Species

Lysimachia punctataYellow Loosestrife

perennial

Alexander Loosestrife

Lysimachia punctata 'Alexander'

The Story

Plant Bio

A perennial with bright yellow flowers that bloom in whorls.

The cultivar 'Alexander' has variegated leaves with a striking creamy-white edge.

Uses & Benefits:

Bright yellow foliage adds vibrant color to shaded areas.

Acts as a low-maintenance groundcover that suppresses weeds.

Provides nectar for pollinators and habitat for beneficial insects.

SpeciesLysimachia punctataYellow Loosestrife

Essentials

At a Glance

Plant Type

Perennial

Height

30 inches

Width

30 inches

Light

Full Sun, Partial Sun

Zones

4, 5, 6, 7, 8

Water

Medium to wet

Humidity

Average to high

Lifespan

Perennial

Native To

Europe and Asia

Toxicity

Non-toxic to humans and pets

Bloom period

Mid-summer – Late summer

In flower about 2 months of the year

Planting

How to Grow

Tuck seeds into moist soil in early spring for best germination.
Water regularly to keep soil evenly moist during growth.
Apply a balanced fertilizer monthly during the growing season.
Prune lightly after flowering to encourage bushy growth.
Divide clumps every 2-3 years in early spring or fall.
Mulch around plants to retain moisture and suppress weeds.

Pro Tip

Ensure well-draining soil and partial shade for optimal growth.

Keep It Thriving

Care Guide

Do

Water consistently to keep soil moist 🌱
Prune after flowering to maintain shape
Apply organic mulch to conserve moisture

Don't

Avoid overwatering to prevent root rot ❌
Don’t fertilize in late fall
Never neglect pruning to prevent legginess

Seasonal Care Calendar

Task	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Divide
Pest Check
Prune
Winter Prep

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Vivid perennial borderGroundcover with bright foliageShady woodland garden accent

Companion Plants

HostaFerns AstilbeJapanese painted fern Heuchera

Multiply

Propagation Methods

Good to Know

Common Questions

Alexander Loosestrife questions

What zones can Alexander Loosestrife grow in?

Alexander Loosestrife is hardy in USDA Zones 4–8. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.

Is Alexander Loosestrife deer resistant?

Yes — Alexander Loosestrife is rated deer-resistant. Deer typically pass it over, though extreme hunger can override any plant's defenses.

When does Alexander Loosestrife bloom?

Alexander Loosestrife typically blooms in mid-summer through late summer. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.

Does Alexander Loosestrife need full sun?

Alexander Loosestrife does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.