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Lychnis 'Chalcedonica' - Seeds



Catalogue Code: 30211071

Sale price

In stock

Regular price £2.49
You can’t miss Lychnis chalcedonica in summer with its domes of glowing scarlet flowers on tall, stiff stems, adding vibrant colour to borders. This pollinator-friendly perennial is ideal for damp soils.

Pack Contents: 200 Seeds

Height: 100cm


  • Clusters of vivid scarlet flowers on tall stems
  • Ideal for damp soils
  • Pollinator-friendly
  • Good cut flower

You can’t miss Lychnis chalcedonica in summer with its domes of glowing scarlet flowers on tall, stiff stems, adding vibrant colour to borders. This pollinator-friendly perennial is ideal for damp soils and pondside planting. Regular deadheading will keep it flowering all through summer. It also makes a striking cut flower in arrangements. Lychnis chalcedonica holds the RHS Award of Garden Merit.

Sow indoors

Level fill a module tray with seed compost firming with the base of another tray. Water well with a fine rose. Sow seeds individually over the surface and gently press down. Place in a propagator at 20-25°C or cover tray with cling film and leave in a warm room. Don't exclude light, and allow 2-3 weeks for germination.

Grow on

When shoots appear, remove cling film or ventilate propagator. Keep seedlings in a light position, but shade from direct sunlight. Grow on in a minimum temperature of 10°C.

Harden off/plant out

Gradually accustom plants to outside conditions for 2-3 weeks before planting out when risk of frost has passed. Allow 30cm between plants. Water well until established. Suitable for sun or part-shade in damp soils.


Deadhead regularly to prolong flowering and prevent unwanted self-seeding. In autumn, cut back to just above ground level.


Growing Calendar

J Jan F Feb M Mar A Apr M May J June J Jul A Aug S Sep O Oct N Nov D Dec
Sow Indoors


We know how important your garden is to you. We've listened to our customers and introduced a new improved speedy delivery service, meaning Express delivery comes as standard.

*Orders to Northern Ireland have an automatic additional £3.00 delivery surcharge applied at checkout. 

Order TypeDelivery ChargeDelivery Charge
Seed only order£2.49If you purchase any other items you'll be charged the standard delivery rate of £5.99
Plants, bulbs & gardening accessories£5.99If we need to split your order into separate deliveries we'll only charge one delivery fee
Extra large or long plants & heavy items£9.99These are clearly displayed at check-out
Compost (and any other large or heavy items)£5.99

These items are subject to a delivery multiplier where orders containing 3 or 4 items will be subject to an additional £5.99 for every further 2 items added. This is automatically applied at check-out:

  • 1 - 2 bags £5.99
  • 3 - 4 bags £11.98
  • 5 - 6 bags £17.97
  • 7 - 8 bags £23.96
  • 9 - 10 bags £29.95

If you'd like more than 10 bags of compost please call our Customer Service team who can arrange for a bespoke competitive quote on 01480 774555 (standard network charges apply)

For more detail on specific delivery queries and compost delivery please click here

Delivery to outside of Great Britain

We regret we are unable to deliver any items outside of some Great Britain delivery addresses. This includes Europe, Channel Islands, Republic of Ireland, USA and Rest of World. We will update our website if this changes. 

We now deliver to Northern Ireland, additional delivery surcharges automatically apply at checkout. 

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