Browntop Bent Grass Latin name: Agrostis capillaris syn. tenuis Seeds/gram: 10,000 Germination: 2-3 weeks Shoot density: 400-600 shoots/100cm2 Cutting height: Normal: 4-12mm; good durability at 5mm Growth: Creeping mainly short rhizomes Distinguishing features: Leaves matt green and broadest at base, gradually narrowing to a fine tip // Leaf with parallel venation, no keel // Upper surface and lower surface of similar appearance // Leaf rolled in shoot // Ligule short, truncated, 0.5-2.0mm long // Short rhizomes, to a lesser degree, stolons Properties: Ideal for golf greens in a mixture with Festuca rubra commutata and Festuca rubra litoralis. Does best under relatively poor growth conditions. Over-fertilising, overwatering and compact or waterlogged soil will result in displacement of the species by Poa annua. Creeping Bent Grass Latin name: Agrostis stolonifera Seeds/gram: 12,000 Germination: About 2 weeks Shoot density: 400-600 shoots/100cm2 Cutting height: Normal: 3-12mm Not over 15mm Growth: Creeping stolons Distinguishing features: Leaves matt grey-green and broadest at base, gradually narrowing to fine tip // Leaf with ribs above // Leaf rolled in shoot // Ligule rounded, lightly toothed, up to 5 mm long // Can root at nodes // Numerous stolons Properties: High tolerance to close cutting. Relative to browntop bent grass, requires intensive management, fertilising and watering. Tends to become dormant in winter. Key Cultivars ARROWTOWN No. 1 Rating The Johnsons seed range already offered the strongest bentgrass portfolio in the UK but Arrowtown is a cultivar set to re-write the rule book. Arrowtown was bred from exceptionally fine and dense plants collected from greens at Arrowtown Golf Club in NZ. The really exceptional level of shoot density and fineness of leaf even at the closest of cuts deliver maximum ball speed and trueness potential. MANOR This New Zealand bred cultivar has exceptional shoot density and a high tolerance to close mown wear, helping to prevent the spread of Poa annua. Manor also has excellent tolerance to fusarium. An ideal alternative to a fescue for inland courses wishing to reduce Poa annua and improve green speed. Key Cultivars COBRA NOVA No. 1 rating Quite simply the highest rated creeping bentgrass in both STRI and NTEP trials suitable for golf greens. The fine leaf, exceptional density and remarkable colour lead the market. Tolerates mowing down to 2.5mm. Velvet Bent Grass Latin name: Agrostis canina Seeds/gram: 12,000 Germination: About 2 weeks Shoot density: 700-800 shoots/100cm2 Cutting height: Normal: 3-10mm Not over 15mm Growth: Slender creeping stolons Distinguishing features: Leaves bright green or grey green, finely bladed // Hairless and finely ribbed above // Ligules often pointed, 2-4 mm long // Numerous slender stolons rooting at the nodes Properties: Of the bent grass species, velvet bent tolerates the closest cutting, forming a dense attractive sward which can help to prevent the invasion of Poa annua. This native bent grass has the highest natural resistance to common turf grass 12 diseases and exceptional drought tolerance. Over feeding will cause excessive growth and thatch build up. Key Cultivars VILLA 1 Proven results across Europe, exceptional shoot density and wear tolerance under close mown management, attractive colour and exceptional disease reisistance.
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