- 10x Rare Dark Blue Rose Seeds - Same Day Shipping with Tracked Delivery by Laposte - National Delivery Time: 1 to 3 Business Days - International Delivery Time: 2 to 6 Business Days - When to Sow Rose Seeds? Rose seeds are sown in spring, starting in March, under cover. For germination, the seeds require temperatures between 15°C and 20°C and at least 6 hours of sunlight per day.
eBay