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