Giant hogweed (Heracleum mantegazzianum) is a non-native, invasive weed. Native to southern Russia, it’s a member of the Apiaceae family and is closely related to cow parsley, carrots and parsnips. Originally introduced to the UK as an ornamental plant in the 19th century, it has large, umbrella-shaped flower heads and can grow to over 3m (10ft) in height. However, its sap can cause severe burns if it comes into contact with human skin.
Giant hogweed can now be found throughout much of the UK, especially waste ground, roadside verges and river banks, where its seeds are transported by water. It grows in dense clumps and can out-compete native plants.
It’s listed on Schedule 9 of the Wildlife and Countryside Act in England and Wales, and the Government’s list of Invasive Non-Native Plant Species of special concern. This means that, while it’s not an offence to have it already growing in your garden, it is an offence to plant, cultivate or permit it to reproduce – and you should treat or dispose of it where possible. You’re also not allowed to plant it in the wild or let it escape from your garden into the wild.
Is giant hogweed dangerous?
Yes. Giant hogweed has phototoxic sap, which makes skin extremely sensitive to sunlight. If giant hogweed sap gets onto your skin and the skin is then exposed to sunlight, it can burn and blister. These blisters may last for several weeks and may even recur over months or even years.
If you touch giant hogweed and do get its sap on your skin, wash your skin immediately, taking care to ensure all sap has been rinsed off. Then keep the area covered for the next few days, to avoid it being exposed to sunlight. You may want to seek medical advice.
The website greengrove.cc is an aggregator of news from open sources. The source is indicated at the beginning and at the end of the announcement. You can send a complaint on the news if you find it unreliable.
Allium sativum, or garlic, is grown for its bulbs. This garlic bulb has remarkable culinary and medicinal properties, and it also produces flower stems in some hardneck varieties. What will follow next depends heavily on what you want from your garlic. But, first things first.
Catalpa trees, with two species native to the United States, are known for their beautiful and plentiful blooms and for being the sole source of food for catalpa worms—caterpillars that strip the tree of its foliage and eventually become the catalpa sphinx moth.
August and September are the peak months when droughts can take place, which can cause some panic for gardeners. And while this is totally understandable, there are ways to keep your garden cool and watered even during the hottest and driest times of the year, so don't go into panic mode yet.
Clueless about what to do with your orchids after they bloom? Don’t let the anticipation of the next set of blooms overwhelm you. Instead, prepare! We share steps to keep your orchids healthy and ripe for recurring blooms in the coming season.
Pruning plants in summer is just as important for some plants as winter pruning. By pruning in summer, you can reap the rewards of better displays from ornamental plants. You’ll also encourage bigger crops from fruit trees and bushes. Removing new summer growth before it turns woody reduces growth-promoting nitrogen, allowing potassium to build up – and more potassium means more flowers and fruit. You’ll also keep plants, such as shrubs, climbers and rambling roses, within bounds and maintain an attractive shape.
Growing in the harshest and most hostile conditions, cactus is the undisputed metaphor for resilience, inner strength, and endurance. From its tough, thorny exteriors to its rich and treasure-filled pads, discover what does a cactus symbolize and more behind its meaning!
This time of year, many caterpillars are actively feeding on trees throughout the state. These spikey little caterpillars will turn into the IO moth, a species common throughout South Carolina.
Not only is high humidity uncomfortable for you, it can actually cause serious damage to your home. Especially in the dog days of summer and long bouts of rainfall, humidity levels have been rising at an alarming level.
Did you know that you should probably be using fertilizer for your vegetable garden? We know it can sometimes be difficult to figure out when to fertilize your vegetables and even how much fertilizer to use but luckily, we've got you covered. Read on to see what happens if you don't use fertilizer for your garden and why it's an essential part of keeping your plants and produce healthy and thriving.