Invasive perennials are plants that can quickly spread and take over your garden. They typically bloom in the spring and summer and then die back in the fall and winter. Some perennials, however, can become invasive, spreading aggressively and taking over other plants in the garden. Invasive perennials can be difficult to control and eventually crowd out other plants, shrubs, and trees.
Invasive perennials can be a nuisance; if left unchecked, they can quickly take over your garden. You should research when adding plants to your landscape so that you don’t end up with an unruly mess. Understanding the signs of an invasive plant and taking preventative measures such as proper care and pruning can help ensure that your garden has been beautiful for years.
14 Beautiful Invasive Perennials That Can Take Over Your Garden
Lamb’s Ear is an invasive perennial that can quickly take over your garden. Lamb’s Ear is a low-growing ground cover that spreads rapidly by rooting at the leaf nodes. Lamb’s Ear is difficult to control once established in a garden. The best way to prevent this plant from spreading is to remove it before it flowers and sets seed.
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This plant spreads rapidly by sending out runners that root readily at the nodes, forming new plants. Lamb’s Ear can quickly become a nuisance in the garden, crowding out other plants. If you have this plant in your garden, removing it before it gets out of control is important.
Wisteria is a beautiful but aggressive vine that can take over your garden quickly. However, Wisteria can be difficult to control and quickly spread out of control. This invasive vine can take over your garden and choke out other plants if you’re careless. Wisteria can climb trees, fences, and walls. It can also strangle other plants by wrapping itself around them. Wisteria can be difficult to control because it spreads quickly and produces a lot of seeds. If you have Wisteria in your garden, you should remove it as soon as possible.
Agapanthus are widely cultivated as ornamental plants worldwide and have become invasive in some areas. Agapanthus species are evergreen or deciduous herbs with tuberous roots. The leaves are alternate, simple, and mostly clustered at the base of the plant. The flowers are funnel-shaped and borne on leafless stems. The fruit is a capsule that splits open at maturity to release seeds. Many Agapanthus species are used as ornamental plants in gardens. They are drought-tolerant and can be grown in the sun or shade. However, they can become invasive if not properly managed.
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Lamium is a fast-growing plant that can quickly spread through gardens and other landscaping areas. The leaves are typically green or variegated, and the flowers are purple or pink. Lamium can be an aggressive plant, and it is important to control its spread by removing any unwanted growth. If you notice more and more of these weeds in your garden, you may have an invasive Lamium problem. These plants can quickly take over garden beds if left unchecked. Pulling them by hand is often the best control method, but be sure to get all the roots, so they don’t just grow back.
Tansy is an invasive perennial that can take your garden if left unchecked. Tansy can reach up to 3 feet tall and spreads rapidly by rhizomes and seed dispersal. If ingested, this plant is poisonous to people and animals, so keep it away from areas where children or pets play. If you have Tansy in your garden, the best way to control it is by hand-pulling the plants and removing the roots.
It has small, yellow flowers that bloom in summer and early fall and is often used as an ornamental plant. However, Tansy can spread rapidly and easily over gardens, crowding other plants. If you have Tansy in your garden, it’s important to remove it promptly to prevent it from spreading.
The Nasturtium plant grows 12–39 inches tall, with bright green leaves and showy yellow, orange, and red flowers. Nasturtiums are easy to grow from seed and often self-seed in the garden if left unchecked. They need full sun but tolerate partial shade and moist, well-drained soil.
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They are not particular about soil type or pH but prefer a slightly acidic to neutral soil (pH 6.0-7.5). Nasturtiums are not drought-tolerant and need regular watering during extended periods of dry weather. If you’re looking for a fast-growing ground cover or trailing plant for your garden, Nasturtiums may be just what you need. But beware, these vigorous plants can quickly become invasive if allowed to run rampant through your flower beds.
The Obedient plant spreads rapidly through underground rhizomes, as well as by seed dispersal. Once established, it is difficult to control due to its vigorous growth habit. If you are looking for a shrub for your garden that does not require much maintenance and will provide interest throughout the growing season, the Obedient plant may be a good choice. However, this plant can spread aggressively and become a nuisance if not kept in check.
If you have an Obedient plant in your garden, you must take measures to control it. Otherwise, it will spread rapidly and crowd out other plants. The Obedient plant can be controlled by hand-pulling, but this is often difficult because the roots are very deep and widespread. Once it is under control, you can replant your garden with native plants that will not invade and take over.
