American blue vervain (Verbena hastata)

American blue vervain (Verbena hastata) is a perennial plant that can grow 50cm – 1.5m tall and 50cm – 1.5m wide. In this growing guide we’ll learn the cultivation details and how to plant American blue vervain (Verbena hastata).

This plant has several common names including: American blue vervain, American simpler’s joy, blue vervain, ironweed or wild hyssop.

This is a deciduous plant that takes 1-2 years to reach full maturity.

Plant profile

Common name: American blue vervain, American simpler’s joy, blue vervain, ironweed, wild hyssop
Scientific name: Verbena hastata
Plant type: Perennials
Habit: Bushy
Height: 50cm – 1.5m
Spread: 50cm – 1.5m
Foliage: Deciduous
Sunlight: Full Sun
Soil: Chalk, Loam, Sand
Moisture: Moist but well drained, Well drained
Garden type: Architectural, City & Courtyard Gardens, Coastal, Informal Garden, Rock & Gravel Garden, Wildflower meadow
Planting type: Flower borders and bedding, Low Maintenance, Wall-side Borders
Other characteristics: Drought resistant

Seasonal colors

How to plant American blue vervain (Verbena hastata) – Dominicus Johannes Bergsma, CC BY-SA 3.0, via Wikimedia Commons

Perennial plants are one of the largest groups of plants.

They offer color, shape, fragrance and seasonal textures. The variety is such that there are plants to suit all sizes and styles of garden.

Traditionally, perennials are grown in borders, using a wall or hedge as a backdrop to bring out all their splendor during summer.

But since most gardens are not large enough for long borders dedicated exclusively to perennials, they are usually planted in mixed borders and beds, along with shrubs, annuals, biennials, and bulbs that extend the season of interest.

How to plant

In this section we will learn how to plant American blue vervain (Verbena hastata), know its needs in terms of soil, watering and sun exposure.

Soil

American blue vervain (Verbena hastata) is not a demanding plant regarding the type of soil and can grow in chalk, loam or sand.

• The chalky soil is pale and contains chunks of calcium-rich rock. It is a fertile and well-draining soil, almost always alkaline.

• The loam soil is dark, rich in organic matter but balanced in minerals. It offers the best of all worlds, retaining enough water for the plants, but allowing excess moisture to drain away. This is the most desired type of garden soil, perfect for most plants.

• Sandy soil is light, porous and very easy to drain. It is a soil poor in organic matter and nutrients. It is composed of relatively large mineral particles that allow water to drain quickly.

It is not very sensitive to soil acidity or alkalinity and grows well in soils with pH acid, alkaline or neutral.

Regarding drainage, Verbena hastata likes to grow in moist but well drained or well drained soils.

Sunlight

American blue vervain (Verbena hastata) should be grown in full sun places.

Cultivation profiles – Growing American blue vervain (Verbena hastata) – Cbaile19, CC0, via Wikimedia Commons