Grandiflora Petunia 'Superbissima Mixed'

Petunia grandiflora

How to grow Grandiflora Petunia 'Superbissima Mixed'

  • Full Sun

  • Medium

Remove faded flowers and do not allow seed pods to form. This promotes more buds and blooms

Try to plant in a location that enjoys full sun and remember to water moderately. Keep in mind when planting that Superbissima Mixed is thought of as half hardy, so it will require protection in frosts and low temperatures.

Growing Superbissima Mixed from seed

Surface sow, and do not exclude light. Use ordinary potting compost.

Sow at a depth of approx. 0.04 inches (0.1 cm) and aim for a distance of at least 0.78 inches (2.0 cm) between Grandiflora Petunia plants. Soil temperature should be kept higher than 21°C / 70°F to ensure good germination.

By our calculations, you should look at sowing Superbissima Mixed about 77 days before your last frost date.

Transplanting Superbissima Mixed

Pot up individually, as soon as the seedlings are large enough to handle and pot on growing under protection. When larger pot up into containers and hanging baskets and gradually expose the plants to garden conditions over a period of 10 to 15 days. Do not put out until all danger of frost has past

Ensure that temperatures are mild (minimum night temperatures should be around 12°C / 54°F) and all chance of frost has passed before planting out, as Superbissima Mixed is a half hardy plant.

Harvesting Superbissima Mixed

The flowers are best enjoyed on the plant