Calibrachoa

Use calibrachoa at the outward edge of a sunny window box, raised planter, retaining wall, or hanging basket, where its stems can spill without narrowing a path or covering neighboring plants. In a mixed container, reserve the front rim for it and place taller, more upright plants behind or toward the center. Hanging baskets positioned above eye level suit an all-trailing planting especially well, while lower baskets can combine it with plants of similar sun and moisture needs.^[1][2]

Set plants 12 inches apart, center to center, for a continuous planting that fills in quickly. Each plant may spread about 18 inches, so plan for neighboring crowns and trailing stems to overlap rather than remain as separate mounds. Along a bed edge, keep the planting line at least several inches back from paving so the seasonal spill does not crowd walking space. In containers, allow the trailing side to remain open rather than packing it against a tall or dense companion.

Give calibrachoa full sun and a moist, well-drained growing medium. It is especially practical in containers with dependable drainage, but pots and baskets dry faster than in-ground beds and need regular checks during warm weather. Water thoroughly when needed, then let excess water escape rather than leaving the root zone saturated. Use a container mix that drains freely while still holding enough moisture between waterings.^[2][3]

This annual occupies its space from late spring through fall, with a long flowering season that makes it useful for a stable edge or container role. Leave enough open rim and vertical clearance for trailing growth to develop as the season advances. If the planting begins to look loose or stretched, light pinching can restore a more compact outline. Remove and rework the planting after the growing season ends.^[1][2]