Giant Knotweed (Reynoutria Sachalinensis) is a perennial herb in the Polygonaceae family with moderate care difficulty. It requires moderate watering and full sun or partial shade light in USDA hardiness zones 4-9. This plant is safe for cats and dogs.
Reynoutria sachalinensis, commonly known as Giant Knotweed, is a large herbaceous perennial plant known for its extensive rhizomatous root system and large heart-shaped leaves.

Giant Knotweed
Reynoutria Sachalinensis
Reynoutria sachalinensis, commonly known as Giant Knotweed, is a large herbaceous perennial plant known for its extensive rhizomatous root system and large heart-shaped leaves.
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Care Calendar
Monthly care tasks for Giant Knotweed
Expert Care Tips
Pro tips from botanists and plant experts
Watering Tip
Check soil moisture by inserting your finger 1 inch deep. Water only when the top layer feels dry to prevent overwatering.
Humidity Trick
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Growth Hack
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