Petunias: How to grow
Sow petunia seeds in trays of Gro-Sure Seed & Cutting Compost in February to April under glass.
Harden off throughout May and plant out once all risk of frost has passed.
Petunias enjoy well drained soil, preferably sandy, in a sunny spot.
If planting in borders, incorporate organic matter such as Soil Conditioner first.
Plants will also thrive in pots or hanging baskets using Gro-Sure Container & Basket Compost.
Feed throughout the season with Gro-Sure All Purpose Plant Food.
Dead head regularly to encourage prolonged flowering.
Protect from slug damage using Growing Success Advanced Slug Killer if grown in pots.