Carthamus Grenade Orange Seed

Grow rounded orange safflower heads on strong, uniform stems for fresh bouquets, dried arrangements or sculptural green-bud texture. Grenade Orange is a professional Carthamus tinctorius cut-flower selection with rounded, thornless leaves.

Ready to grow Grenade Orange for cutting? Follow our step-by-step Carthamus Grow Guide for Grenade Orange for sowing, germination, spacing, support and harvest advice for South African gardens.

Quick Grow Facts

• Plant Type: Upright annual cut flower
• Scientific Name: Carthamus tinctorius
• Selection: Grenade Orange
• Seed Form: Treated seed
• Pack Sizes: 20 and 1000 treated seed; live availability varies
• South African Sowing Time: Spring to early summer after damaging frost; establish before extreme heat in hot-dry districts
• Position: Full sun; light afternoon protection can help in exceptionally hot sites
• Sow Depth and Light: Sow 1 mm deep and cover lightly; germination light is not required
• Medium and Moisture: Fine, free-draining mix or a loose prepared row; keep evenly moist and aerated through emergence
• Germination: About 10–14 days at approximately 20–22°C
• Pretreatment: None; do not soak, scarify, chill or rinse treated seed
• Preferred Method: Direct sow; if trays are necessary, use deep cells and transplant young plugs at four to five weeks before roots circle
• Spacing: Packet range 15–23 cm; use about 15 cm in a supported cut row or 20–23 cm for more airflow
• Growth Form: Upright stems of uniform length with rounded buds and thornless rounded leaves
• Height and Width: Approximately 81–102 cm high and 20–25 cm wide
• Support and Pinching: Support exposed rows; do not pinch routinely unless deliberately trialling a professional branched-spray programme
• Crop Time: Approximately 10–16 weeks from direct sowing to harvest in suitable conditions
• Harvest: Cut after orange colour shows for fresh use, at firm green bud for texture, or fully open for orange dried flowers
• Safety: Ornamental use only. Do not eat treated seed or plant material; keep seed away from children, pets, wildlife and food.

Why Grow Grenade Orange

• Rounded orange heads add warm colour and texture to mixed bouquets.
• Thornless rounded leaves make stems easier to handle than spiny safflower types.
• Strong upright stems can be used fresh, dried or cut while buds are green.
• The compact width suits planned cut rows and small succession sowings.

Growing Notes

• Direct sow into full sun and free-draining soil for the best taproot establishment.
• Keep young plants evenly moist, then water deeply and less often once established.
• Avoid heavy nitrogen feeding, waterlogging and overcrowding.
• Install horizontal netting before stems elongate in windy or exposed gardens.
• In humid regions, use the wider spacing, water at soil level and protect foliage from remaining wet overnight.

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