Effects of FloraLife® Shield Ultra on Cut Rose Opening, Color Vibrancy, and Vase Life

Research Update October 2022, powered by FloraLife
Ashley Blackwell – Postharvest & QA Scientist – FloraLife

FloraLife® Shield Ultra is a postharvest dip or spray product designed to protect cut flowers from adverse conditions as they travel from farms to the end consumer. FloraLife® Shield Ultra is engineered to maintain the quality and consistency of cut flowers throughout the distribution chain. It is a concentrated product which results in less water usage, packaging, transport, and reduced waste.

In this research update, we present data collected on the vase life, degree of flower opening, and color vibrancy in 6 cut rose cultivars treated with FloraLife® Shield Ultra.

These experiments were conducted to observe the effect that FloraLife® Shield Ultra had on the vase life, flower opening, and color vibrancy of several varieties of cut roses compared to control.

Flowers were obtained from a commercial source and received at the FloraLife laboratory where they were unpacked upon arrival. Stems were processed, and the rose heads were dipped for 5 seconds in the treatment solutions listed below. Stems were placed into FloraLife Crystal Clear® (16ml/L) solutions and flower heads were allowed to dry for 24 hours post dip treatment. After drying, the vases were placed into a sealed bucket for 72 hours to create a high humidity environment around the flowers. They were then removed from the buckets and kept at 20°C, with 12 hours light/12 hours dark each day for consumer vase life analysis. Vase life data was recorded daily with color and flower opening ratings taken on vase life day 7. There were 3 replicates per treatment per experiment.


  • Control
  • Rose heads dipped in FloraLife® Shield Ultra (1mL/L)


The quality of flowers treated with FloraLife® Shield Ultra was significantly better than control flowers. On average, FloraLife® Shield Ultra increased vase life by 139%, flower opening by 32%, and color vibrancy by 106%.

*Product availability depends upon geographical region.

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