Grape Vine (IMAGE) American Physical Society Caption In late February a grape vine shows the first sign of production; the small bud will grow into a cluster by early summer. Photo by Jaime Tankersley/NRCS Texas Credit USDAgov via Wikimedia Commons Usage Restrictions This image may be used with appropriate credit. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.