Plant Care Blue Vervain

Blue Vervain

Also known as

Swamp verbena and American vervain

Taxonomy

Verbena hastata
Verbena
Verbenaceae
Lamiales

How to care for Blue Vervain

💦 Water

How often to water your Blue Vervain

Water needs for Blue Vervain
0.5 cups
every 9

Blue Vervain 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.

Calculate water needs of Blue Vervain

Water 0.5 cups every
9

Does your plant get direct sunlight?

Select the pot size

5"
☀️ Light

Finding light for Blue Vervain in your home

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

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

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

Blue Vervain does not tolerate low-light 🚫.

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

🪴 Nutrients

How to fertilize Blue Vervain

Nutrient, fertilizer, and repotting needs for Blue Vervain: 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 Vervain after it doubles in size or once a year—whichever comes first.

💡 FAQs
⭐ Difficulty Level

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

How to Grow Blue Vervain →

Benefits of Growing Blue Vervain →

Common Blue Vervain Problems →

Outdoor Care Guide for Blue Vervain →


💦 Water Needs

Blue Vervain 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.

Blue Vervain Water Frequency →

Blue Vervain Root Rot →


☀️ Sunlight Needs

Blue Vervain 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 🏡.

Blue Vervain Light Requirements →

Blue Vervain Direct Sunlight Needs & Tolerance →


🐶 🐈 👶 Toxicity

Blue Vervain is not known to cause harm to humans or pets. Regardless, if you, a family member, a cat, or dog has ingested any plant material, please consult a doctor or a veterinarian.

Is Blue Vervain Edible? →

Blue Vervain Toxicity to Cats →

Blue Vervain Toxicity to Dogs →

Blue Vervain Toxicity to Humans →


🪴 Soil

Blue Vervain 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!

Best Soil Mix for Blue Vervain →

Best Pots for Blue Vervain →

When and How to Successfully Repot Blue Vervain →

What Are Healthy Blue Vervain Roots →


💩 Fertilizer

Blue Vervain should be repotted after it doubles in size or once a year, whichever comes first. Fresh potting soil has all the nutrients your plant needs, so as long as it’s refreshed yearly, you shouldn’t need to use fertilizer. Remember, plants get their energy from sunlight, not fertilizer!

How Much and When to Fertilize Blue Vervain →


⬆️ ⬇️ Growth Pattern

Blue Vervain grows vertically and new growth will emerge from the top of the plant.

Blue Vervain Lifecycle →

Blue Vervain Size Guide →

How and When to Prune Blue Vervain →


🌦️ Growing Outdoors
🌱 Propagation

The seeds of Blue Vervain can be used to grow new plants! After your plant flowers, any seeds that formed can be collected and germinated in potting soil.

How to Propagate Blue Vervain →


🍂 Yellow Leaves

Yellow leaves aren’t always a reason to panic, and can be a normal part of a plant’s life cycle. Unless brand new leaves are turning yellow or all the leaves change color at once, it’s likely just your plant shedding old leaves.

Overwatering and root rot are the most likely cause of problems in Blue Vervain, since they are sensitive to wet soil. The leaves may also appear to be curling or drooping. Less often, yellow leaves are caused by underwatering, nutrient deficiencies, or pests.

Replace soggy soil with fresh, dry soil and download Greg to make sure your plant never gets overwatered again!


🧐 Troubleshooting

When troubleshooting a sad-looking houseplant, start by checking for signs of distress in its leaves, such as yellowing, browning, or drooping, which can indicate overwatering or nutrient deficiencies.

Inspect the soil moisture; too dry or too wet soil can cause problems.

Ensure the plant is getting the right amount of light, as too much or too little can stress it.

Finally, consider environmental factors like temperature and humidity, and adjust care routines accordingly to revive your plant.


Care Summary for Blue Vervain

Blue Vervain

Blue Vervain


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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