Plant Care Blue Waxweed

Blue Waxweed

About Blue Waxweed

Blue Waxweed is a super rare houseplant 🌿 that is easy to grow and needs regular watering to thrive. They do best in long-lasting, direct light ☀️ and should be less than 1 foot from a window.

Blue Waxweed likes soil that is well draining. Your plant shouldn't need added fertilizers if you repot each time it doubles in size.

Blue Waxweed belongs to the Cuphea genus, and is native to the Eastern and Central United States.


Cuphea viscosissima

Also known as

blue waxweed, clammy cuphea and "tarweed"

How to care for Blue Waxweed


How often to water your Blue Waxweed

Water needs for Blue Waxweed
0.5 cups
every 9

Blue Waxweed 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

Does your plant get direct sunlight?

Select the pot size


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 Blue Waxweed in your home

Light needs and placement for plant Blue Waxweed: 1ft from a window
1ft or less from
a window

Blue Waxweed love being close to bright, sunny windows 😎.

Place it less than 1ft from a south-facing window to maximize the potential for growth.

Blue Waxweed does not tolerate low-light 🚫.

Select your region to see how the current weather in your area affects the placement of Blue Waxweed in your home 🏡.


How to fertilize Blue Waxweed

Nutrient, fertilizer, and repotting needs for Blue Waxweed: repot after 2X growth

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 Blue Waxweed after it doubles in size or once a year—whichever comes first.

Difficulty Level

Blue Waxweed is generally considered an easy-to-care-for plant and makes a great choice for beginners!

Water Needs
Sunlight Needs
Growth Pattern
Growing Outdoors

Care Summary for Blue Waxweed

Blue Waxweed

Greg recommends:


0.5 cups every 9 days


< 1ft from a window


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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