We're offering you a 30 or 60 Mixed Summer Petunia Plants for £4.99, saving you up to 69% off Thompson and Morgan's's price of £15.99 (correct as of 23.03.2026).

Add a Burst of Colour with Mixed Summer Petunias

Petunias (Petunia spp.) are beloved annuals known for their spectacular displays of vibrant, trumpet-shaped blooms. With a choice of compact or trailing varieties, these plug plants offer a stunning range of colours including pinks, purples, reds, whites, and striking bi-colours.

Why Grow Petunias?

• Long-Lasting Colour: Enjoy continuous flowering from late spring right through the summer months.
• Versatile Planting: Perfect for window boxes, patio containers, hanging baskets, and garden borders.
• Tough & Reliable: Petunias thrive in sunny spots and withstand summer heat as well as light rain.
• Biodiversity Booster: Their nectar-rich blooms attract bees and butterflies to your garden.

How to Grow & Care for Your Petunias

• Planting Time: Pot on your plug plants as soon as they arrive. Harden off before planting outside after the last frost (typically late April to May in the UK).
• Soil Preference: Well-drained compost or garden soil; neutral to slightly acidic is ideal.
• Sun Requirements: Full sun is best for prolific flowering. Partial shade tolerated but may reduce bloom quantity.
• Watering: Water regularly—keep soil moist but not waterlogged. Allow surface to dry between waterings.
• Feeding: Apply a balanced liquid fertiliser every 2 weeks during active growth for the best flower show.
• Pest & Disease Tips: Remove faded blooms (deadheading) to encourage new flowers and maintain plant health.

Your Variety Options

• Petunia Frenzy: Upright habit with large single blooms in mixed colours—ideal for bedding schemes.
• Double Orchid: Double-flowered variety with frilled petals—adds texture to containers and baskets.
• Tidal Wave Climbing Petunia: Vigorous trailing or climbing type—perfect for cascading displays in baskets or vertical planting.

Irrigation & Maintenance Tips

• Avoid overhead watering to prevent flower spoilage—water at the base where possible.
• Potted petunias benefit from regular feeding and occasional pinching out of growing tips to encourage bushiness.
• No pruning required; simply remove spent flowers throughout the season.

Frequently Asked Questions

• When is the best time to plant petunia plug plants?
  The best time is after the last frost in spring (late April–May). Start indoors if frosts persist.
• How long do petunias flower?
  Blooms appear from late spring through summer—often into early autumn if deadheaded regularly.
• Do petunias need full sun?
  Yes—petunias thrive in full sun. They can tolerate partial shade but will produce fewer flowers.