People with certain common garden plants are being advised to act now to ensure healthy growth and a disease-free winter. The Royal Horticultural Society (RHS) suggests that individuals with roses, Mediterranean shrubs, Parthenocissus, and Buddleja davidii take action promptly. Pruning, which involves selectively removing parts of a plant to stimulate better growth, is recommended. However, as each plant requires specific treatment, it is crucial to conduct research before pruning. As we approach the dormant season, experts emphasize the importance of giving attention to various aspects of the garden.
Regarding roses, David Austin of the RHS suggests cutting back shrub roses by one-third in mid to late October for those planted in windy or exposed locations. This practice helps prevent “wind rock,” where the rose’s base becomes unstable due to wind. Clearing away any dead, dying, diseased, or damaged stems and foliage is also essential.
For Mediterranean shrubs like rosemary, lavender, and citrus, it is recommended to trim them after their bloom but before winter sets in to reduce stress. Pruning rosemary by about one-third helps maintain its size and shape, while lavender should be pruned approximately five to six weeks before the first frost to prevent it from becoming too bushy.
When dealing with Parthenocissus (Boston ivy or Virginia creeper), it is advised to tie new shoots to their supports during the initial growing seasons. Established plants should be pruned anytime from now until Christmas to keep them in check. Focus on cutting back stems that encroach on windows, gutters, or roofs, with neglected plants responding well to severe pruning by cutting back to plump buds about one meter from the ground at this time of year.
In the case of Buddleja davidii, the RHS recommends a distinctive pruning approach. While typically pruned hard in the spring, cutting it back by half now not only tidies up the appearance but also provides protection against wind rock. Similarly, other shrubs like Cornus alba and Lavatera may benefit from being halved now and pruned again in the spring.
By following these expert tips and preparing garden plants for the dormant season, individuals can promote healthy growth and prevent diseases. It is essential for gardeners to be proactive in caring for their plants to ensure their well-being during the winter months.