How big does Dotted loosestrife grow?

About 90 cm × 1 m after ten years (height × width).

What soil does Dotted loosestrife grow in?

It tolerates these soils: average garden soil, clay.

Is Dotted loosestrife hardy?

Hardy down to -34 °C (USDA zone 4, RHS H7). It gets through winter in every part of the country.

When does Dotted loosestrife flower?

Flowering: June–August, yellow.

How much water does Dotted loosestrife need?

Water need: medium. Drought tolerance: low.

How much does Dotted loosestrife cost?

It sells for roughly €3.90 to €12 in local shops, depending on size.

Dotted loosestrife

Lysimachia punctata

Dotted loosestrife (Lysimachia punctata) is a perennial that reaches 90 cm × 1 m after ten years. Light: full sun, part shade. Hardy down to -34 °C. Drought tolerance: low. Sold in local shops from about €3.90.

Illustration of Dotted loosestrife — An illustration of the typical shape of the mature plant, not a photo.

What it's good for, and what it isn't

A vigorous, upright perennial covered in bright yellow flowers for weeks in summer and asking for almost no care. It looks best in sun or part shade in moist, fertile soil: by a pond, in front of trees and shrubs or in a wild corner. It spreads fast by rhizomes and crowds out weaker neighbours, so plant it only where it has room or where you can hold it back with a root barrier or regular digging out.

Watch out for

The main problem is its spread: in moist, fertile soil it forms a large colony within a few years and moves into lawns and neighbouring perennials. In the dry summers of Central Europe it stays stunted and browns without watering. Rust and leaf spot can occur, and slugs and snails may feed on it.

Key facts

Light: Full sun, Part shade
Water need: Medium
Care: Medium
Size after 10 years: 90 cm × 1 m
Hardiness: down to -34 °C
Foliage: Deciduous
Flowering: J F M A M J J A S O N D June–August, yellow

Group	Perennial
Light	Full sun, Part shade
Size after 10 years	90 cm × 1 m
Ultimate size	0.6–1.2 m × 0.4–1 m
Hardiness	down to -34 °C (USDA 4, RHS H7)
Soil	Average garden soil, Clay
Foliage	Deciduous
Flowering	June–August, yellow
Water need	Medium
Drought tolerance	Low
Maintenance	Medium
Root aggressiveness	Low
Suckering	no data
Spreading	High
Distance from buildings	no data
Distance from paving	no data
Litter	not typical
Planting distance	50 cm
For dogs	no data
For cats	no data
For children	no data
Typical price	from about €3.90

Toxicity data is for information only. If your pet or child has eaten a plant, contact a vet or a doctor.

Sizes and prices available

The same plant is sold as a small pot and as a specimen several metres tall, and the price follows. Prices are rounded and for guidance only.

Size	Typical price
size not stated	approx. €3.90 – €12

Frequently asked questions

Data updated: October 13, 2026 · How our data is made

Appears in these lists

Ground cover plants Perennials for part shade Perennials for full sun Perennials that flower all summer Perennials for clay soil Perennials for pollinators

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