Trillion Trees Australia is working in partnership with Greening Australia to trial ‘Growcoon’ technology to boost seeding success.
The Growcoon is a unique cutting and seed plug holder made of 100% biodegradable polymer material, that is designed to support and protect the root ball of a young plant in the early stages of its growth. The unique patented net structure was developed in Europe, and gives roots plenty of space to develop optimally and form a nice root ball. After transplantation, the Growcoon will degrade completely, leaving no waste.
Greening Australia has faced challenges getting several species established in their seed production area, with young plants struggling to survive the early stages of growth. This season, we’ve partnered with them on a new project aimed at improving outcomes. Focusing on three target species, the trial is exploring every step of the process—boosting germination, supporting early growth, and helping seedlings transition successfully into the field.
The trial aims to produce over 3000 seedlings across three species and 11 provenances. The trial species are Eremaea pauciflora, Senna artemisioides and Banksia attenuata.
A key part of the project is the use of Growcoons, small biodegradable inserts designed to protect a plant’s roots while it develops. By growing seedlings in these containers, we hope to reduce the root disturbance that often leads to stress and mortality when plants are transplanted.
Growcoons are made from 100% biodegradable material and can be filled with any potting mix. Their open, mesh-like structure gives roots plenty of room to spread and form a healthy root ball. Once the plant is ready for the field, the entire Growcoon can be planted along with it. Over time, it naturally breaks down into water and CO₂, leaving no waste behind.
By providing a gentler transition for seedlings, Growcoons may offer Greening Australia a practical, sustainable way to improve establishment and enhance diversity in seed production areas.
Assistant Nursery Manager Steven Orange checks the Growcoon seedlings for pests.
Senna artemisioides seedlings emerging inside their Growcoons