Also known as Loosestrife · 615 gardener saves

Lysimachia: the varieties gardeners actually grow

Lysimachia, the genus most gardeners know as loosestrife. We track 20 varieties; these are the ones gardeners actually save and plant, ranked by real saves rather than catalog marketing. Each links to full care, bloom, and live price data.

20 varietiesZones 4–10Mostly full sun

The 12 most-saved Lysimachia varieties

Of 20 in the catalog — ordered by how many gardeners actually grow them.

Browse all 20 Lysimachia varieties →

How to grow Lysimachia

What the Lysimachia varieties in our catalog actually agree on — drawn from the care records of the 20 most-grown of them, not from a generic template.

The Lysimachia year

  • DivideMarch and September85% of varieties

    Divide every 2-3 years to control spread or rejuvenate clumps

  • PruneJune–August75% of varieties

    Cut back runners or shape lightly after flowering finishes

  • Spring CleanupFebruary and March75% of varieties

    Clear away old foliage debris before new growth begins

  • PlantMarch, April, September and October70% of varieties

    Plant in spring or early fall for best establishment

Do

  • Mulch to conserve moisture
  • Water consistently to keep soil moist 🌱
  • Prune after flowering to maintain shape
  • Water regularly during dry spells 🌱
  • Prune to shape after flowering

Avoid

  • Avoid overwatering to prevent root rot ❌
  • Avoid overwatering in winter ❌
  • Avoid overwatering which can cause root rot ❌
  • Don’t fertilize in late fall

What goes wrong with Lysimachia

ProblemWhat you'll seeWhat to do
AphidsSticky residue and distorted leavesApply neem oil or insecticidal soap
Spider MitesWebbing on foliage and speckled leavesIncrease humidity and spray with insecticidal soap
SlugsHoles in leaves and slime trailsUse organic slug bait or hand-pick at night
Spider mitesWebbing and speckled foliageIncrease humidity and apply insecticidal soap
Root rotWilting and yellowing foliageImprove drainage and reduce watering
Powdery MildewWhite powdery coating on leavesImprove air circulation and treat with sulfur fungicide
Root RotWilting and blackened rootsEnsure well-draining soil and reduce watering

Making more Lysimachia

Division

  1. Dig up mature plants in early spring.
  2. Divide clumps with a sharp knife or spade.
  3. Replant divisions immediately in prepared soil.
  4. Water thoroughly after planting.
  5. Allow 6 weeks to establish.

Cuttings

  1. Select healthy semi-hardwood stems in late summer.
  2. Dip cut end in rooting hormone and plant in moist soil.
  3. Maintain high humidity and keep in indirect light for 6 weeks.

Lysimachia questions

How many types of Lysimachia are there?

The Sow catalog tracks 20 distinct Lysimachia varieties. The most popular — ranked by 615 real gardener saves — are shown first above.

What zones does Lysimachia grow in?

Across its varieties, Lysimachia covers USDA Zones 4–10. Individual varieties differ — each plant page lists its exact range, and Sow filters the catalog to your zone automatically.

When does Lysimachia bloom?

Most Lysimachia varieties bloom in late spring to early summer, summer, mid-summer. Staggering early, mid, and late varieties extends the genus's season in one bed.

Which Lysimachia should I choose?

Start from the most-saved varieties above — popularity across thousands of gardens is a strong signal of reliability — then filter by your zone and sun. In the Sow app you can preview any of them in a photo of your actual yard before you buy.

Keep exploring

Design with Lysimachia in your own yard

Snap a photo of your space and see these varieties planted in it — sized correctly, matched to your zone, with care reminders included.

Download Sow on the App StoreGet Sow on Google Play