Sunflower Mix

Site Preparation & Establishment:  Sunflowers are not overly picky about soil but prefer well-draining, slightly acidic to neutral soil (pH 6.0 to 7.5).  Best results are obtained direct sowing into warm soil (50 degrees F +) in full sun (6-8+ hours), ideally 1-2" deep and 6" apart, thinning later.  For larger, wider flower heads, give them more space.  Closer spacing produces smaller heads and thinner stems  Make rows about 30" apart.  Stagger plantings over 5-6 weeks to keep enjoying continuous blooms
 
Management: Use a slow-release or low-nitrogen fertilizer.  Too much nitrogen can cause excessive leaf growth and fewer, smaller flowers.  Sunflowers are heavy feeders, so the soil needs to be nutrient-rich with organic matter or composted (aged manure).  While drought tolerant once established, keep soil moist for seedlings.  Water deeply around the root zone, 3-4" away from the stem, to encourage deep root development.  Taller varieties may need staking to prevent breaking in high winds. 

Flowering: Most varieties mature in 70-95 days.

Cutting Sunflowers for Bouquets:  

• For indoor bouquets, cut the main stem just before its flower bud has a chance to open to encourage side blooms.
• Cut stems early in the morning.  Harvesting flowers during mid-day may lead to flowers wilting.
• Strip all leaves except for those closest to the flower head.  Recut bottoms of stems at a 45 degree angle.
• Handle sunflowers gently.  The flowers should last at least a week in water at room temperature.
• Change water everyday to keep them fresh.