Sunflowers range from eighteen foot (5.5 m) stalks to a knee-high cluster of pom-poms. Besides the size and appearance, there are a few other considerations:  The classic, yellow, single-stem sunflower usually grow quickly and easily. Sunrich and Pro Cut are good beginner options.  Branching varieties produce many flowers per seed, but most grow more slowly. If you plan to cut the flowers, get a pollen-free or low-pollen variety such as Cherry Rose to avoid a sticky mess.  Larger varieties such as Mammoth Gray Stripe and Humongous tend to produce tastier seeds, and can provide support for climbing plants. (Some smaller varieties produce birdseed-quality seeds.) Sunflowers grow best in loamy soil with good drainage and neutral pH. More importantly, make sure the area gets at least six hours of full sun a day, and preferably eight or more. If the soil is poor, mix in 3 or 4 inches (7.5–10cm) of compost into the topsoil. The further apart you space the seeds, the larger their flowers will grow:  Plant the seeds 6 inches (15 cm) apart for smaller, bouquet-sized flowers, or 9" (23) cm + for larger blooms.  If your sunflower's max height is above 5 ft (1.5m), plant them at least 1 ft (0.3m) apart. Giant varieties may need 2 ft (0.6m) of space.  Most branching varieties need 18" (46 cm) of space.
اختر نوعًا من عباد الشمس. اختر منطقة تتصف بتربة جيدة الصرف وشمس كاملة. اترك مسافة بين البذور وفقًا لحجم الزهرة المرغوبة.