United States Edition

Verbena      

Verbena bonariensis

Verbena is part of the Verbena genus. Its scientific name is Verbena bonariensis.

Please note: this may be considered a noxious or invasive plant. This plant is on the invasive plant watchlist for Washington State, USA so please take care when planting.
Tall spindly stems, topped with a pompon of tiny violet flowers

Blooms typically mature to a diameter of 0.4 cm (0.16 inches imperial) and produce a floral fragrance, whilst displaying in these approximate colours:   Electric purple and   Munsell purple and   Violet. The mature flowers take a clustered form, with an approximate petal count of 5. Leaves appear approximately as a   Sap green and   Dark spring green colour. It is a flowering non-edible herb / ornamental that typically grows as an annual/perennial, which is defined as a plant that can matures and completes its lifecycle over the course of one year or more. Verbena normally grows with a forb habit to a mature height of 1.20 metres (that's 3.90 feet imperial). This plant tends to bloom in mid summer. This plant is a great attractor for butterflies and bees, so if you are looking to attract wildlife Verbena is a great choice.

Verbena is normally fairly low maintenance and is normally quite easy to grow, as long as a level of basic care is provided throughout the year. Being aware of the basic soil, sun and water preferences will result in a happier and healthier plant.

This plant info is provided by the myfolia gardener's wiki. All details about Verbena have been kindly provided by our members.

How to grow Verbena

  • Full Sun

    OR +
  • Partial Sun

    +
  • Low

If verbena plants get leggy, simply trim the stems with sharp scissors. Cutting back prompts repeat flowering.1

Try to plant in a location that enjoys full sun / partial sun and remember to apply water fairly sparingly. Use Zone 7 - Zone 10 as your guideline for the appropriate climate for this plant. Keep in mind when planting that Verbena is thought of as half hardy, so it will need cloching or fleece protection when the temperature dips.

Growing Verbena from seed

This plant readily self-seeds, and can quickly grow out of control in an area. Prevent this by dead heading constantly from blooming, to when the plant dies down/goes dormant.
Easy to germinate, pot up individually when leaves are large enough to handle.

Look to ensure a distance 1.24 feet (38.0 cm) between seeds when sowing - bury at a depth of at least 0.2 inches (0.5 cm) deep. Soil temperature should be kept higher than 12°C / 54°F to ensure good germination.

By our calculations*, you should look at sowing Verbena about 49 days before your last frost date .

Transplanting Verbena

Using a trowel dig holes 10 in. apart and as deep as the flat. Add water to the holes. Water plan ts in flat and remove with trowel. Loosen any matted roots on plants and set in holes at the same level they grew in the flat. Firm soil to eliminate air pockets. Water entire area using a hose with a nozzle. Water deeply, but keep blooming plants on the dry side rather than wet.1
Choose a place towards the back of the border as the stems are very tall

Ensure that temperatures are mild (minimum night temperatures should be around -15°C / 5°F) and all chance of frost has passed before planting out, as Verbena is a half hardy plant.

Companion plants for Verbena

These plants have been known to grow well alongside Verbena so consider planting:

Repellent plants for Verbena

These plants will not grow well with Verbena so avoid planting these within close proximity:

Common Verbena problems

These problems, diseases and pests are known to affect Verbena plants:

Verbenas may suffer from powdery mildew. Good air circulation helps retard the spread of fungal spores, and fungicide sprays will help protect new growth.1

Other names for Verbena

Purpletop vervain

Verbena patagonica

Misspellings: Verbana

Latest Verbena Reviews

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Verbena care instructions

How long does Verbena take to grow?

These estimates for how long Verbena takes to sprout, grow and harvest are from real observations from real gardeners, right around the world. Start logging and journaling your observations to participate!

When should I plant Verbena?

Our when to plant Verbena estimates are relative to your last frost date. Enter your frost dates and we'll calculate your sowing and planting dates for you!

Footnotes

fn1: Gardening Made Easy

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