Pelham GardensGrow What Matters

Oregano

A tough Mediterranean perennial that rewards poor soil and full sun with the strongest flavour. Spreads readily once established, and its flowers are a genuine magnet for bees.

Written by Yemi · Last reviewed August 2026

Maturing this month
First sprouts in 10-14 days at 18-20°C

Difficulty

Oregano

Oregano should be ready to harvest this month. Check for size and colour.

Growing Calendar

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Sow
Transplant
Harvest

This month: Sep

Log to journal

Ready to harvest now

  • Check size and ripeness
  • Harvest regularly
  • Store or use fresh

Sowing Guide

What you'd find on the seed packet

Sow Depth

Very fine seed, sow on the surface and press in lightly, do not bury

Spacing

25-30cm

Germination

10-14days at 18-20°C

Thinning

Thin to one strong seedling per station

Grower's Note

Named oregano cultivars won't come true from seed, if a specific variety or flavour matters, propagate by division or cuttings instead.

Recommended Varieties

'Compactum' is a low, dense form well suited to edging or a container. Golden oregano ('Aureum') has bright yellow-green foliage, valued as much for its look as its milder flavour.

Planting Out Guide

Best spaces, conditions and how to plant out

Plant Spacing

25-30cm

Best Grown In

Raised beds, gravel gardens, containers, herb borders

Conditions

Full sun. Poor to average, free-draining soil, avoid rich or heavily fed ground.

Grower's Note

Spreads by underground runners once established, divide every few years to keep it in check and maintain vigour.

Growing Stages

Approximate weeks from sowing to harvest

Sprouting

2wks

Seeds germinate and first leaves emerge. Keep warm and moist.

Establishing

6wks

Root system develops and plant builds structure. Pot on if needed.

Maturing

10wks

Plant reaches full size and begins producing. Harvest at peak.

Total~18 weeksfrom seed to harvest

Climate Control

Today

C

Humidity

%

Water

Every 3–4 days

Sunlight

6+ hours direct sun

Watch Out For

Rich, moist soil produces lush but weakly flavoured leaves: keep it lean and dry for the strongest culinary oregano

Waterlogged soil over winter causes root rot, even in hardy Origanum vulgare: ensure sharp drainage, especially in containers

Some less common Origanum species aren't reliably hardy in colder parts of the UK: stick to common oregano (O. vulgare) if winter losses are a concern

What You'll Need

Equipment for growing oregano

Modular Seed Tray

96-cell for precision sowing

Fine Rose Watering Can

Gentle shower for seedlings

Bamboo Canes

Pack of 20 × 120cm

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Grown Organically

Every method in this guide works with natural systems: no synthetic chemicals, no shortcuts.

Read our approach

Common Questions

About growing Oregano in the UK

Why does my oregano have no flavour?

Oregano grown in rich, well-fed, moist soil produces lush leaves with a much milder flavour. For the strongest flavour, grow it lean: poor soil, full sun, and minimal feeding or watering once established.

Is oregano the same as marjoram?

They're closely related but not identical. Oregano (Origanum vulgare) has a stronger, more pungent flavour and is hardier; sweet marjoram (Origanum majorana) is milder and sweeter but far less frost-hardy in the UK, and is usually grown as an annual.

Does oregano come back every year?

Yes, common oregano (Origanum vulgare) is a hardy perennial in most of the UK and dies back in winter before regrowing in spring. Waterlogging rather than cold is what usually kills it, so sharp drainage matters more than shelter.

How do I stop oregano taking over?

Oregano spreads by underground runners and can form a dense patch over a few seasons. Lift and divide the clump every 3-4 years in spring, replanting only the vigorous outer sections and discarding the woody centre.

Written from real growing experience, not just research. Read the story behind Pelham Gardens.

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