Growing
Pots & Trays, Plant Pots, Seed Trays, Grow Bags, Plant Labels, Planter Bags, Protective Covers, Fertilisers and Propagation.
You do not have a link list with a handle set to growing, or you do and it's empty. Go ahead and create a link list called Growing on your Navigation page and populate that link list with links that point to collections, to see collections listed here. Make sure the link list also has a handle set to growing.