Oregano in August: monthly care

Oregano benefits from two main pruning sessions each year to keep plants compact, productive, and tidy. The first pruning takes place in March, just as new growth begins to emerge. Cut back all the previous year's stems to within a few centimetres of the base, removing any dead, woody, or frost-damaged material. This hard prune encourages a flush of fresh, aromatic foliage and prevents the plant from becoming leggy and sparse in the centre. Use clean, sharp secateurs or garden shears for the job. The second pruning comes in August, after the main flowering period. Oregano produces pink or purple flowers throughout summer, which are attractive to bees and other pollinators, but allowing all the flowers to set seed can weaken the plant and reduce leaf production. In August, shear back the flowered stems by about half to two-thirds, cutting just above a set of healthy leaves. This encourages a second flush of tender new growth that you can harvest into autumn and helps maintain a neat, bushy shape. Throughout the growing season, you can also harvest stems regularly for the kitchen—this acts as a form of light pruning and keeps the plant vigorous. Cut stems just above a leaf node to encourage branching. Avoid cutting into old, woody growth lower down, as oregano is slow to regenerate from bare wood. If your oregano becomes very woody or unproductive after several years, consider replacing it or taking cuttings in early summer to start fresh plants. Oregano is naturally short-lived as a perennial, and regular pruning extends its productive life considerably.

Oregano is a low-maintenance herb that thrives on neglect once established. Water sparingly—oregano has low water needs and develops the strongest flavour in dryish conditions. In spring and early summer, water young plants lightly if the soil dries out completely, but established oregano rarely needs watering except during prolonged drought. Overwatering or poorly drained soil encourages root rot and dilutes the essential oils that give oregano its pungency. Feeding is not necessary. Oregano grows naturally on poor, stony soils in the Mediterranean, and rich or heavily fertilised soil produces lush but flavourless foliage. Avoid adding compost, manure, or general-purpose fertilisers. If your soil is very poor, a light dressing of blood, fish and bone in early spring is more than sufficient, but most gardeners find oregano does perfectly well with no feeding at all. Oregano is fully hardy across temperate Europe (zone 4a–9a) and requires no winter protection. The foliage may die back partially in cold winters, but the plant will regrow vigorously from the base in spring. In wet winters, ensure the crown isn't sitting in waterlogged soil, as this is the main cause of winter losses. Pests are rarely a problem. Oregano's aromatic oils deter most insects, though aphids occasionally cluster on soft new growth in spring—simply pinch out affected shoot tips or rinse them off with water. Diseases are uncommon if drainage is good, but root rot and fungal issues can occur in heavy, wet soils. Mulching around oregano is best avoided, as it traps moisture; if you mulch nearby plants, keep a clear circle around the oregano's crown.