Sand Knotweed
Taxonomy
Polygonum arenarium
Polygonum
Polygonaceae
Caryophyllales
How to care for Sand Knotweed
How often to water your Sand Knotweed
every 9
Sand 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.
Water 0.5 cups every
9
Finding light for Sand Knotweed in your home
a window
Sand Knotweed love being close to bright, sunny windows 😎.
Place it less than 1ft from a south-facing window to maximize the potential for growth.
Sand Knotweed does not tolerate low-light 🚫.
Select your region to see how the current weather in your area affects the placement of Sand Knotweed in your home 🏡.
How to fertilize Sand Knotweed
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 Sand Knotweed after it doubles in size or once a year—whichever comes first.
Care Summary for Sand Knotweed
Sand Knotweed
Greg recommends:
Water
0.5 cups every 9 days
Placement
< 1ft from a window
Nutrients
Repot after 2x growth
Based on the 4” pot your plant is in, and that it doesn’t get direct sunlight.