This trailing summer favourite produces an abundance of velvety blue-purple trumpet-shaped flowers that cascade beautifully from baskets, containers, and window boxes. Petunia ‘Surfinia Blue’ is a vigorous and reliable flowering variety, prized for its long-lasting colour and weather tolerance. Blooming continuously from late spring until the first frosts, it creates a lush waterfall of rich colour that instantly brightens patios, balconies, and outdoor spaces.
Petunia ‘Surfinia Blue’, commonly known as Trailing Petunia or Surfinia Petunia, is loved for its fast-growing habit and exceptional flowering performance. The deep blue blooms contrast beautifully against fresh green foliage and blend effortlessly with both vibrant and softer planting schemes. Perfect for hanging baskets and mixed summer containers, this self-cleaning variety keeps looking fresh with very little maintenance throughout the season.
Tender Perennial
Trailing, Basket Plant, Long Flowering
Flowers: Late Spring to First Frosts
Foliage: Spring to Autumn
Scientific Name
Petunia ‘Surfinia Blue’
Synonyms
Part of the Surfinia® series of trailing petunias
Common Name
Trailing Petunia, Surfinia Petunia
Origin
Cultivated hybrid developed from South American Petunia species
Pruning Tips
Lightly trim stems back during midsummer if growth becomes leggy or flowering slows. This helps encourage bushier growth and fresh blooms.
Wildlife Value
The nectar-rich flowers can attract bees and other pollinating insects throughout summer.
Positioning
Best grown in full sun in hanging baskets, patio pots, window boxes, and raised containers. Prefers a warm, sheltered spot for the strongest flowering display.
Water
Water regularly during warm weather, particularly in hanging baskets and containers where compost dries quickly. Keep soil evenly moist but avoid waterlogging.
Soil
Prefers fertile, well-draining compost rich in organic matter. A quality peat-free basket or container compost works well.
Food
Feed every 1–2 weeks with a high-potash liquid fertiliser during the growing season to support continuous flowering.
Pet-safe
Generally considered non-toxic to pets, although eating large amounts may still cause mild stomach upset.
Sprouts Top Tips
The rich blue tones look especially striking paired with white, silver, or lime-green trailing plants for a classic summer basket display.
