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Sun Flower - Black Hungarian

SKU: SF52008A
CA$3.90
CA$3.90
Unavailable
per item

Approximately 25 seeds per gram.

Helianthus annuus

LOT#SF52002

The Black Hungarian Sunflower produces mostly single flowers. The plant grows between 1.5-2.1m (5-7′) tall. Flowers can achieve 8-12” across with bright yellow petals and bronze brown centers. The flower heads are surprisingly heavy, laden with large, black seeds. Seeds can be used for fresh sprouts since they’re huge. Black seeded sunflower seeds are a popular protein-rich food, and are very popular with the birds. 

Planting Instructions
  • Sow under glass March-April and outdoors April-June after your last frost for flowers July-September.
  • Direct sow seeds in mid-April to late May. Select a well-drained location that receives lots of sunlight and sow seeds after your last frost.   Starting seeds indoors is possible, but does not gain much time.  Better to directly sow seeds in a final location to allow for better root development. Sow seeds 5mm-1cm (¼-½”) deep, space dwarf varieties at least 15cm (6″) apart and the larger varieties at least .6m - 1m (2-3’) feet apart.  Warmer soils will promote faster germination.  The optimal soil temperature for germination should be around: 21-30°C (70-85°F). Seeds should sprout in 10-21 days. Keep soil moist, but not soggy while awaiting germination. Moderate watering will suffice once seedlings break through the soil. Select a well-drained location that receives lots of sunlight after the last frost to transplant from pots.
  • Soil Conditions:  Well worked rich, loose well-drained soil. Soil PH: 5.5-7.0, Ideal 6.3-6.5
  • Planting Depth:   Sow seeds 5mm-1cm (¼-½”) deep.
  • Germination:  10-21 days.
  • Height at Maturity:  1.5-2.1m (5-7′) tall.
  • Days to Maturity:   70-85 days.  When the back of the flower head turns a ruddy yellow to brown, it is ready to be cut from the plant.
  • Watering: Keep watering schedule consistent throughout the season.  The average sunflower uses 3-4mm (0.15”) of water daily during active growth. Sunflowers are drought tolerant, but grow better if you provide them with regular water, especially 20 days before they flower and 20 days after they flower.
  • Sun/Shade:  Full Sun   
  • Spacing after Thinning:  Space dwarf varieties 15cm (6″) apart.  Giant varieties 1m (3′) apart.
Additional Information
The Black Hungarian Sunflower produces mostly single flowers.  The plant grows between 1.5-2.1m (5-7′) tall.  Flowers can achieve 8-12” across with bright yellow petals and bronze brown centers.  The flower heads are surprisingly heavy, laden with large, black seeds. Seeds can be used for fresh sprouts since they’re huge. Black seeded sunflower seeds are a popular protein-rich food, and are very popular with the birds.