If you want bright color without fussy care, Shrub Rose 'Easy Elegance® Yellow Submarine' is a strong choice for borders and mixed beds. Rosa 'Easy Elegance(R) Yellow Submarine' produces clusters of lemon-yellow blooms that age to softer yellow and creamy white, so you get a changing mix of shades on the same plant. Expect repeat flowering through the warm season when the plant is happy and regularly watered during dry spells.
Give it a sunny location for the best flowering (full sun is ideal). Plant in well-drained soil and keep the root zone evenly moist as it establishes; after that, water deeply when the top few inches of soil dry out. A layer of mulch helps hold moisture, moderates soil temperatures, and keeps splash-down from spreading disease. Space plants so air can move through the canopy, which helps keep foliage clean and reduces common rose problems.
At maturity it typically forms a tidy shrub about 36-48 inches tall with a spread around 24-36 inches, making it easy to fit into foundation plantings, along fences, or as a small flowering hedge. Use it as a single highlight near an entry or repeat several plants in a drift for a stronger block of yellow. It also mixes well with blue or purple perennials and ornamental grasses for contrast, and it looks especially good when planted in groups with other shrubs and summer-flowering perennials.
For routine care, prune in early spring as new growth begins: remove dead or damaged wood and lightly shape to encourage vigorous new canes. Deadheading will usually speed up additional bloom cycles, but you can also leave some spent flowers to develop hips later in the season. Feed with a balanced rose fertilizer according to label directions, and avoid heavy late-season nitrogen so the plant can harden off before winter. In colder areas, winter mulch can add extra protection.