- Seed stratification (optional): Some rose seeds require a period of cold stratification to break dormancy and improve germination rates. To stratify the seeds, place them in a sealable plastic bag or airtight container with a slightly moistened medium like vermiculite, sand, or peat moss. Store the container in the refrigerator for 4 to 6 weeks.
- Soil preparation: While the seeds are stratifying or if you’re not stratifying them, prepare a suitable planting mix. Use a well-draining potting mix formulated for starting seeds. You can also create your own mix by combining equal parts of peat moss, perlite, and vermiculite.
- Sowing the seeds: Fill small seed trays or pots with the prepared planting mix. Plant the rose seeds by gently pressing them into the soil, about 1/4 inch deep. Space the seeds a few inches apart to allow room for growth.
- Watering and care: After sowing the seeds, water the soil gently to provide moisture. Keep the soil consistently moist but not waterlogged. You can cover the trays or pots with a clear plastic lid or plastic wrap to create a greenhouse-like environment that retains moisture.
- Germination period: Rose seeds can take several weeks to months to germinate, so patience is key. Place the seed trays or pots in a warm location with indirect light. Maintain a temperature of around 70°F to 75°F for optimal germination.