[Solved]-Highcharts threshold background color from 100 y-axis-Highcharts

flots markings is analagous to Highchart's plot bands.

Quick example:

$('#container').highcharts({
    chart: {
        type: 'column'
    },
    yAxis: {
        plotBands: [{
            color: '#FCFFC5',
            from: 100,
            to: 300
        }]
    },
    xAxis: { 
        categories: ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec']           

    },

    series: [{
        data: [29.9, 71.5, 106.4, 129.2, 144.0, 176.0, 135.6, 148.5, 216.4, 194.1, 95.6, 54.4]
    }]
});

Fiddle here.