Mint is a perennial herb with a strong smell and small, dark green leaves. Mint spreads quickly and easily and can take over a garden if left unchecked. Mint likes moist soil and full sun and will do best in these conditions. However, Mint can also tolerate partial shade and drier soils. Once established, Mint is very difficult to get rid of. If you have Mint in your garden, control it well so it doesn’t take over.
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These runners can easily root in the ground and create new Mint plants wherever they touch down. If you have Mint in your garden, itit’smportant to keep it well-contained so it dodoesn’take over. One way to do this is to grow it in a pot or container with drainage holes. Regularly water and fertilize monthly during the growing season. You can also try growing Mint underground to prevent the roots from spreading.
Japanese Anemones are herbaceous perennials that grow from 2 to 3 feet tall. They have dark green, deeply lobed leaves and showy white, pink, or purple flowers that bloom from summer to fall. If left unchecked, Japanese Anemones spread rapidly by rhizomes and can quickly take over a garden bed or lawn.
They tolerate a wide range of growing conditions and can even survive in the shade, making them difficult to control once they become established. If you have Japanese Anemones in your garden, removing them before they go to seed to prevent them from spreading further is important.
BiBishop’seed is a fast-growing, invasive perennial that can quickly take over your garden. It has white flowers that bloom in summer and can reach up to 3 feet tall. BiBishop’seeds spreads rapidly by runners and can be difficult to control once it gets established. If you have this plant in your garden, removing it before it spreads too much is important.
BiBishop’seed is an invasive, fast-growing perennial that can take over your garden quickly. Through its aggressive root system, BiBishop’seed spreads can easily crowd out other plants in your garden. If you have this plant in your garden, removing it as soon as possible before it takes over is important.
Ostrich Ferns are among the most aggressive and difficult invasive perennials to control. They are fast-growing and can quickly spread through underground rhizomes. Once established, they are very difficult to remove. They are often found in moist, shady areas such as woods and streams. If you have Ostrich Ferns in your garden, removing them as soon as possible before they spread further is best.
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Ostrich Ferns are a type of fern that can become invasive in gardens. They are fast-growing and can quickly outcompete other plants in the garden. Ostrich Ferns can also spread through their underground rhizomes, making them difficult to control. If you have ferns in your garden, it is important to keep them well-controlled to prevent them from taking over.
Creeping Bellflower is a fast-growing, invasive perennial that can quickly take over your garden. This plant has long, thin leaves that are deep green. The bell-shaped flowers are blue or purple and bloom from June to August. Creeping Bellflowers spread rapidly by seed and can also spread through their root system.
This plant is very difficult to control once it has established itself in your garden. Creeping Bellflower is an invasive perennial that can take over your garden. It is a fast-growing plant that produces numerous small blue flowers. The plant spreads rapidly by rhizomes and can quickly become a nuisance in the landscape.
Borage is a fast-growing, annual herb that can reach up to 2 feet in height. The leaves are large and hairy, and the flowers are blue or white. Borage can spread rapidly through seed production, and it can also spread vegetatively via rooting at the leaf nodes. It invades gardens, fields, and other disturbed areas, crowding out native plants.
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Borage is particularly problematic in prairies and other grassland habitats. If you have Borage in your garden, you should take steps to control it. Pulling the plants by hand is often effective, but you must remove all the roots. You can also try mowing or burning the plants before they flower and set seed.
Comfrey is a fast-growing, invasive perennial that can quickly take over your garden. This tough plant can grow up to 3 feet tall and has dark green, oval-shaped leaves. Comfrey is often used as an herbal remedy for wounds and bruises but can also be a nuisance in the garden. If you have this plant in your garden, keep it under control, so it dodoesn’take over.
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Comfrey is an invasive perennial herb that can take your garden if left unchecked. Deep, fibrous roots make it difficult to control and remove once it becomes established. Comfrey also produces many seeds that animals and humans easily spread. This plant can quickly become a nuisance in gardens and landscapes, crowding out other plants and taking over space. Controlling it before it gets out of hand is important if you have Comfrey in your garden.
Invasive perennials are a problem in many gardens because they can quickly spread and take over. There are several ways to control them, but the best way is to prevent them from getting started in the first place. Be sure to choose native plants for your garden and avoid planting invasive species.
While they may be pretty, they can be a nightmare for gardeners who want to maintain a tidy landscape. Pull them by hand or use a trowel to dig them up, making sure to get all the roots. Use a glyphosate herbicide, and be careful not to spray other plants. Cover the area with black plastic or mulch to prevent new plants from sprouting. Look for new growth and pull it up as soon as you see it.
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