Thompson & Morgan Petunia Double Cascade Burgundy & Plum - 1 Seed Packet (25 Seeds)

Petunia 'Double Cascade Burgundy Plum Vein' features large, double burgundy blooms with striking p...

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The Thompson & Morgan Petunia Double Cascade Burgundy Plum Vein is an ideal choice for gardeners looking to add dramatic, large-scale floral interest to hanging baskets and containers. These plants offer a stunning visual display with double, powder-puff blooms exceeding 10cm in diameter and unique vein patterns, though they require careful temperature management during germination and protection from frost once established.

All features

Model Part Number26169
BrandThompson & Morgan

Extended Product Information

FAQs

How many seeds come in the packet?

This packet contains 25 seeds.

Can I plant these directly into the garden ground?

While possible, these petunias are best suited for containers and hanging baskets due to their cascading growth habit.

Do I need to bury the seeds deep in the soil?

No, you should sow them on the surface of the compost and only lightly cover them with vermiculite, as they require light to germinate.

When can I move my petunias outside?

You should only plant them outdoors after all risk of frost has passed in your area.

How large will the individual blooms get?

The pleated, powder-puff blooms can grow to be over 10cm in diameter.

Troubleshooting

Seeds failing to germinate

Ensure the temperature is consistently between 20-30°C and that the seeds are not buried, as they need light to sprout.

Seedlings appearing weak or leggy

Provide more light and ensure the plants are in a cool, well-ventilated area to prevent rapid, weak growth.

Flowers appearing small or dull

Check that the plant is receiving adequate sunlight and apply a petunia-formulated fertilizer to provide necessary nutrients.

Pros and Cons

Pros

  • Large, double-bloom flowers create high visual impact
  • Cascading habit is perfect for container gardening
  • Detailed germination instructions provided by the brand
  • Well-suited for both indoor and outdoor container culture

Cons

  • Requires specific temperature range (20-30°C) for successful germination
  • Sensitive to frost; cannot be planted outdoors until temperatures are stable
  • Seeds require light to germinate, making placement critical

Setup, Compatibility & Care

  1. Germination: Sow seeds on the surface of damp, free-draining compost at 20-30°C (68-86°F). Cover lightly with vermiculite rather than burying them, as seeds require light to germinate.
  2. Environment: Keep in a propagator or a sealed polythene bag. Expect sprouts within 10-21 days.
  3. Transplanting: Move seedlings into trays or 7.5cm pots once they are large enough to handle. Acclimatize them in cooler conditions for 10-15 days before final planting.
  4. Outdoor Planting: Wait until all risk of frost has passed before moving plants outdoors. Space them 30cm apart for best growth.
  5. Maintenance: Keep the soil moist but not waterlogged. Feed regularly with a petunia-specific fertilizer during the active growing season.