The call to action is clear: to protect the unique floral diversity of the United Kingdom, the public is being encouraged to cultivate less common plants in their gardens. This initiative comes in response to a concerning trend—over half of the garden plants that were once readily available in the UK have disappeared from the market, largely due to shifting flower trends and modern gardening practices that favor a limited selection of blooms.
Plant Heritage, a dedicated charity, is urging individuals not only to incorporate unusual plants into their gardens but also to consider establishing their own national collections of rare flowers. The goal is to prevent the extinction of certain cultivated plants that are at risk.
This May, Plant Heritage will showcase its inaugural show garden at the prestigious Chelsea Flower Show. This event aims to highlight plants that are endangered and to inspire garden enthusiasts to embrace a broader spectrum of floral varieties in their outdoor spaces.
The charity warns that the increasing standardization of our gardens—where gardeners often select the same popular species from local garden centers—can have detrimental effects on both nature and biodiversity. Out of over 133,000 cultivated plants evaluated by Plant Heritage, more than 50% are no longer consistently available for purchase in the UK, with one in six only found in one or two locations.
A representative from the charity remarked, "Nurseries tend to offer only a narrow range of plants, influenced by current trends, which means that the survival of many species depends on how much people appreciate and care for what they already have in their gardens or local parks. Unlike cherished artifacts, we often overlook plants as vital elements of our heritage."
As urban landscapes change—gardens shrink and more areas get paved over—many individuals lack the knowledge of how to propagate plants. This lack of understanding leads them to opt for widely available, easy-to-grow varieties rather than exploring the rich variety of plants that could enliven their gardens.
A diverse plant life is crucial for supporting garden wildlife. Many cultivated flowers play a significant role in attracting pollinators and providing essential shelter and nourishment for various species, including berries and seeds that sustain local fauna.
To combat this loss, Plant Heritage maintains “national collections” of plants, which offer an important safeguard for certain species. These collections serve as a form of “ex situ” (off-site) conservation and are recognized globally. Some plants in these collections, like Brugmansia (Angel Trumpets), are already extinct in their native regions, yet they thrive at Kew Gardens in London.
The Chelsea garden will feature examples from these living libraries—plants already preserved in national collections, as well as those still in need of a dedicated collector to ensure their survival. Featured collections will include Geum, Boehmeria, Polypodium, and Thalictrum. Additionally, the garden will promote plants that currently lack representation, such as Aquilegia and Verbascum, in hopes of inspiring future plant custodians.
Gwen Hines, the chief executive of Plant Heritage, expressed her hope: "We aspire to motivate more individuals to join our community in preserving our nation’s beloved plants. Even though the plants in our gardens might seem safer than those in the wild, they still face risks, making it essential for us to take steps to protect them."
For those interested in learning how to successfully propagate plants, Plant Heritage offers five essential tips:
Start with Healthy Parent Plants: The best way to propagate most plants is by taking cuttings from robust, pest-free specimens. If you have an unkempt plant, look for the youngest, firm green stems and avoid those that are woody or damaged.
Prioritize Cleanliness: Use clean and sharp tools such as snips, scissors, or secateurs to make precise cuts just above a leaf joint, protecting both the parent plant and your new cutting.
Choose the Right Part of the Plant: Cut the stem below the lowest leaf node, ensuring to remove the lower leaves. This node is where new roots will develop. For certain plants like pelargoniums, let the cuttings dry for about an hour to allow callouses to form, which helps to prevent rot. If dealing with large-leaved plants, trimming the leaves by 50% can be beneficial as well.
Prepare a Suitable Environment for Your Cutting: Pot your cutting in a well-draining mix—typically half peat-free compost and half horticultural grit, perlite, or coarse sand. If using rooting hormone, dip the cutting before placing it in the compost firmly. It’s advisable to place the pot in a tray of water instead of watering from the top to maintain moisture levels. Most cuttings do well on a windowsill, but it’s essential to shield them from direct harsh light and avoid overwatering.
Share and Celebrate Your Plants: Don’t forget to label your cuttings with the plant's name and details about where it originated. Sharing your plants and their stories can inspire others and foster a community of plant lovers.
But here’s where it gets controversial—do you think it's enough to simply encourage people to grow rare plants? Or should there be stronger measures in place to support biodiversity? Join the conversation and share your thoughts!
