Callous Gromwell
Taxonomy
Lithospermum callosum
Lithospermum
Boraginaceae
Boraginales
How to care for Callous Gromwell
How often to water your Callous Gromwell
every 9
Callous Gromwell 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 Callous Gromwell in your home
a window
Callous Gromwell love being close to bright, sunny windows 😎.
Place it less than 1ft from a south-facing window to maximize the potential for growth.
Callous Gromwell does not tolerate low-light 🚫.
Select your region to see how the current weather in your area affects the placement of Callous Gromwell in your home 🏡.
How to fertilize Callous Gromwell
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 Callous Gromwell after it doubles in size or once a year—whichever comes first.
Care Summary for Callous Gromwell
Callous Gromwell
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.