Plant Care Common Flax

Common Flax

About Common Flax

The leaves of this plant are simple, alternate, narrow and smooth-margined. The flowers are pale blue, 5-parted, the petals broad and spreading, and the fruit a capsule.


Linum usitatissimum

Also known as

Flax, Common flax and Linseed,

How to care for Common Flax


How often to water your Common Flax

Water needs for Common Flax
0.5 cups
every 9

Common Flax 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.

Calculate water needs of Common Flax

Water 0.5 cups every

Does your plant get direct sunlight?

Select the pot size


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.

Select a city to check sunlight intensity

Finding light for Common Flax in your home

Light needs and placement for plant Common Flax: 1ft from a window
1ft or less from
a window

Common Flax love being close to bright, sunny windows 😎.

Place it less than 1ft from a south-facing window to maximize the potential for growth.

Common Flax does not tolerate low-light 🚫.

Select your region to see how the current weather in your area affects the placement of Common Flax in your home 🏡.


How to fertilize Common Flax

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

Water Needs
Sunlight Needs
Growth Pattern
Growing Outdoors

Care Summary for Common Flax

Common Flax

Common Flax

Greg recommends:


0.5 cups every 9 days


< 1ft from a window


Repot after 2x growth

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

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