Paul's scarlet roses are hardy climbers with thick, deep green foliage and large clusters of eye-catching red blooms. The blooms appear from spring through summer and are lightly scented. Like other roses, Paul's scarlet roses do best when planted in a location that receives full sun most of the day. They should be provided with a strong climbing structure, such a trellis or arbor, at the time of planting. They grow quickly and are hardy in U.S. Department of Agriculture Zones 6b and above.
Clear the selected site of all large rocks and vegetation. Place a trellis or other climbing structure into the ground 4 to 6 inches behind the spot where the rose will be planted.
Dig a hole 12 inches deep and 18 inches wide. Combine 3 to 4 inches of organic compost with the loosened soil.
Plant the rose at the depth it was growing previously. Water until the soil is very moist. Add a 2- to 3-inch layer of wood chips around the rose.
Water whenever the top 2 to 3 inches of soil are dry. Water in the morning so that moisture will not remain on the leaves for too long, as this can encourage the development of fungal disease.
Attach the canes to the support structure with plant ties when they begin to grow. Tie the canes loosely to prevent damage to the plant.
Feed with a balanced fertiliser, at the rate instructed on the package, in early spring and again after blooming is complete. Always water just before feeding the rose. Don't fertilise after mid-August so that the plant can prepare for winter dormancy.
Remove dead and damaged canes before new growth begins in spring.
Prune lightly after flowering to control the size of the rose.
Treat promptly with fungicide if you notice any signs of disease such as spotted foliage, discolouration or dropped leaves
Paul's scarlet roses will also climb permanent structures, such as a porch or fence.