Black Sunflower Microgreen Seeds

Australian Grown Black Sunflower Microgreen Seeds

Botanical Name: Helianthus annuus

• Australian grown black sunflower seeds selected for reliable microgreen production
• Nutty flavour with thick crisp stems and broad green leaves
• Excellent for home growers, cafés, market growers, and commercial microgreen production

These Australian Grown Black Sunflower Seeds are specially selected for producing strong, healthy sunflower microgreens with excellent flavour and reliable germination. Sunflower shoots are one of the most popular microgreens thanks to their delicious nutty taste, crunchy stems, and high nutritional value.

Perfect for salads, wraps, sandwiches, smoothies, and fresh garnishes, sunflower microgreens are fast-growing, highly productive, and easy to sell for both home and commercial growers. With the right growing conditions, they produce thick stems, broad leaves, and strong uniform crops with excellent shelf life after harvest.

Yield & Cost Per Tray

Serious microgreen growers often calculate sunflower seeds by cost per tray rather than cost per kilogram.

• Recommended seed rate: 200–250g per standard tray (30 x 35 cm)
• 5kg pack: grows approximately 20–25 trays
• Average seed cost: only $2.00–$2.50 per tray

This makes black sunflower one of the best-value microgreens for commercial growers, cafés, and market production.

Nutritional Content

Sunflower microgreens are not only tasty—they are also packed with valuable nutrients.

• Protein: Approximately 20–25%
• Vitamins: A, B group, C, D, and E
• Minerals: Calcium, iron, magnesium, and essential amino acids

How to Grow at Home

Sunflower shoots can be slightly more challenging than smaller microgreens because they require good airflow and careful moisture control to reduce mould risk. Once the process is understood, they are one of the most rewarding and productive microgreens to grow.

Difficulty

Moderate. Good hygiene, spacing, and airflow are essential. New growers should start with a small batch first.

Growing Medium

Use soil or coir peat for best results. Hydroponic growing is not ideal due to mould risk and weaker root support.

Soaking Instructions

Soak 1 to 1½ cups of seeds (for a standard 30 x 35 cm tray) in cool water for 8–12 hours. Use a plate or lid to keep seeds submerged. This softens the seed hull and improves germination speed and consistency.

Pre-Sprouting

After soaking, drain well and leave the seeds to pre-sprout for 12–24 hours in a jar, tray, or breathable hemp bag. Keep them damp, not wet. This improves even growth and helps reduce mould problems.

Ideal Temperatures

Best germination occurs between 20–25°C. Growth slows in cooler weather, so a warm sunny position or heat mat can improve results during winter.

Tray Method

1. Add 2–3 cm of soil or coir peat to the tray and flatten the surface.
2. Lightly water the growing medium.
3. Spread seeds evenly without overcrowding.
4. Press seeds gently into the surface and mist lightly.

Blackout Stage

Cover the tray with another tray or lid and place it in a dark, well-ventilated area. Water lightly once or twice daily. After 4–5 days, the shoots will begin lifting the cover, which means they are ready for light exposure.

Light & Harvest

Move the tray into sunlight or under a grow light. Mist twice daily while avoiding overwatering. Harvest after 7–14 days when shoots reach 8–12 cm tall. Cut just above the soil line using clean scissors.

Tips for Success

• Clean trays and tools thoroughly between each crop
• Use a fan or grow in a well-ventilated space for strong airflow
• Avoid overcrowding seeds, which increases mould risk
• Keep trays warm, bright, and dry on the surface
• Harvest promptly for best flavour and shelf life

Why Choose Our Seeds?

• High germination rate for reliable crops
• Australian grown, tested, and packed
• Excellent for home growers, cafés, schools, and commercial microgreen growers
• Strong performer for repeat growers and bulk buyers

Need Help?

New to growing sunflower microgreens? Read our full guide covering soaking, blackout stages, mould prevention, harvesting, and growing tips for Australian conditions.

How to Grow Sunflower Microgreens

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