April 24, 2009
Two of my favorite things about spring are watching the vines wake up and seeing the mustard in the vineyard.
Every fall we plant a cover crop in the vineyard. It is a mixture of mustard, legumes, clover and grass. This does four things for us. First, it holds the ground in place during our rainy season. We don’t want our beautiful soil eroding away! Second, it helps feed the plants. The legumes and clover actually enrich the soil with nitrogen, which in turn gives the vines much of the food they need to grow. Third, the cover crop is a terrific haven for beneficial insects such as ladybugs. It also provides a wonderful meal for the bees when it flowers – although bees have little role in the production of grapes. Did you know that grape plants self-fertilize, and don’t need the help of bees or other pollenators to set fruit? We really like the idea of natural fertilization and beneficial insects – it allows us to farm in a much more sustainable manner, with far fewer inputs to the vineyard – and that is good for the environment and good for the wine! Lastly, the mustard has beautiful flowers in the spring. Looking out over the vineyard when every row is a mass of yellow is just a stunning sight. It is the first thing I notice as I arrive every morning, and it continues to look beautiful for weeks.
As spring progresses, we eventually have to mow down our cover crop. Mowing the crop helps us deal with frost (by allowing air to move through the vineyard), and also allows the crop to return to the soil and feed the plants. We had to mow our mustard down yesterday, as there was a light frost predicted for last night, and we needed to gain that extra protection from the cold for our just waking vines.
More next time on watching the vines wake up. In the meantime, click here to see a photo essay of bud break at Troon Vineyard.

