Seed Swaps


Verbena bonariensis

  • 100 plantings
  • 2 for swap
  • 17 wanted
  • 35 stashed

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.1 Attracts butterflies.1

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

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

  • Partial Sun

  • Low

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

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.

See our list of companion Plants for Verbena to see which plants you should plant in close proximity to encourage growth.

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 plants 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.

Choose a place towards the back of the border as the stems are very tall.1 Also nice as a ‘see through’ plant between walkways.1

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.

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!

Days to Germination How long does it take Verbena to germinate?
23 days

Average 23 days | Min 10 days | Max 98 days (6)

Days to Transplant How long until I can plant out Verbena?
+ 68 days

Average 68 days | Min 58 days | Max 85 days (2)

Days to Maturity How long until Verbena is ready for harvest / bloom?
+ 22 days

Average 22 days | Min 6 days | Max 521 days (5)

Total Growing Days How long does it take to grow Verbena?
= 113 days

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!

When to sow The number of days to sow Verbena before or after your last frost date.
49 days before Last Frost Date

Other names for Verbena

Purpletop vervain, purpletop verbena,

Verbena patagonica

Misspellings: Verbana, verbeena, verbeenah, verbenah

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