Tag Archives: Plant Growth Regulators


PGR’s for Woody Nursery Plants

Do you need to use plant growth regulators (PGRs) in a traditional outdoor nursery? Let’s go back 10 years when the traditional plants grown in container nurseries were hollies, junipers and other hardwood plants, and the answer would probably be no. PGR use has been an increasing part of the greenhouse industry, primarily aimed at  Continue Reading »



OHP once again to participate in California Spring Trials

We are pleased to note that OHP will again be part of the upcoming California Spring Trials March 23-31, 2012. OHP will be showcasing the results of its plant growth regulators (PGR) on perennials and annuals such as lantana, geranium, petunia, calibrachoa, sedum and pennisetum (grass) at American Takii in Salinas. In addition, OHP will  Continue Reading »