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UK Delivery 95p. Free On Orders Over £12.50

Hyssop Seeds

Botanical - Hyssopus officinalis


Seed Count:
260 Seeds
Usually despatched within 24 hours
See "Delivery Charge" tab below
Price £1.38

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260 Seeds.

Other Names - Blue Hyssop…

Hyssop is an attractive perennial plant ideal for growing in the middle of the herb bed, containers or as a low hedge similar to lavender. In late summer it produces attractive spikes of deep blue flowers which bees, butterflies and hover flies find very attractive. The strong minty-sage flavoured leaves can be added to salads, soups, pork and fish dishes and should be used sparingly as the flavour can be intense.

  • RHS Perfect for Pollinators.
  • Popular with bee keepers.
  • Similar in appearance to rosemary and lavender.

Suitable For - Containers, vegetable plot, raised beds, flower borders, wildlife gardens, cottage gardens, rock gardens, patio's

Sowing Months - April - May

Harvest - As soon as established

Uses - Medicinal, low growing hedges, attracts bees and butterflies, leaves can be used sparingly in salads etc.

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 Distance between rows 60 cm
Average height 70 cm Direct Sowing
Average spread 100 cm Sowing distance between plants 60 cm
Hardiness Fully hardy Distance between rows 60 cm
Overwintering Yes Sowing depth Surface indoors, 2 mm direct sowing
Soil Ph   Germination temperature 14 to 20℃
Soil condition Well drained, sandy soil RHS Bee friendly Yes
RHS Award winner No Days to germination 14 - 24 days

Sowing Guide

Early Sowing/Module Sowing

Sow the seeds thinly on the surface of moist compost in trays, modules or pots. Lightly firm the seeds down into the compost but do not cover.
Place in a propagator or clear plastic bag and seal. Do not exclude light as this will aid germination. 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

Sow 3 - 4 seeds per station, 60 cm apart in rows 60 cm wide at the depth suggested above. The soil should be a fine tilth.
Water the newly sown seeds well.
Thin to one strong seedling per station.
The thinning's can be used to fill gaps or transplanted elsewhere in the garden.

Growing On

Water the young plants well until established.
Established hyssop plants need very little attention and should only require watering in very dry periods.


Harvesting of the young fresh leaves and stems can start when the plants are established and are growing strong.
The flowers are also edible and have a more delicate flavour.
The leaves can be dried or frozen for later use.
To dry, tie a small bunch of cuttings together. Hang upside down in a cool, dark, dry location with good ventilation.
The stems should be dry in 5 - 6 days. If left to dry for any longer this may effect the flavour.
When dry remove the leaves from the stems and store in an airtight container for up to 18 months. Crush the dried leaves as and when needed just before use.


Hyssop attracts bees, butterflies, hover-flies and other beneficial insects and is a popular flower in the wildlife garden and with beekeepers.

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.

FAST DELIVERY - Royal Mail 1st Class (1 - 2 working days) - £1.52

If preferred please select this delivery option at checkout.

For further information please visit our Delivery, Postage & Packaging page.

Returns & Refunds

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The 14 day cooling off period.

Under the 'Consumer Contract Regulation Act' you the consumer have the right to cancel a long distance order (such as a website order) at any time from the moment the order is placed up until 14 calendar days from the day after the goods are received.

So if for whatever reason you change your mind within this time and wish to return the goods, simply send us a 'Cancelation Form' (full details can be found on our Your Right to Cancel page). On receiving the undamaged goods back from you we will fully reimburse you with all payments received including the cost of standard delivery. You will however need to bear the cost of returning the goods back to us.

For full details please visit our Your Right to Cancel page.

Damaged, Incorrect or Missing Goods.

We want you to be 100% delighted with your purchase.

If however you receive goods that have been damaged, incorrect or missing, let us know within 72 hours of receiving the goods and we will either fully refund you (including postage costs), promptly send you a replacement or credit your Groseeds account, depending on your preference.

For full details, including how to contact us, please visit our Returns & Refunds page.

Faulty Goods.

We guarantee to supply you with the finest quality seeds in prime condition.

All products sold by Groseeds come with a 365 Days 100% Satisfaction Guarantee (from the date of purchase). For further information please visit our 12 Month Guarantee page.

If however within the 12 months you find the goods to be faulty please contact us ASAP so that we can resolve the issue promptly. Full instructions, including how to contact us can be found on our Returns & Refunds page.

We want you to be 100% satisfied with your purchase. Any issues will be dealt with promptly, courteously and efficiently.