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Comfrey Seeds - Russian Strain (Symphytum Officinale)

Botanical - Symphytum


Seed Count:
30 Seeds
Usually despatched within 24 hours
See "Delivery Charge" tab below
Current Stock:
Out of stock
Price £1.90

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Please check back at a later stage.

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30 Seeds.

Other Names - Comphrey…

Comfrey 'Symphytum Officinale' is an invaluable plant in the garden especially for the organic gardener. The easy to grow productive perennial produces large quantities of deep green hairy leaves with attractive purple - blue bell shaped flowers which bees find irresistible. Growing comfrey in the garden has many benefits. The strong deep roots draw invaluable nutrients from deep within the ground, nutrients which would normally be out of reach to most garden plants. The liquid fertilizers made from the comfrey leaves which contain these nutrients generally have higher nitrogen, phosphorus and potash levels than most bought fertilizers. This highly nutritious liquid feed is especially good for feeding plants such as tomatoes, peppers, aubergines and beans, however any vegetable or fruit plant that needs a pick me up will benefit from a comfrey liquid feed. The leaves can also be used as a nutritional mulch or as a compost activator.

  • Makes an excellent organic liquid fertilizer.
  • Very productive - harvest several times a season.
  • A multi use herb - fertilizer, mulch, compost activator.

Suitable For - Containers, vegetable plot, raised beds, flower borders, wildlife gardens, wild flower garden

Sowing Months - March - June

Harvest - When the plants are well established and growing strong.

Uses - Leaves used to make liquid fertilizer, a compost accelerator, nutritional mulch. Flowers attract bees

Soil Preperation

Add some well rotted manure or compost to the soil a few weeks before sowing. If the soil is heavy clay or the drainage is poor mix in a generous amount of sand and gravel to the soil also. Remove any weeds from the area.

General InformationSowing & Planting Information
Habit Perennial Module Grown & Transplants
Type   Distance between plants 60 cm
Position Full sun, partial shade Distance between rows 90 cm
Average height 80 - 150 cm Direct Sowing
Average spread 60 - 100 cm Sowing distance between plants 60 cm
Hardiness Fully hardy Distance between rows 90 cm
Overwintering Yes Sowing depth 5 mm indoors, 10 mm direct sowing
Soil Ph   Germination temperature 18 to 24℃
Soil condition Moderately fertile, well drained soil RHS Bee friendly No
RHS Award winner No Days to germination 14 - 30+ days

Sowing Guide

Early Sowing/Module Sowing

Sow the seeds thinly in moist compost in trays, modules or pots.
Place in a propagator or clear plastic bag and seal. Germinate at the temperature suggested above.
Once germination has started remove from the propagator or bag and place in a cooler but not cold location. Protect from frost.
When large enough to handle transplant into 7 - 10 cm pots.
Grow on in a frost free greenhouse or cold frame.
Plant out when all risk of frost has passed, harden off over 7 - 10 days before planting out.

Direct Sowing

Direct sow 2 - 3 seeds per station in rows 90 cm apart. Each station should be 60 cm apart.
Water well.
When the seedlings are large enough to handle thin the seedlings to one strong seedling per station. The thinning's can be discarded or transplanted elsewhere if preferred.

Growing On

Water young comfrey plants well until established.
Established plants will need watering frequently in dry conditions.
In early spring apply a thick layer of well rotted manure to the comfrey bed.
To prevent overcrowding and to maintain vigour the plants will benefit from being divided every 2 years in early spring.


Comfrey plants can be harvested up to 4 times throughout the summer months. Simply cutting the foliage down to 10 cm above ground level with garden shears. The cut leaves can be used as a mulch or as a compost accelerator.
To make comfrey fertilizer, chop up any large sized leaves, remove flowers or tough stems. Pack the freshly cut leaves tightly into a plastic container with a lid. Weight the leaves down with a brick if the tightly packed leaves do not fill the container. Add a little water. The more water added at this stage the less potent the raw fertilizer and the less it will need diluting.
Fit the lid. The lid will help to keep down the smell of the leaves as they break down. Check the progress every few weeks. As the leaves break down they will produce a dark brown smelly liquid. The process should take 3 - 4 weeks. For a continuous supply of comfrey fertilizer over the summer months simply top up the bucket with freshly cut comfrey leaves every week or after collecting the dark liquid fertilizer.
Store the rich undiluted fertilizer in a cool dark place until needed. The comfrey liquid will need to be diluted with water before feeding to the plants. The aim is to end up with a liquid fertilizer the colour of weak tea.
If very little water was added at the beginning, the comfrey liquid will be dark brown to black in colour and the ratio should be 1 : 20 (1 part comfrey to 20 parts water). If however more water was added at the beginning the comfrey liquid may look more like cola and should be diluted 1 : 10 (1 part comfrey to 10 part water)
Add a little water. The more water added at this stage the less potent the raw fertilizer and the less it will need diluting.


Comfrey may be harmful if eaten. Use gloves when harvesting as the leaves can irritate the skin and eyes.

Delivery Information

All products on this website are for delivery to the UK only.

(Including Northern Ireland, the Highlands & Islands, Scilly Isles, Channel Isles and the Isle of Man). Delivery charges to these areas are the same as UK mainland stated below (with no additional surcharge). Delivery however may take longer than the times stated due to weather, distance etc.)

FREE DELIVERY on all orders over £9.98

When applicable, free 2nd class delivery will be automatically calculated at checkout.

STANDARD DELIVERY - Royal Mail 2nd Class (3 - 5 working days) - £0.95

For orders under £9.98, the "Standard Delivery" charge will be added automatically at checkout.

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