Gardening and horticultural activities for September

September serves as a critical period for garden maintenance and seasonal preparation across various regions. In France, gardeners are advised to sow lawns and biennial flowers to ensure spring blooms, while also performing essential pruning on raspberry bushes to prevent disease and improve future harvests. Natural remedies, such as rapeseed oil and peppermint oil, are recommended for managing pests like insects and slugs.

In Belgium and the Netherlands, seasonal tasks include light pruning of hedges like privet and yew to maintain shape, as well as observing autumn nature photography and mushroom growth. In Argentina, the month marks a time for planning garden beds, nourishing soil, and starting staggered plantings for vegetables like tomatoes and peppers.

Several horticultural events are scheduled, including the vegetable garden days at Villandry and the 13th edition of the Plant Days at Maladrerie Saint-Lazare in Beauvais, which features professional exhibitors and workshops. Additionally, the Prunus persica GOLDEN CAESAR variety has been recognized with a gold award at the Innovert 2026 competition for its disease resistance and drought tolerance.