Repotting guide

When & how to repot Herb garden (mixed culinary herbs)

Also called kitchen herbs, culinary herb garden.

About Herb garden

mixed culinary herbs · also called kitchen herbs, culinary herb garden · herb

A culinary herb garden mixes Mediterranean herbs (rosemary, thyme, oregano, sage) that prefer dry sunny conditions with tender herbs (basil, parsley, cilantro) that need consistent moisture. Group herbs by water demand for the simplest care.

Many classic culinary herbs (rosemary, oregano, sage, thyme, lavender) originate in the Mediterranean basin, where they evolved in hot, dry, gravelly, low-fertility ground; matching that native habitat is the single biggest factor in herb success.

Need well-drained soil at pH about 6.0-7.5; sharp drainage matters most for perennial types because wet winter soil shortens their useful life.

Mature size: Varies by herb

Sources: extension.umn.edu, extension.psu.edu, extension.illinois.edu

How to tell herb garden needs repotting

Repotting on a calendar is less reliable than reading the plant. For herb garden, 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 herb garden

Every 2–3 years, into bone-dry mix. Herb garden's growth habit — mixed — shrubby, mounding, and upright forms — sets the pace. A culinary herb garden mixes Mediterranean herbs (rosemary, thyme, oregano, sage) that prefer dry sunny conditions with tender herbs (basil, parsley, cilantro) that need consistent moisture. Group herbs by water demand for the simplest care.

What size pot to step herb garden up to

Use a pot only one size up — or even the same pot with fresh gritty mix if the roots have room. Herb garden 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 herb garden

Spring or summer, while herb garden 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 herb garden

Repot dry. Do not water herb garden 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 free-draining mix 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 herb garden 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 herb garden 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 herb garden

Herb garden wants free-draining mix. Mediterranean herbs prefer lean, gritty soil; tender herbs prefer richer compost-amended mix. Containers let you give each its own conditions. Always use fresh mix when you repot — reusing old, broken-down soil reintroduces the compaction and poor drainage you are repotting to fix.

Repotting herb garden — frequently asked questions

How often should you repot herb garden?

Every 2–3 years, into bone-dry mix for herb garden. Repot herb garden every 2–3 years into a snug pot of free-draining mix, 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 herb garden need?

When is the best time of year to repot herb garden?

Should you water herb garden after repotting?

No — not straight away. Repot herb garden 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 herb garden after repotting?

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