Tag Archives: Frost

It’s Time to put Row Covers on Your Lavender

Ontario lavender growers should consider putting on row covers over lavender in the next two weeks. Row covers should be put on when lavender plants are mostly dormant, which usually occurs once night temperatures average below freezing. They definitely need … Continue reading

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Ginseng Crop Update – June 17, 2016

Over the past few weeks we noticed that our 2nd year research garden has a lot of missing plants and what looks like new seedlings emerging. However, when these seedlings were dug up, the roots were those of 2-year old … Continue reading

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Ginseng Crop Update – June 3, 2016

There have been multiple reports over the past week of random plants wilting especially in 2-yr old gardens (Figure 1). These plants emerged relatively healthy and are now completely collapsing. The roots are shrivelled but with no signs of disease … Continue reading

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Ginseng Crop Update – May 19, 2016

In most areas frost did not occur over the weekend. However, the cold weather itself may cause some minor damage to ginseng. In general, the stems will still be intact, but the leaves may be distorted or the tops may … Continue reading

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Notes on Lavender and Frost

With frost potentially in the forecast this weekend, here are some thoughts on ways to protect lavender to avoid a repeat of last year. Refer to the THIS ARTICLE for a discussion of the available weather forecasts and their reliability. … Continue reading

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Forecasting Frost Events – Comparison of Weather Forecast Sites

Frost events have been increasing in recent years and growers of a wide range of crops have been implementing different frost mitigation measures to protect their crops. For some frost mitigation strategies, reliable forecasts beyond the same day are not … Continue reading

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Row Covers for Ginseng and Lavender – Notes on Forecasting Frost Events

Both ginseng and lavender growers have invested in large amounts of row cover to protect plants from cold temperatures (Figure 1). Ginseng growers will use row covers when frost events are forecast. Lavender growers use row covers for winter protection, … Continue reading

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