Gardeners growing 2 lavender varieties should complete one simple task each week

Lavender's unmistakable scent makes it simple to locate even when nestled deep within flower beds, though numerous gardeners position it prominently in garden borders due to its appealing leaves. English lavender (Lavandula angustifolia) cultivars such as Hidcote and Munstead remain favourites across the UK for their straightforward cultivation, assuming they get adequate sunshine and free-draining soil. Being a Mediterranean species, lavender enjoys a reputation for surviving drought conditions, which can mislead gardeners into believing that lavender requires no watering whatsoever.

However, there exists a crucial period when juvenile and pot-grown lavenders prove less independent. Neglecting their initial hydration requirements threatens to hinder root growth and general strength, which are precisely what transform lavender into such a remarkable garden feature, reports the Express.

Lavenders established in soil this spring should be regarded as delicate perennials instead of drought-resistant shrubs, advises the Royal Horticultural Society (RHS).

The RHS stated that lavender "should be watered regularly during its first summer", approximately once or twice weekly.

During exceptionally warm periods, the growing medium might become parched between watering sessions, necessitating more frequent attention.

This proves especially vital for gardeners cultivating lavender in containers - whether as ornamental table displays, on balconies or patios.

The RHS noted that these prove less tolerant than ground-planted lavender since the roots possess only a restricted volume of soil from which to source water. Aim to water thoroughly, until you see water seeping out of the pot's drainage holes.

Then, let the compost nearly dry out before the next watering.

This might involve checking the moisture level with your finger or a basic soil meter.

Once lavender has survived its first full season and its taproot has grown deep, additional watering becomes less frequent.

The RHS points out that in the UK, most mature lavender plants can rely solely on rainfall during summer, only needing extra watering during extended dry spells.

Overwatering at this point can be detrimental to your lavender plants. It can lead to root rot and weaken what is typically a very resilient plant.

How to water lavender

When hand watering, aim the water at the root or base of the plant; try to minimise contact between the irrigation water and the flowers and leaves.

Gardening experts concur that it's best to water lavender early in the morning, allowing the water to evaporate throughout the day. This helps prevent common fungal diseases that can develop when water lingers on the plant for too long.

Two frequent fungal problems linked to overwatering are Botrytis and Septoria leaf spot.

Botrytis manifests as grey, mouldy growth at the base of the plant, causing leaves to turn yellow, wilt, and eventually die. On the other hand, septoria leaf spot begins with small grey spots on the leaves, which can spread and weaken the plant.