Phlox Popstars Mix Seeds

Grow a compact display of single and bicoloured star-shaped annual phlox flowers in sunny beds, borders and patio containers. Phlox Popstars Mix is raw-seed F1 Phlox drummondii with strong branching and improved garden performance.

Ready to bring star-shaped phlox blooms to your garden? Follow our step-by-step Phlox Grow Guide for Popstars Mix for covered sowing, germination, transplanting, regional timing and ongoing care.

Quick Grow Facts

• Plant Type: F1 hybrid annual
• Scientific Name: Phlox drummondii
• Series: Popstars F1 Mix
• Seed Form: Raw seed
• Pack Sizes: 10 and 250 raw seed; live stock varies
• Storage: Keep sealed, cool and dry; warm a cold packet to room temperature before opening and follow any lot-specific use-by date
• South African Sowing Time: Autumn in mild, frost-free districts; protected late-winter sowing for frost-prone interiors
• Position: Full sun in cool weather; light afternoon protection where heat is severe
• Sow Depth and Light: Cover about 3 mm with vermiculite or fine mix; light is not required during germination
• Germination: Breeder benchmark 3–5 days at 20–22°C; allow the packet’s 14–21-day home-tray window
• Medium and Moisture: Fine, clean, low-salt, free-draining mix; keep evenly moist and aerated, never saturated
• Pretreatment: None; do not soak or chill
• Method: Tray sowing is recommended; direct sow only in cool, frost-free, weed-free soil where moisture can be controlled
• Transplanting: Move a sturdy root-held plug after about 4–5 weeks and harden gradually for 5–7 days
• Spacing: Packet spacing 20 × 20 cm; allow 25–30 cm in humid gardens or where plants spread strongly
• Growth Form: Compact, strongly branched clump
• Height and Spread: About 25–30 cm high and 25–40 cm wide
• Support and Pinching: No support or pinching needed
• Flowering: Begin checking from about 70 days; allow 70–90 days from sowing under suitable conditions
• Use and Safety: Ornamental display; do not eat packet seed or flowers

Why Grow This Variety

• Single and bicoloured star-shaped flowers create a distinctive display.
• Strong branching gives compact plants good flower coverage.
• Improved heat tolerance helps flowers continue longer into warming weather.
• The low growth form suits pots, border edges and smaller beds.

Garden Uses

Use Popstars in a sunny patio pot, border edge or massed bed where its patterned star-shaped blooms can be seen closely. Choose a container with drainage holes and avoid crowding in humid weather.

Growing Notes

• Sow one raw seed per cell, cover 3 mm and keep at 20–22°C; germination light is not required.
• Move seedlings into bright light immediately after emergence and grow on near 16–18°C.
• Keep moisture even without severe wilting or saturation; annual phlox is sensitive to high salts.
• Transplant before plugs become root-bound and handle the root ball gently.
• Water at soil level, maintain airflow and watch flowers for thrips and foliage for powdery mildew.

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.