OPEN_796_EAONE_LANDSCAPE_SPECIFICATION 10 Aug 2016 APPENDIX 9
Q31 External planting
To be read with Preliminaries/General conditions. GENERAL INFORMATION/ REQUIREMENTS
112 SITE CLEARANCE GENERALLY • General: Remove rubbish, concrete, metal, glass, decayed vegetation and contaminated topsoil.
• Stones: Remove those with any dimension exceeding 50 mm. • Contamination: Remove material containing toxins, pathogens or other extraneous substances harmful to plant, animal or human life.
• Vegetation: Clear scrub to ground level by flail mowing and remove arisings; retain and protect trees indicated on drawings.
• Large roots: Grub up and dispose of without undue disturbance of soil and adjacent areas. • Additional requirements: Remove remnants of old fence posts and mesh.
115 SITE CLEARANCE FOR AQUATIC/ MARGINAL PLANTING • Clearance: - General: Remove loose debris and rubbish. - Contamination: Remove material containing toxins, pathogens or other extraneous substances harmful to plant, animal or human life.
• Vegetation/ Algae: Skim surface to remove duckweed. • Additional requirements: As per landscape managment plan.
118 SOIL CONDITIONS • Soil for cultivating and planting: Moist, friable and (except in aquatic/ marginal planting) not waterlogged.
• Frozen or snow covered soil: Give notice before planting. Provide additional root protection. Prevent planting pit sides and bases and backfill materials from freezing.
120 CLIMATIC CONDITIONS • General: Carry out the work while soil and weather conditions are suitable. - Strong winds: Do not plant.
125 TIMES OF YEAR FOR PLANTING • Deciduous trees and shrubs: Late October to late March. • Conifers and evergreens: September/ October or April/ May. • Herbaceous plants (including marginal): September/ October or March/ April. • Container grown plants: At any time if ground and weather conditions are favourable. - Watering and weed control: Provide as necessary.
• Dried bulbs, corms and tubers: September/ October. • Colchicum (crocus): July/ August. • Green bulbs: After flowering in spring. • Wildflower plugs: Late August to mid November or March/ April. • Aquatic plants: May/ June or September/ October.
130 MECHANICAL TOOLS • Restrictions: Do not use within 100 mm of tree and plant stems.
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