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How to grow hyssop, Hyssopus officinalis

How to grow hyssop

All you need to know about growing hyssop, Hysoppus officinalis, in our Grow Guide.

A table displaying which months are best to sow, plant and harvest.
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Sow
Sow

Do not Sow in January

Do not Sow in February

Do not Sow in March

Do not Sow in April

Do not Sow in May

Do Sow in June

Do Sow in July

Do Sow in August

Do not Sow in September

Do not Sow in October

Do not Sow in November

Do not Sow in December

Flowers
Flowers

Plant does not flower in January

Plant does not flower in February

Plant does not flower in March

Plant does not flower in April

Plant does not flower in May

Plant does not flower in June

Plant does flower in July

Plant does flower in August

Plant does flower in September

Plant does flower in October

Plant does not flower in November

Plant does not flower in December

  • Plant size

    60cm height

    1m spread

  • Average Yield

    Pick leaves as required

Hyssop, Hyssopus officinalis, is a semi-evergreen shrub in the mint family, yet is less commonly grown than other culinary herbs. It was particularly popular during the Middle Ages, used as a flavouring in soups and stuffings. Now it’s more commonly used in the distillation of certain liquors and to give the famous green colour to absinthe. However, it’s ideal for using in hearty stews and goes well with meat such as lamb or chicken. Its leaves have a strong flavour so only a few are required when cooking. It makes a good alternative to sage.

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Hyssop can be used to make a tea which is an excellent tonic for a cough or a cold, but should be avoided if you’re pregnant.

Hyssop bears spikes of blue flowers that are particularly attractive to pollinators. It’s popular with beekeepers as it’s said to make excellent honey.

How to grow hyssop

Hyssop grows best in full sun, in moist but well-drained soil.  Prune in early spring to encourage bushier growth into the summer.


Where to grow hyssop

Hyssop growing with verbena and salvia
Hyssop growing with verbena and salvia

Hyssop works well in borders and as an edging plant. It will also grow well in a pot – just make sure the pot is large enough to contain its large root system.


How to care for hyssop

Prune hyssop plants as growth starts in early spring, to encourage the plants to bush out.

Watch our Golden Rules video on how to care for garden herbs:


How to propagate hyssop

Saving hyssop seed
Saving hyssop seed

It’s easy to grow hyssop from seed – simply sow indoors or directly into the ground after the last frost. Seeds will take 14-21 days to germinate.  You can also take softwood cuttings in summer.


Growing hyssop: problem solving

Hyssop is relatively trouble-free and easy to grow.


How to harvest and store hyssop

Harvesting hyssop leaves
Harvesting hyssop leaves

It’s best to use hyssop leaves when fresh but you can also dry or freeze them. Harvest the leaves in the morning, after any dew has dried. Cut stems of leaves and gather into bunches, hang in a dark and well ventilated area. You can also strip the leaves from their stems, place in a plastic bag and freeze.


Advice on buying hyssop

  • Always make sure you buy healthy plants, free from signs of disease or pests
  • Bear in mind that hyssop sold by nurseries may not be ready to harvest immediately, compared to herbs available from supermarkets

Where to buy hyssop


Hyssop varieties to grow

Hyssopus officinalis
Hyssopus officinalis
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  • Hyssopus officinalis ‘Roseus’ –  Dense spikes of small pink flowers. Height x Spread: 80cm, spread 90cm
  • Hyssopus officinalis f. albus – Spikes of small white flowers. H x S: 80cm, spread 90cm
  • Hyssopus officinalis subsp. aristatus – small dark blue flowers on compact plants. H x S: 30cm, spread 45cm