Repotting guide

When & how to repot Herrenhausen Oregano (Origanum laevigatum 'Herrenhausen')

Also called Herrenhausen Oregano, Ornamental Oregano, Herrenhausen Marjoram.

More about herrenhausen oregano

About Herrenhausen Oregano

Origanum laevigatum 'Herrenhausen' · also called Herrenhausen Oregano, Ornamental Oregano · flowering

Herrenhausen Oregano is a striking ornamental perennial grown for its wiry purple-flushed stems and long-lasting display of tubular pink flowers within deep purple bracts from midsummer through autumn. Strongly attractive to bees and butterflies. Drought-tolerant once established; thrives in poor, well-drained soil. RHS Award of Garden Merit holder.

Mature size: 45–60 cm tall (18–24 in), 30–45 cm wide (12–18 in)

How to tell herrenhausen oregano needs repotting

Repotting on a calendar is less reliable than reading the plant. For herrenhausen oregano, watch for these signs:

Roots growing out of the drainage holes, or the rootball lifting the plant proud of the rim.
Soil that has shrunk away from the pot sides and no longer holds water.
The pot is unstable because the plant has grown top-heavy.
Old, compacted, broken-down mix that stays wet too long — for a succulent that is a rot risk, so refresh it even if the pot size is fine.

For the underlying biology of a pot-bound root system and why it stalls a plant, see our guide to spotting and fixing a root-bound plant.

How often to repot herrenhausen oregano

Every 2–3 years, into bone-dry mix. Herrenhausen Oregano's growth habit — woody-based, clump-forming herbaceous perennial with upright wiry stems — sets the pace. Herrenhausen Oregano is a striking ornamental perennial grown for its wiry purple-flushed stems and long-lasting display of tubular pink flowers within deep purple bracts from midsummer through autumn. Strongly attractive to bees and butterflies. Drought-tolerant once established; thrives in poor, well-drained soil. RHS Award of Garden Merit holder.

What size pot to step herrenhausen oregano up to

Use a pot only one size up — or even the same pot with fresh gritty mix if the roots have room. Herrenhausen Oregano stores water and rots in a large pot of slow-drying soil. A tight terracotta pot that dries fast is far safer than a generous plastic one. Never up-pot a succulent by several sizes.

Not sure of the exact diameter? Our pot size calculator takes the current pot and root spread and tells you the right next size — it deliberately recommends a single step up, never a big jump.

The best time of year to repot herrenhausen oregano

Spring or summer, while herrenhausen oregano is in active growth and warm, is best — roots recover fastest then, and the plant is not sitting in cool damp soil. Avoid repotting a succulent in winter dormancy.

Step-by-step: repotting herrenhausen oregano

Repot dry. Do not water herrenhausen oregano for several days first. Working with dry roots and dry mix dramatically lowers the rot risk for a succulent.
Pick a snug, fast-draining pot. Choose terracotta one size up at most, with a drainage hole. Have gritty poor to moderately fertile, sharply well-drained, preferably alkaline soil ready.
Tip it out and clean the roots. Slide the plant out, crumble off the old soil, and trim any black, mushy or dead roots with clean snips.
Pot into dry mix. Set herrenhausen oregano at its original depth in dry gritty mix, firming gently. Do not bury the stem deeper than it was.
Wait a week before watering. Leave it completely dry and out of harsh sun for about 7 days so any damaged roots callus. Only then water lightly.

Aftercare

Keep herrenhausen oregano completely dry and out of fierce sun for about a week so any nicked roots callus before they meet moisture; watering a freshly repotted succulent is the classic way to rot it. Then resume the normal lean, dry rhythm. Do not fertilise for about 3 weeks — fresh mix already carries nutrients and feeding freshly disturbed roots scorches them.

The right soil mix for herrenhausen oregano

Herrenhausen Oregano wants poor to moderately fertile, sharply well-drained, preferably alkaline soil. Grow in gritty, lean soil with excellent drainage — similar to a Mediterranean herb bed or raised gravel garden. Tolerates alkaline to neutral pH (6.8–8.0). Rich, moist soil promotes soft, floppy growth with fewer flowers. Dislikes heavy clay. Always use fresh mix when you repot — reusing old, broken-down soil reintroduces the compaction and poor drainage you are repotting to fix.

Repotting herrenhausen oregano — frequently asked questions

How often should you repot herrenhausen oregano?

Every 2–3 years, into bone-dry mix for herrenhausen oregano. Repot herrenhausen oregano every 2–3 years into a snug pot of poor to moderately fertile, sharply well-drained, preferably alkaline soil, ideally in spring or summer. Let it sit in dry soil and do not water for about a week afterwards so any nicked roots can callus. Over-potting and watering straight away is what rots succulents.

What size pot does herrenhausen oregano need?

When is the best time of year to repot herrenhausen oregano?

Should you water herrenhausen oregano after repotting?

No — not straight away. Repot herrenhausen oregano into dry mix and wait about a week before the first watering so any damaged roots callus over. Watering a freshly repotted succulent is the single most common way to rot one.

Should you fertilise herrenhausen oregano after repotting?

Not immediately. Wait about 3 weeks after repotting herrenhausen oregano. Fresh mix already contains nutrients, and feeding freshly cut or disturbed roots burns them. Resume your normal feeding routine once you see new growth.