Shoots that fail to produce rose blooms are known as "blind". This is not unusual in some years, despite good cultivation of the plant, and will reduce the impact of the display.
Plants affected Roses
Main causes Frost damage, poor soil fertility, shady conditions
What is rose blindness?
Flowering shoots develop normally, but fail to develop a terminal flower bud. Occasionally, a flower case may be form but be empty or dry.
Leaf and stem growth can appear perfectly healthy, with no sign of dieback.
Where rose blindness is a problem:
- Cut a blind shoot back by half to a strong bud to stimulate further growth. This should produce flowers later in the season
- Remove a proportion of older wood to encourage new growth, leading to better flowering. This is ideally done with annual pruning, often in winter
- Improve growing conditions by feeding with a proprietary rose fertiliser and mulching
- Ensure roses are grown in a sunny, open position
Susceptible: some rose cultivars are particularly prone to this problem: 'Peace' ( a large-flowered hybrid tea rose) and 'New Dawn' (climber), which often has a poor first flush (a surge in the production of flowers) of flowers.
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