Helianthus annuus 'Pro Cut White Nite' is a professional, pollenless cut-flower variety that is used by florists all over the world. The cream petals mature to white and contrast beautifully with the dark brown centre. The blooms grow to around 10 to 15cm (4 to 6in) in diameter and the plants reach around 150cm (6ft) in height. The plants are uniform and vigorous in growth even under low temperatures and short day conditions, and the blooms are early and reliable. Sunflower 'White Nite' flowers are completely pollenless, they are perfect for hay fever sufferers and the single stemmed plants have tall strong stems which make excellent cut flowers. 60 to 65 days to maturity. Cut the flowers when the petals begin to unfurl from the face. Pollenless Sunflowers: Sunflowers are a hot item, originally considered to be a bit of a fad by florists. The fad never passed, in response to the call by florists and home growers, breeders produced innumerable varieties and developed a number of premium varieties that are fabulous as a cut flower, and most importantly are pollenless. A regular cut-flower sunflower is beautiful when cut, but as the disc flowers in the centre mature, they drop pollen all over the consumer’s table, followed shortly, by the petals of the flower. A pollenless variety has sterile disc flowers, so it can produce neither pollen nor seed. Since it doesn’t produce pollen, it never decides that its natural function (seed production) has been fulfilled, and it lasts for two full weeks in the vase. The leaves will yellow and have to be removed, but the flower remains attractive for much longer.