Pinkhead Smartweed
Also known as
Pink-headed persicaria, Japanese knotweed, Pinkhead smartweed, Pink knotweed, Pink bubble persicaria and Polygonum capitatum
Taxonomy
Persicaria capitata
Persicaria
Polygonaceae
Caryophyllales
How to care for Pinkhead Smartweed
How often to water your Pinkhead Smartweed
every 9
Pinkhead Smartweed 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 Pinkhead Smartweed in your home
a window
Pinkhead Smartweed love being close to bright, sunny windows 😎.
Place it less than 1ft from a south-facing window to maximize the potential for growth.
Pinkhead Smartweed does not tolerate low-light 🚫.
Select your region to see how the current weather in your area affects the placement of Pinkhead Smartweed in your home 🏡.
How to fertilize Pinkhead Smartweed
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 Pinkhead Smartweed after it doubles in size or once a year—whichever comes first.
Care Summary for Pinkhead Smartweed
Pinkhead Smartweed
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.