Thompson & Morgan Petunia Rainbow Mix - 750 Seeds

Not Available Thompson & Morgan Petunia Rainbow Mix - 750 Seeds

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Grow a rainbow of trumpet blooms and brighten your summer garden! Easy to grow Petunia 'Rainbow Mi...

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This guide is for anyone looking to cultivate a vibrant and colourful garden with the Thompson & Morgan Petunia Rainbow Mix. These easy-to-grow petunias offer a stunning array of colours, perfect for hanging baskets, pots, and borders. Keep in mind that results may vary depending on growing conditions. This guide will help you understand the key features and provide tips for successful cultivation.

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Model Part Number	23839
Brand	Thompson & Morgan

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FAQs

When is the best time to sow Petunia Rainbow Mix seeds?

Sow seeds from February to April.

How much sun do these petunias need?

They need full sun, which means at least 6 hours of direct sunlight per day.

How far apart should I plant the petunias?

Plant them 30cm (12") apart.

What is the flowering period?

The flowering period is from June to October.

How do I care for the seedlings after transplanting?

Grow them on in cooler conditions until large enough to plant outdoors. Acclimatise them gradually to outdoor conditions.

How long does it take for the seeds to germinate?

Germination usually takes 10-21 days.

What kind of soil do petunias prefer?

Well-drained soil is ideal for petunias.

Do I need to deadhead the petunias?

Yes, removing faded flowers encourages more blooms.

Troubleshooting

Seeds not germinating

Ensure the soil is kept damp, the temperature is within the recommended range (21-25°C or 70-77°F), and the seeds are not buried too deeply.

Poor flowering

Make sure the plants are getting enough sunlight, are being fed regularly, and that faded flowers are being removed (deadheading).

Yellowing leaves

Check for overwatering or underwatering and adjust the watering schedule accordingly.

Pros and Cons

Pros

Diverse colour palette enhances garden aesthetics.
Simple cultivation process makes it accessible for beginners.
Long flowering period extends garden enjoyment.
Adaptable to various planting locations.
High seed count offers great value.

Cons

Results can vary based on growing conditions.
Requires full sun exposure.
May need regular watering and care to thrive.
Seeds require specific germination conditions.

Setup, Compatibility & Care

Sowing Seeds: Sow petunia seeds from February to April on the surface of a good seed compost. Lightly cover with vermiculite.
Germination: Place the seed tray in a propagator at 21-25°C (70-77°F) or inside a polythene bag. Keep the soil damp but not wet. Germination usually takes 10-21 days.
Transplanting: When seedlings are large enough, transplant them into cooler conditions.
Acclimatisation: Acclimatise plants to outdoor conditions over 7 to 10 days after the risk of frost has passed.
Planting: Transplant into well-drained soil, 30cm (12") apart, or grow in containers in full sun.

Position: Full Sun.
Watering: Keep the soil consistently moist, especially during dry periods.
Fertilizing: Feed regularly with a balanced liquid fertilizer to encourage flowering.
Deadheading: Remove faded flowers to promote continuous blooming.