Dutch elm

It is important to water Dutch elm (Ulmus hollandica 'Jacqueline Hillier') regularly. Generally, it needs to be watered about once per week in the warm months, and a little less frequently in the cooler months. During hotter spells, the tree may need an extra watering. To water your Dutch elm, thoroughly soak the soil near the tree until it is damp to a depth of 8 to 12 inches. Watering with a slow-running drip system is best as this allows the roots time to absorb the water for maximum uptake. It is important to water at the base of the tree and to avoid foliage wetting, as this can encourage fungal or bacterial diseases. Try to water early in the day or in the late evening to reduce the risk of evaporation but avoid watering in midday sun. Also, after watering, it is best to let the soil dry out between waterings to prevent root rot.

Dutch elm (Ulmus hollandica 'Jacqueline Hillier') typically requires at least 6 hours of direct sunlight each day throughout the growing season. It prefers full sun in the morning, with some light afternoon shade, especially during periods of extreme heat. Morning sun is especially important to promote healthy flowering and fruiting. During the winter months, Dutch elm can tolerate reduced sunlight but should not be placed in an area of complete shade.

The best time to prune Dutch elm (Ulmus hollandica 'Jacqueline Hillier') is early spring, before the start of new growth. Pruning should not be done during the summer months, as it can damage the plant and cause it to suffer from disease. Pruning should be limited to only removing dead, diseased, and crossed branches, as well as suckers that occur from the grafting process. Heavy pruning should be avoided to protect the plant's overall health and appearance. An annual light pruning to maintain the desired size and shape of the plant is recommended.