Also known as
Giant Knotweed and Sakhalin knotweed
How to care for Giant Knotweed
Giant Knotweed needs 0.5 cups of water every 9 when it doesn’t get direct sunlight and is potted in a 5" pot.
Use our water calculator to personalize watering recommendations to your environment or download Greg for more advanced recommendations for all of your plants.
Giant Knotweed love being close to bright, sunny windows 😎.
Place it less than 1ft from a south-facing window to maximize the potential for growth.
Giant Knotweed does not tolerate low-light 🚫.
Select your region to see how the current weather in your area affects the placement of Giant Knotweed in your home 🏡.
Most potting soils come with ample nutrients which plants use to produce new growth.
By the time your plant has depleted the nutrients in its soil it’s likely grown enough to need a larger pot anyway.
To replenish this plant's nutrients, repot your Giant Knotweed after it doubles in size or once a year—whichever comes first.