Vinca

Growing in Pots, Balconies & Indoors

The grower confirms Vinca (periwinkle) grows both indoors and in containers. It is a tough, trailing evergreen ground cover that takes happily to pots, window boxes and hanging baskets, where its stems spill over the edge and it flowers over a long season in sun or shade.

Quick Details

• Container Size: A wide, shallow pot, window box or hanging basket lets the trailing stems (10-80 cm) spill over
• Indoor Suitability: Can be grown indoors; give it bright light for best flowering
• Best Spot: Very adaptable – full sun through to full shade
• Soil & Drainage: Ordinary free-draining potting mix; undemanding
• Watering in Pots: Average water – keep lightly moist; it tolerates some dryness once established

Indoors & On the Windowsill

• Grows indoors: It will grow in a bright room and trail attractively from a pot or shelf; the more light it gets, the more it flowers.
• Windowsill and basket: A bright sill or a hanging basket by a window suits its trailing stems; it is far more forgiving of shade than most flowering plants.
• Vigour: It grows fast and can get straggly – pinch and trim to keep it neat indoors.

On a Balcony or Patio

• Light & wind: On a balcony it copes with sun or shade; let it trail over the rim of a raised pot, basket or railing planter. Pots dry faster than open ground, so keep an eye on moisture.
• Contain its spread: In the ground periwinkle can be invasive – a pot or basket is a tidy way to enjoy it without letting it run.
• Practicalities: A full pot of moist soil is heavy – check the balcony can take the weight, and stand pots so drainage water runs off cleanly instead of pooling.

Choosing the Pot, Soil & Long-Term Care

• Pot & drainage: A wide, shallow pot or hanging basket with drainage holes; skip a standing water saucer to avoid root rot; terracotta breathes and dries faster, while glazed or plastic holds moisture longer.
• Potting mix: A light, aerated mix – peat or coir blended with perlite or vermiculite so roots get both moisture and air.
• Feeding: A light regular feed in the growing season keeps it lush; potted plants leach nutrients faster.
• Upkeep: Trim back hard when straggly to refresh the growth and shape; refresh the mix or pot up every couple of years.
• Safety: Periwinkle is toxic if eaten (it contains vinca alkaloids) – keep it away from children and pets indoors and on the patio.

Bloom & Flower Guide

Quick Details

• Bloom Season: Late winter into spring, with scattered flowers over a longer period in mild climates
• Time to First Bloom: Fast; established ground cover flowers freely each season
• Flower Appearance: Five-lobed, pinwheel-shaped flowers in white, pink, blue or purple, often with a darker or lighter eye and a small star at the centre
• Edibility: Not edible; periwinkle contains toxic alkaloids in all its parts and should never be eaten

Detailed Blooming Overview

Periwinkle is an evergreen trailing ground cover grown for its neat, five-lobed pinwheel flowers set against glossy foliage. The main show comes in late winter and spring, when the mat of stems is dotted with blue, purple, pink or white blooms, each with a small starred eye; in mild climates a few flowers carry on well beyond the main flush.

Flower Characteristics

• Five-lobed, pinwheel-shaped flowers in white, pink, blue or purple.
• Often with a darker or lighter centre and a small star at the throat.
• Held singly along trailing, rooting stems.

Bloom Care & Thinning

• Managing the bloom: A light shear after the main flush tidies the mat and encourages fresh flowering growth.
• Keeping it in bounds: The rooting stems spread readily, so trim edges to keep the planting where you want it.
• Pollination: Insect-pollinated; no help needed for flowering.

Bloom Health & Protection

• Handle with care: All parts are toxic if eaten, so site it away from areas used by children and pets and wash hands after pruning.