How to Identify Japanese Knotweed This Summer

HOW TO IDENTIFY JAPANESE KNOTWEED THIS SUMMER.

Summer is the prime time to identify Japanese knotweed as it is in its growing season.

If you do think you have Japanese knotweed on your property, it is important to act quickly as the best months for treatment are between August to October.

Here is what to look out for:

How to Identify Japanese Knotweed This Season

The Stem

Japanese knotweed can reach incredible heights of 2/3m in just one growing season and can grow up to 10 cm per DAY.

During the early summer, the stems will develop purple speckles and are hollow.

In the winter the stems turn brown and become more bamboo like, but these are dead as this is a perennial.

The Leaves

In the spring the leaves or the stems are red with leaves unfurled and these look like asparagus. During the summer, Japanese knotweed leaves form a bright green, heart-like shape and can be up to 15 cm across each. When the leaves are growing, they appear in a zig-zag format as they grow on alternating sides of the stem.

Flowering

In the late summer, between August and October, you can identify Japanese Knotweed as it has clusters of tiny white flowers that will begin to appear on the plant. This means they are high in pollen which is good for the bees and insects.

Contact Us:

We can help you identify Japanese Knotweed throughout the year using our free online identification guide. However, if you have a suspicious looking plant on your property and are still struggling to identify it then do not hesitate to get in touch with us on our freephone 0800 133 7444