Petunia Sophistica Blackberry Seeds

Petunia Sophistica Blackberry Seeds produce deep, velvety flowers with black and reddish-purple tones. Their unusual colouring adds drama to sunny containers, baskets and garden beds.

Grow Guide: How to grow Petunia Sophistica Blackberry from seed in South Africa.

Quick Grow Facts

• Plant Type: F1 grandiflora petunia, grown as a frost-tender annual
• Scientific Name: Petunia × hybrida
• Seed Form: Pelleted seed; sow one pellet per cell
• South African Sowing Time: Start protected trays about 8–10 weeks before safe planting-out weather; use the regional guide for local timing
• Position: Full sun; light afternoon relief only during severe heat
• Sow Method: Surface-sow on pre-moistened fine mix, press into contact and do not cover; bright light supports home germination
• Pretreatment: None; mist thoroughly so the pellet coating softens
• Germination: Usually 7–10 days at 22–25°C; allow up to 14 days if home temperatures fluctuate
• Spacing: 25–36 cm
• Growth Form: Mounded
• Height: 25–38 cm
• Spread: 25–30 cm
• Flowering: Usually about 10–14 weeks from sowing in well-managed home conditions
• Current Packet Options: 10 pelleted seed, 250 pelleted seed

Why Grow This Variety

• Dark shimmering petals create a dramatic display.
• Reddish-purple undertones add depth to the colour.
• Cooler conditions may produce yellow breaks.
• Compact growth suits containers and garden beds.

Garden Uses

Use Sophistica Blackberry in full-sun containers, hanging baskets or borders where its dark flowers can contrast with pale foliage and brighter blooms.

Growing Notes

• Use clean, fine, freely drained seedling mix. Surface-sow and mist the pellet until its coating softens; never bury it.
• Keep the surface evenly moist and humid only until emergence, then provide bright light and airflow.
• Move seedlings at about three true leaves and harden them gradually for 7–10 days before planting outside.
• Plant at the exact spacing above in fertile, freely drained soil and water at the root.
• Water at the root; Lime Bicolor flower colour can shift naturally with temperature and light.

Brought to you by Ubuntuberg Seeds, where our mission is to cultivate humanity & harvest unity. Ubuntuberg Seeds: the highest quality seed stock in all of Southern Africa, sourced from sustainable farms, guaranteeing you the best quality seed stock.