What type of soil should I use for my German Knotgrass?

German Knotgrass does best in well-draining soil . A good soil will contain lots of organic matter such as coco coir as well as perlite or vermiculite to help with drainage. Adding a handful of perlite to regular store-bought potting soil should do the trick!

What is the growth pattern for German Knotgrass?

German Knotgrass grows along the ground and sends out shoots which will spread across the soil.

1/1

German Knotgrass

Q: How often should I water my German Knotgrass?

German Knotgrass prefers for the soil to dry out between waterings and should be watered regularly . Use our water calculator to personalize watering recommendations to your environment or download Greg for more advanced recommendations for all of your plants.

Q: How much sunlight does my German Knotgrass need?

German Knotgrass requires abundant, bright and direct light. Place it less than one foot from a window to ensure it receives enough light to survive 💪. Select your region to see how the current weather in your area affects the placement in your home 🏡.

Also known as

German-knotweed, annual knawel and knawel

Taxonomy

Scientific name

Scleranthus annuus

Genus

Scleranthus

Family

Caryophyllaceae

Order

Caryophyllales

How to care for German Knotgrass

Water

How often to water your German Knotgrass

German Knotgrass needs 0.5 cups of water every 9 when it doesn’t get direct sunlight and is potted in a 5" pot located in Tucson, Arizona.

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

Does your plant get direct sunlight?

No Yes

Select the pot size

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.

Tucson, Arizona

48% Low

Growing German Knotgrass in Tucson right now

Plant growth potential is currently medium 👌

January 30th, 2023

Sunlight energy as measured by “net radiation” in Tucson is currently medium 👌.

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

Sunlight will increase by 23.4% ☀️

January 26th, 2023

Tucson is trending towards greater sunlight intensity!

The amount of sunlight in Tucson is expected to increase by 23.4% over the next 2 weeks to an average of 13.0 megajoules of energy per m² per…

Daylight will increase by 0.8 hours 📈

January 30th, 2023

This month, Tucson is getting an average of 9.4 hours of clear sky sunlight per day.

Hours of daylight will increase by 7.5% over the next two weeks. Your plants will get 10.8 total hours of dayli…

Light needs and placement for plant German Knotgrass: 1ft from a window

German Knotgrass 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 Tucson, Arizona ⛅.

German Knotgrass does not tolerate low-light 🚫.

Nutrients

How to fertilize German Knotgrass

Nutrient, fertilizer, and repotting needs for German Knotgrass: 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 German Knotgrass after it doubles in size or once a year—whichever comes first.

When to repot German Knotgrass

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

January 26th, 2023

The growing potential in Tucson 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 repot …