Gardening techniques for late summer harvests and plant care

Late summer gardening advice focuses on optimizing harvests and plant health through specific maintenance techniques.

For tomato growers, experts recommend pruning the main stem (topping) before mid-August to redirect energy from new growth toward ripening existing fruit. To boost late-season flavor and prevent fruit splitting, applying comfrey manure—rich in potassium, calcium, and magnesium—is advised. This nutrient boost helps with fruit coloring, density, and taste.

Other seasonal tasks include: • Petunias: Pruning tired plants in August can stimulate new growth and extend flowering. • Hydrangeas: August is an ideal time for semi-hardwood cuttings to propagate new plants. • Garlic: Autumn is the preferred time for planting to allow root development before winter. • Waste reduction: Drying and grinding tomato skins can create a flavorful homemade spice.