an article for you too:
https://www.gardeningknowhow.com/ornamental/flowers/roses/growing-roses-from-seed.htm
Stan The Rose Man
Consulting Rosarian
Gardening Know How