Landscape Architecture Aotearoa - Winter 2016 Issue 01 | Page 36

34 LANDSCAPE ARCHITECTURE AOTEAROA Shown here one year post-planting, Kauri Park Nursery supplied plants for the NZTA MacKays to Peka Peka Expressway project. Growing green Eco-sourcing for optimal results Text by Fiona Hoyle  Images provided by Kauri Park Kauri Park is New Zealand’s largest native plant nursery with a site north of Auckland and another in Palmerston North. Kauri Park produced a total of 7 million plants in 2015; this increased to 10 million in 2016. These plants are used mainly in commercial landscape projects, riparian plantings, subdivision planting, wetlands, and Manuka forestry. “We understand the importance of using high quality plants in landscaping projects — plants that can easily acclimatize to the new conditions, plants that will result in high success rates,” says Kauri Park director Phil Wearmouth. “High quality plants can decrease the overall cost of the project and take less time to achieve the desired outcome.” Plants not only need to look great when they are planted, but have the right fiber and qualities to continue their growing pattern once in the ground. Kauri Park mixes a blend of seven additional ingredients into the soil at the time of production to improve the quality of the plant. These ingredients include a mixture of fertilizers — some are a quick-release and give the plants an initial boost, while others are slow-releasing and help continue the plant growth once out of the nursery and into the landscape. Kauri Park uses a unique tray system (of their own design) to help facilitate healthy growth post-planting. The individual plastic cells have grooves running lengthways, which prevent the plant roots from growing in a circular motion as they may do in a planter bag or a round pot. When the plants are pulled out of the trays, the roots are freed. This helps minimize transplanting shock and maximizes successful establishment post-planting. The cleverly designed tray also minimizes handling of the tops of the plants pre-planting. Both at