We're offering you a 8 or 12 Petunia 'Sky Mix' Plants for £7.99, saving you up to 33% off Thompson and Morgan's's price of £11.99 (correct as of 27.04.2026).

Add a Celestial Splash with Petunia 'Sky Mix'

Transform your outdoor space with Petunia 'Sky Mix', a stunning annual bedding plant renowned for its starry patterns and dazzling blend of purple, pink, and white blooms. These petunias belong to the Solanaceae family and are celebrated for their long-lasting floral display and ease of care.

Why Choose Petunia 'Sky Mix'?

• Spectacular Blooms: Each plant bursts with unique, speckled flowers from late spring through autumn, providing months of colour.
• Reliable Performance: Petunias are known for their robust growth and ability to thrive in the UK climate, offering consistent results season after season.
• Biodiversity Boost: Their nectar-rich flowers attract pollinators such as bees and butterflies, supporting a healthy garden ecosystem.

Growing Guide

• Planting Time: Pot on your plug plants from February to May after the risk of frost has passed.
• Sunlight: Petunias flourish in full sun but will tolerate partial shade.
• Soil: Prefers well-drained, fertile soil with a neutral to slightly acidic pH (6.0–7.0).
• Watering: Keep soil consistently moist but not waterlogged. Water at the base to avoid wetting foliage.
• Feeding: Feed fortnightly with a balanced liquid fertiliser during active growth for best results.
• Deadheading: Remove faded blooms regularly to encourage new flowers and extend the display period.

Caring for Your Petunias

• Pest & Disease: Generally trouble-free but watch for aphids and slugs; treat promptly if seen.
• Shelter: While hardy for annual bedding, provide shelter from strong winds for best performance.
• No Pruning Needed: Just deadhead spent flowers to keep plants tidy and blooming.

Ideal Uses & Companion Planting

• Baskets & Containers: Perfect trailing habit for hanging baskets or window boxes.
• Borders & Beds: Combine with lobelia, alyssum, or marigolds for a vibrant summer display.
• Cottage Gardens: Use as colourful fillers among perennials or in mixed planting schemes.

FAQs

• When is the best time to plant these petunias?
  The best time is after the last frost, typically from February to May when planting plug plants indoors or under cover before hardening off outdoors.
• How tall do Petunia 'Sky Mix' plants grow?
  Mature plants reach around 20–30cm in height with a spreading habit ideal for bedding and baskets.
• Do I need to deadhead petunias?
  Yes, regular deadheading encourages continuous flowering throughout the season and keeps plants looking their best.