Spring Trials



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CALIFORNIA SPRING TRIALS NEWS

Cultural Tips for Warm Season Bedding Plants
  By Ken Harr, Syngenta Technical Services
(4/14/12) -- Now that we're in the first weeks of spring, warm-season crops occupy more and more square-footage in greenhouses. Begonias, Salvia, Geraniums, Zinnias, Pentas, Gazanias and many other warm-season crops share a requirement for warmer soil temperatures to produce healthy root systems. Keeping the soil temperature at a near constant 67°F average daily temperature ("ADT") will help ensure adequate water and nutrient uptake.

As the season progresses, more frequent irrigations can cause nutrient or pH imbalances that result in deficiencies or toxicities. A grower should be monitoring the soil pH and EC on a weekly basis to ensure that optimal levels are maintained for each specific crop. Geraniums, Pentas and Marigolds require a pH of 6.2 - 6.5. If the pH drops below these levels, iron-manganese toxicity could occur. Likewise, if the pH rises above 6.0, Vinca, a very popular warm-season crop, could suffer from iron deficiency and be more susceptible to diseases such as Thelaviopsis.

LINKS:
Week 15: Cultural Tips for Warm Season Bedding Plants


Tiara® Mickey Series by Cohen Propagation Nurseries

From COHEN Propagation @ Pacific Plug & Liner, Spring Trials 2016: the Tiara Mickey™ Verbena 'Rose White' featuring clusters of rose-white flowers with green centers, prolifically covering masses of dark green velvety foliage.

Tiara® Mickey Verbena Rose White Tiara® Mickey Verbena Blue Lavender Tiara® Mickey Verbena Blue Lavender Tiara® Mickey Verbena Blue Lavender