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Highlights

Vivid Summer Colour – Over 20 petunia varieties create a bold, multi-hued display from late spring through summer.
Easy-Care Annuals – Simple to grow and maintain; ideal for both beginners and experienced gardeners.
Long-Lasting Blooms – Flowers persist all summer, ensuring lasting impact in beds, borders, and hanging baskets.
Supplied as Plug Plants – Delivered ready to pot on and establish before planting out after frost.
Versatile Planting – Perfect for containers, window boxes, garden beds, and mixed displays.
Great Value Pack – Up to 42 plug plants offer exceptional coverage for vibrant garden displays.

We're offering you a Upto 42 Mixed Petunia 'Frenzy' Plants for £4.49, saving you up to 44% off Thompson and Morgan's's price of £7.99 (correct as of 04.03.2026).

Add a Burst of Colour with Petunia 'Frenzy Mixed' F1 Hybrid

Transform your outdoor spaces with Petunia 'Frenzy Mixed' F1 Hybrid, a top choice for gardeners seeking vibrant, easy-care annuals. This premium mix features over 20 petunia varieties, each selected for strong growth and a dazzling array of colours. Expect blooms in shades of pink, purple, white, red, and more—perfect for creating eye-catching beds, borders, baskets, or containers.

Bedding Annual: Petunias (Petunia × hybrida) are classic summer bedding plants known for their prolific flowering habit.
Flowering Period: Enjoy abundant blooms from late spring until the first autumn frosts.
Mature Size: Typically reaches 25–30cm (10–12") in height with a spreading habit—ideal for mass planting or trailing over edges.
Plug Plants Supplied: Receive healthy young plugs—pot them on indoors or in a greenhouse until well-rooted before planting outside.

How to Grow & Care for Petunia 'Frenzy Mixed'

Sowing & Planting: Pot up plug plants upon arrival. Harden off and plant outdoors after the last frost date in your area (usually late May in the UK).
Location: Choose a sunny spot—petunias thrive in full sun but will tolerate partial shade.
Soil: Prefers well-drained, fertile soil. Add compost or organic matter to improve soil structure and nutrition.
Watering: Keep soil consistently moist but not waterlogged. Water regularly during dry spells.
Feeding: Apply a balanced liquid fertiliser every 2–3 weeks to promote vigorous growth and continuous flowering.
Pest & Disease Tips: Watch for aphids and slugs; remove spent flowers to encourage new blooms.

Design Ideas & Companion Planting

Baskets & Containers: Mix with trailing lobelia or alyssum for contrasting textures and colours.
Borders & Beds: Combine with marigolds or salvias for long-lasting summer displays.
Cottage Gardens: Use alongside geraniums and cosmos for a classic, informal look.

FAQs

When is the best time to plant Petunia 'Frenzy Mixed'?
The best time is after the last frost, typically from late May onwards in most UK regions.
How long do the petunias flower?
This variety blooms continuously from late spring through early autumn if deadheaded regularly.
Do I need to pinch out or prune these plants?
You can pinch out young shoots to encourage bushier growth; remove faded flowers to prolong blooming.