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Also known as
wild flowers
Taxonomy
Lobelia cardinalis
Lobelia
Campanulaceae
Asterales

How to care for Cardinal Flower

How often to water your Cardinal Flower

every 9
Cardinal Flower needs 0.5 cups of water every 9 when it doesn’t get direct sunlight and is potted in a 5" pot located in Houston, Texas.
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

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.
Houston, Texas
55% Medium

Finding light for Cardinal Flower in your home

a window
Cardinal Flower love being close to bright, sunny windows 😎.
Place it less than 1ft from a south-facing window to maximize the potential for growth.
Cardinal Flower does not tolerate low light 🚫.
Houston, Texas currently has medium levels of sunlight intensity, you can help this plant grow by treating it to ample light ☀️.

How to fertilize Cardinal Flower

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 Cardinal Flower after it doubles in size or once a year—whichever comes first.

Cardinal Flower is generally considered an easy-to-care-for plant and makes a great choice for beginners!
Water Needs
Cardinal Flower 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
Cardinal Flower 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
Cardinal Flower is not safe to consume. If you, a family member, or a pet has ingested any amount of plant material contact Poison Control, US (800) 222-1222, or your veterinarian. If you have children, cats, or dogs in the home, we suggest keeping this plant out of reach.
Soil
Cardinal Flower 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
Cardinal Flower grows vertically and new growth will emerge from the top of the plant.
Growing Outdoors
USDA Hardiness Zone
Cardinal Flower can be grown outdoors in USDA Hardiness Zones 3a-9b. Find your local hardiness zone here.
Propagation
Cardinal Flower can be propagated by the leaf method. To propagate:
- Remove a leaf by gently twisting until it pops off.
- To get the leaf to root, you can either:
- Place the leaf in water until roots emerge and are ~2” long and then transplant into well-draining soil, or
- Place the leaf directly into well-draining soil
Care Summary for Cardinal Flower
Cardinal Flower
Greg recommends:

0.5 cups every 9 days

< 1ft from a window

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