Grinnell's Beardtongue
Also known as
Penstemon grinnellii grinnellii, Penstemon grinnellii scrophularioides and Penstemon scrophularioides
Taxonomy
Penstemon grinnellii
Penstemon
Plantaginaceae
Lamiales
How to care for Grinnell's Beardtongue
How often to water your Grinnell's Beardtongue
every 9
Grinnell's Beardtongue 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 Grinnell's Beardtongue in your home
a window
Grinnell's Beardtongue love being close to bright, sunny windows 😎.
Place it less than 1ft from a south-facing window to maximize the potential for growth.
Grinnell's Beardtongue does not tolerate low-light 🚫.
Select your region to see how the current weather in your area affects the placement of Grinnell's Beardtongue in your home 🏡.
How to fertilize Grinnell's Beardtongue
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 Grinnell's Beardtongue after it doubles in size or once a year—whichever comes first.
Care Summary for Grinnell's Beardtongue
Grinnell's Beardtongue
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.