Repotting guide

When & how to repot Curly Endive 'Frisee' (Cichorium endivia var. crispum 'Frisee')

Also called frisee, curly endive, frizzy endive.

More about curly endive 'frisee'

About Curly Endive 'Frisee'

Cichorium endivia var. crispum 'Frisee' · also called frisee, curly endive · edible

Curly endive, or frisee, forms a low rosette of finely cut, frizzy green leaves with a crisp, pleasantly bitter bite. Blanching the centre by covering the heart for a week or two turns the inner leaves pale yellow, crisp and milder. A fast cool-season salad crop best grown for late summer and autumn cutting.

Mature size: 20-30 cm across, 15-25 cm tall

How to tell curly endive 'frisee' needs repotting

Repotting on a calendar is less reliable than reading the plant. For curly endive 'frisee', watch for these signs:

Roots circling the bottom of the module or pot, or poking out of the drainage holes.
The seedling dries out within a day and growth has visibly stalled.
Roots are white and matted in a tight spiral when you tip the plant out.
It has outgrown its current container for the stage of the season — pot curly endive 'frisee' on before it becomes hard root-bound.

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 curly endive 'frisee'

Pot on seedlings as they grow; not a perennial repot. Curly Endive 'Frisee'is grown for one season, so the question is really “how often to pot on” — keep moving it up before the roots circle. Flat, spreading rosette of deeply cut, narrow curled leaves on a shallow root; bolts to a branched flower stem in heat or its second season..

What size pot to step curly endive 'frisee' up to

Pot curly endive 'frisee' on gradually — a seedling jumped straight into a huge pot sits in cold, wet, airless soil and stalls. Step up one or two sizes at a time as the roots fill each container, finishing in a large final pot or the ground. The aim is roots that never circle and never check.

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 curly endive 'frisee'

Pot curly endive 'frisee' on through the active growing season, whenever roots fill the current container — there is no single date, just "before it becomes root-bound". Avoid potting on during a cold snap.

Step-by-step: repotting curly endive 'frisee'

Pot on before it is root-bound. Check curly endive 'frisee' regularly; move it up as soon as roots reach the edge of the cell or pot, not after they have circled.
Step up one or two sizes. Choose the next container up — not a giant one. Cold, wet, unused soil around a small root system stalls seedlings.
Knock it out gently. Support the stem, tip the pot, and ease the rootball out without breaking it. A little teasing of circled roots at the base is fine.
Pot into rich mix. Set it into fresh fertile, moisture-retentive loam, ph 6.0-6.8 at the same depth (tomatoes are the exception — they can go deeper to root along the stem).
Water in and grow on. Water well, keep it in good light, and resume feeding once it is established and growing again.

Aftercare

Water curly endive 'frisee' in well and keep it in bright light; a freshly potted-on seedling can wilt for a day while roots settle, so do not overcompensate by drowning it. Do not fertilise for about 1 week — fresh mix already carries nutrients and feeding freshly disturbed roots scorches them.

The right soil mix for curly endive 'frisee'

Curly Endive 'Frisee' wants fertile, moisture-retentive loam, ph 6.0-6.8. Rich, well-drained soil with plenty of organic matter gives quick, lush growth. Free-draining ground is important for autumn crops to avoid rot in the dense, ruffled centre. Always use fresh mix when you repot — reusing old, broken-down soil reintroduces the compaction and poor drainage you are repotting to fix.

Repotting curly endive 'frisee' — frequently asked questions

How often should you repot curly endive 'frisee'?

Pot on seedlings as they grow; not a perennial repot for curly endive 'frisee'. Curly Endive 'Frisee' is a seasonal crop, so you pot it on as a growing plant rather than repotting a perennial. Step seedlings up gradually into fertile, moisture-retentive loam, ph 6.0-6.8 so the roots never circle the cell, ending in a large final container. A root-bound transplant stalls and never fully recovers.

What size pot does curly endive 'frisee' need?

When is the best time of year to repot curly endive 'frisee'?

Can you put curly endive 'frisee' straight into a much bigger pot?

No. Even a fast-growing curly endive 'frisee' should only go up one pot size at a time. A vastly oversized pot holds a reservoir of wet soil the roots cannot reach, which stays cold and soggy and rots the roots — the opposite of what you wanted.

Should you fertilise curly endive 'frisee' after repotting?

Not immediately. Wait about 1 week after repotting curly endive 'frisee'. Fresh mix already contains nutrients, and feeding freshly cut or disturbed roots burns them. Resume your normal feeding routine once you see new growth.