The provision of favourable germination and establishment conditions are essential to the success of any overseeding operation. Seeds will differ in terms of the amount of light, moisture and temperature required which will therefore determine the time and the method in which it should be delivered. The Redexim range of overseeders from Charterhouse Turf Machinery encapsulate a variety of working widths, hopper capacities and delivery methods – all of which are fully adjustable for any required seed density.

First to consider is the Redexim Speedseed.  This range delivers the seed into dimples relatively close to the surface, created by a spiked sarel roller, and is ideal for fine turf, where drill lines need to be avoided.  An optional second roller can be fitted to increase the number of holes created from 940 per m² with one roller up to 1840 per m². With working widths ranging from 1.2m up to 2.4m with the 2400 model, the Speedseed machines are ideal to overseed large areas quickly.

For improved seed to soil contact, or in situations where high germination rates are the priority, it could be worth considering disc seeders. These will open up the turf and accurately deposit the seed into the furrow created, therefore increasing the delivery efficiency.  Charterhouse have a number of options in their range of disc overseeders – a popular choice with golf clubs is the Redexim Verti-Seed.  Available in two working widths, the Verti-Seed features a floating top link which can take undulations in its stride and it can be precisely adjusted to deliver exact rates, even for very fine seeds like bents and fescues.

Also in the range is the Redexim Overseeder, available in 3 working widths up to 2.08m. The discs are spaced at 75mm and can cover the ground at up to 7.5mph. The latest addition to the seeder range is the Redexim Double Disc Overseeders which were launched at BTME 2014.  The range contains 3 machines, the 1430, 1830 and 2230, offering working widths of 1.4m, 1.83m and 2.2m respectively. The concept of this range is to deliver the seed into the soil via two rows of discs, spaced at 30mm, 20mm into ground where they’re safely away from the weather and beaks of hungry birds.