Anagallis tenella (now often listed as Lysimachia tenella), known as bog pimpernel, is a tiny UK native that forms a low mat of small, rounded leaves. From June to September it is covered in pale pink, finely veined flowers that open fully in sunshine.

Bog pimpernel at a glance

Botanical name Anagallis tenella (syn. Lysimachia tenella)
Common name Bog pimpernel
Plant type Low, creeping, semi-evergreen perennial
Height and spread Up to 10 cm tall, spreading up to 50 cm
Flowers Small, pale pink with darker veins, June to September
Position Full sun
Soil Very wet, low-nutrient, acid to neutral soil
Pond depth 0–10 cm, or very wet soil at the pond edge
Hardiness Hardy (no RHS H-rating for the species); may be short-lived in severe winters
Native to UK and Ireland (native wild flower)

Where to plant bog pimpernel

  • Bog gardens with wet, acid, low-nutrient soil
  • The very edge of a wildlife pond, up to 10 cm deep
  • Wet, sandy or peaty ground

How to plant and care for it

Plant in spring in full sun and keep it wet at all times. It dislikes rich soil and fertiliser, so do not feed it. It is delicate and can be short-lived, so let it creep into new ground where it can.

Which size should I buy?

Bare-root plants (7 cm, 9 cm, 1 litre and 3 litre) arrive without a pot or compost and are the most economical way to plant a group. Potted plants (9 cm, 1 litre and 3 litre) arrive growing in our peat-free compost and give a faster display. Packs of 3 cost less per plant. The 2x Pot & Compost option is two plants supplied with pots and compost.

Pond depth: 0 - 10cm

Light: Full sun

Hardiness: Hardy

Height and spread: 0 - 10cm tall, 30 - 50cm wide

Planting and flowering months are shown in the calendar under the photos.

Bare root (7 cm, 9 cm, 1 litre, 3 litre): plants sent without a pot or compost, ready to plant straight away. The most economical way to plant a group.

Potted (9 cm, 1 litre, 3 litre): plants growing in our recycled, peat-free compost made in Lincolnshire. Larger sizes give a faster display.

Pack of 3 (7 cm bare-root, 9 cm bare-root, 1 litre bare-root, 3 litre bare-root): three plants of the chosen size at a lower price per plant.

2x Pot & Compost: two plants supplied with pots and compost.

Sizes shown with a line through them are currently unavailable.

At Lincs Plants, we strive to provide fast and reliable shipping to ensure your plants arrive in perfect condition. We offer 1-3 day shipping through a variety of dispatch methods to suit your needs.

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