
Dense-Spike Blackroot
Also known as
Fox-tail or coastal blackroot
Taxonomy
Pterocaulon pycnostachyum
Pterocaulon
Asteraceae
Asterales

How to care for Dense-Spike Blackroot
How often to water your Dense-Spike Blackroot

every 9
Dense-Spike Blackroot 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 Dense-Spike Blackroot in your home

a window
Dense-Spike Blackroot may have difficulty thriving, and will drop leaves 🍃, without ample sunlight.
Place it less than 3 feet from a south-facing window to maximize the potential for growth.
Select your region to see how the current weather in your area affects the placement of Dense-Spike Blackroot in your home 🏡.
How to fertilize Dense-Spike Blackroot

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 Dense-Spike Blackroot after it doubles in size or once a year—whichever comes first.
Care Summary for Dense-Spike Blackroot
Dense-Spike Blackroot
Greg recommends:

0.5 cups every 9 days

< 3ft from a window

Repot after 2x growth
Based on the 4” pot your plant is in, and that it doesn’t get direct sunlight.
