Plant Care Pink Knotweed

Pink Knotweed

Taxonomy

Polygonum capitatum
Polygonum
Polygonaceae
Caryophyllales

How to care for Pink Knotweed

Water

How often to water your Pink Knotweed

Water needs for Pink Knotweed
0.5 cups
every 9

Pink Knotweed needs 0.5 cups of water every 9 when it doesn’t get direct sunlight and is potted in a 5" pot located in Washington, District of Columbia.

Use our water calculator to personalize watering recommendations to your environment or download Greg for more advanced recommendations for all of your plants.

Calculate water needs of Pink Knotweed

Water 0.5 cups every
9

Does your plant get direct sunlight?

Select the pot size

5"
Light

Check the growing potential in your area

A plant's growing potential is determined from its location, the time of year, and current local weather.

Plant care guide for Pink Knotweed in Washington, District of Columbia

Washington, District of Columbia

32% Very Low

Growing Pink Knotweed in Washington right now

Light needs for plant Pink Knotweed in Washington, District of Columbia

Plant growth potential is currently low 📉

January 18th, 2022

Sunlight intensity as measured by “net radiation” in Washington is currently low 📉.

The availability of high quality sunlight in your home impacts ability for plants to thrive and is key in determ…

Read more

Light needs for plant Pink Knotweed in Washington, District of Columbia

Sunlight will increase by 22.3% ☀️

January 18th, 2022

Washington is trending towards greater sunlight intensity!

The amount of sunlight in Washington is expected to increase by 22.3% over the next 2 weeks to an average of 8.6 megajoules of energy per…

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Light needs for plant Pink Knotweed in Washington, District of Columbia

Daylight will increase by 0.6 hours 📈

January 18th, 2022

This month, Washington is getting an average of 6.9 hours of clear sky sunlight per day.

Hours of daylight will increase by 6.7% over the next two weeks. Your plants will get 10.0 total hours of d…

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Finding light for Pink Knotweed in your home

Light needs and placement for plant Pink Knotweed: 1ft from a window
1ft or less from
a window

Pink Knotweed love being close to bright, sunny windows 😎.

Place it less than 1ft from a south-facing window to ensure it receives enough light to survive during this time of reduced sunlight intensity in Washington, District of Columbia ⛅.

Pink Knotweed does not tolerate low-light 🚫.

Nutrients

How to fertilize Pink Knotweed

Nutrient, fertilizer, and repotting needs for Pink Knotweed: repot after 2X growth

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 Pink Knotweed after it doubles in size or once a year—whichever comes first.

When to repot Pink Knotweed

Nutrient needs for plant Pink Knotweed in Washington, District of Columbia

Is this a good time of year to repot? No ⏳

January 13th, 2022

The growing potential in Washington is low 📉.

Repotting in late fall or winter when the day lengths are shorter can be very stressful for a plant and cause it to go into shock.

It's best to re…

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FAQs
Water Needs
Sunlight Needs
Toxicity
Soil
Fertilizer

Care Summary for Pink Knotweed

Pink Knotweed

Pink Knotweed


Greg recommends:

Water

0.5 cups every 9 days

Placement

< 1ft from a window

Nutrients

Repot after 2x growth

Based on your location in Washington, District of Columbia, the 4” pot your plant is in, and that it doesn’t get direct sunlight.

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