Early spring is the right time to replant your pot grown plants. Roses make no exception. Special varieties, like the flowering carpet, miniature roses and elegant standards ones look wonderful on a patio, adding color and interest.
Use a soil-based compost to plant roses or any other shrubs in containers as this is better than any other type of compost because it holds a supply of nutrients more easily then soilless compost and also retain moisture better. This will cut down the need for watering and fertilizing further in the season. You can also use slow-release fertilizers and water-retentive crystals so you can save some work through the year.
After planting or replanting your roses you should prune them hard to encourage plenty of new growth. After a couple of months after planting your roses you should feed them regularly with a high-potash feed to encourage a rich flowering that will keep for weeks.
Regular watering is also needed and in dry weather watering must be done once or even twice a day. If the weather is too hot and the sun too bright you should consider moving your container grown roses into a shaded place over this period.