Dortmann's Cardinalflower
Also known as
water lobelia
Taxonomy
Lobelia dortmanna
Lobelia
Campanulaceae
Asterales
How to care for Dortmann's Cardinalflower
Water
How often to water your Dortmann's Cardinalflower
every 9
Dortmann's Cardinalflower 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
Light
Check the growing potential in your area
A plant's growing potential is determined from its location, the time of year, and current local weather.
Select a city to check sunlight intensity
Finding light for Dortmann's Cardinalflower in your home
a window
Dortmann's Cardinalflower love being close to bright, sunny windows 😎.
Place it less than 1ft from a south-facing window to maximize the potential for growth.
Dortmann's Cardinalflower does not tolerate low-light 🚫.
Select your region to see how the current weather in your area affects the placement of Dortmann's Cardinalflower in your home 🏡.
Nutrients
How to fertilize Dortmann's Cardinalflower
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 Dortmann's Cardinalflower after it doubles in size or once a year—whichever comes first.
FAQs
Dortmann's Cardinalflower prefers for the soil to dry out between waterings and should be watered regularly. Use our water calculator to personalize watering recommendations to your environment or download Greg for more advanced recommendations for all of your plants.
Sunlight Needs
Dortmann's Cardinalflower requires abundant, bright and direct light. Place it less than one foot from a window to ensure it receives enough light to survive 💪. Select your region to see how the current weather in your area affects the placement in your home 🏡.
Toxicity
Greg does not have confirmed data on this plant’s toxicity. If you, a family member, or a pet consumes plant material of unknown toxicity, it’s always best to consult a medical professional.
If you or someone else ingested this plant, call Poison Control at US (800) 222-1222. If a pet consumed this plant, contact your veterinarian or the ASPCA at US (888) 426-4435.
Soil
Dortmann's Cardinalflower does best in well-draining soil. A good soil will contain lots of organic matter such as coco coir as well as perlite or vermiculite to help with drainage. Adding a handful of perlite to regular store-bought potting soil should do the trick!
Growth Pattern
Dortmann's Cardinalflower grows vertically and new growth will emerge from the top of the plant.
Care Summary for Dortmann's Cardinalflower
Dortmann's Cardinalflower
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.
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