Your plants have arrived fully 'hardened off' and as 'garden ready', plants will be ready for immediate planting outside into their final positions in containers or the garden.When you plant up your containers and baskets, mix water-retaining gel granules and a slow-release fertiliser with the compost. Together they will save you time with both feeding and watering later in the season. As a general rule, allow one plant per 5cm/2in of container or basket diameter and double this number for baskets where the sides are planted.
If you are planting in your beds and borders, prepare the ground well, removing any perennial weeds. Where the soil is not already rich, dig in some well-rotted manure or compost to add nutrition and help to improve structure. For optimum flowering, either incorporate some slow-release fertiliser at this time or feed regularly through the season. Keep plants well-watered until they are established.