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UK Delivery 95p. Free On Orders Over £12.50

Pennyroyal Seeds

Botanical - Mentha pulegium


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

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650 Seeds.

Other Names - European Pennyroyal, Penny-Royal, Pudding Grass…

Pennyroyal is a highly aromatic herb with strong peppermint - like scented leaves. It has a creeping low growing habit making it an ideal fragrant ground cover. In late summer the plants produce attractive lilac - blue flowers which add colour and interest to the carpet forming plants. A low maintenance, easy to grow spreading plant ideal for growing at the front of herbaceous borders or in between pavers.

  • Easy to grow.
  • Vigorous and productive.
  • Adds a peppermint - like aroma to the garden.

Suitable For - Containers, vegetable plot, raised beds, flower borders, window boxes, hanging baskets, rock gardens, in between pavers

Sowing Months - February - May

Harvest - Flowering in August - October

Uses - Adds a delightful peppermint aroma to the garden, herbal insect repellent

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 Spreading habit Distance between plants 30 cm
Position Full sun, partial shade Distance between rows 30 cm
Average height 10 - 30 cm Direct Sowing
Average spread 50 cm Sowing distance between plants N/A
Hardiness Fully hardy Distance between rows N/A
Overwintering Yes Sowing depth Surface
Soil Ph   Germination temperature 15 to 20℃
Soil condition Moisture retentive soil RHS Bee friendly No
RHS Award winner No Days to germination 7 - 28 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 into the surface of the compost but do not cover.
Place in a propagator or clear plastic bag and seal. Germinate at the temperature suggested above. Do not exclude light as this will aid germination.
Once germination has started remove from the propagator or bag and place in a cooler but not cold location for a few days. Protect from frost.
When the seedlings are large enough to handle transplant into 7 - 10 cm pots.
Grow on in a frost free greenhouse or cold frame until the plants are growing strong and all risk of frost has passed.
Harden off over 7 - 10 days before planting out.

Direct Sowing

Germinate indoors for best results.

Growing On

Water the young plants well until established.
Pennyroyal will self seed easily. Dead head fading blooms to prevent self seeding if preferred.
Water established plants well in dry weather.


Consuming Pennyroyal - This herb is mostly used when dry however before consuming any part of pennyroyal please consult with a qualified herbal practitioner for advice.


Pennyroyal should NEVER be consumed by pregnant women.

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.

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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.