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