Container Gardening: Creating Stunning Tub Displays

Why Choose Tubs?

In a low-maintenance garden, tubs are ideal. Permanent ground cover fills beds, leaving no room for annuals. Tubs provide seasonal color with minimal effort, add vertical interest, and allow easy soil replacement, feeding, and watering. They do require regular summer watering—daily in hot weather, especially under eaves or tree canopies where rain doesn’t reach. Even in winter, sheltered tubs need weekly watering. Many bay trees in pots die from drought, not cold.

How to Plant a Tub

Essentials: good potting compost with excellent drainage, healthy plants, and a container with drainage holes.

1. For tubs over 2 ft (60 cm) wide, add a 2–3 in (5–7.5 cm) layer of gravel, stones, or broken crocks at the base.
2. Fill with John Innes No. 3 compost (use ericaceous compost for rhododendrons, camellias, and other acid-lovers).
3. Select a tall focal plant for the center: dwarf conifer, Yucca filamentosa, cordyline, camellia, or small bay tree. Cordylines need winter protection—tie leaves in November to shield the growing point.
4. Surround with four variegated ivy plants to trail over the edges.
5. Add four grey-leafed plants like Senecio ‘Silver Dust’ for year-round elegance.

In an 18 in (45 cm) pot, the center plant should be ~10 in (25 cm) taller than companions; in a 3 ft (90 cm) tub, 2–4 ft (60–120 cm) taller.

Plant Suggestions

Evergreens (rhododendrons, camellias, bay, ivy) need year-round watering. For seasonal color, add geraniums, petunias in May, remove in December. Underplant with grape hyacinths, miniature tulips, and daffodils for spring. Pansies flower across seasons and look striking in single-color blocks.

With a central focal plant and trailing ivy established, you can mix in hostas (semi-shade), nasturtiums, oxeye daisies, Senecio cineraria (full sun), spider plants, fuchsias, lobelia, Michaelmas daisies, Tolmiea menziesii, alyssum, busy lizzies, miniature roses, feverfew, asparagus ferns, tobacco plants, campanulas, Alchemilla mollis, and Helichrysum petiolatum. A few well-chosen colors often impress more than a riot.

Ivy: Propagation and Management

Variegated ivy softens container edges and hides unsightly pots. It’s pricey but easy to propagate: cut new shoots with root nodes, root in water, then pot in moist peat. Houseplant ivy is cheaper and works outdoors. Mature ivy roots can crowd other plants—slice through the root ball with a trowel every year or two to maintain balance.

Color Schemes

Personal preference rules. A refined combo: variegated ivy, grey foliage (Helichrysum), pink trailing geranium ‘King of the Balkans’, and white campanula. An all grey-white palette with Senecio ‘Silver Dust’, white petunias, Helichrysum, and white campanulas is sophisticated. Country gardens suit vibrant mixes; urban spaces often favor restrained palettes.

Critical Care

• Water daily in summer; rain rarely penetrates container soil.
• Feed weekly with liquid fertilizer (e.g., Bio plant food) or use slow-release granules in spring.
• Soak thoroughly at least three times weekly.

Holiday Watering Solutions

Move tubs out of sun, group near water buckets for humidity. Before leaving, drench pots and mulch with moist peat, moss, or bark chips. Alternatively, ask a neighbor to water, or install a timer (Hozelock Aquameter, Garden Watertimer) that shuts off after a set period—reset daily but saves effort.