Repotting guide

When & how to repot Parsnip 'Tender and True' (Pastinaca sativa 'Tender and True')

Also called Tender and True parsnip, exhibition parsnip.

More about parsnip 'tender and true'

About Parsnip 'Tender and True'

Pastinaca sativa 'Tender and True' · also called Tender and True parsnip, exhibition parsnip · edible

'Tender and True' is a heritage exhibition parsnip prized for long, smooth, well-flavoured roots with good canker resistance and almost no core. A long-season crop sown in spring, it needs deep, stone-free soil and patient growth, sweetening notably after autumn frosts. A reliable choice for show benches and the winter kitchen alike.

Mature size: Roots 25-35 cm long, 6-8 cm at the shoulder; tops 40-60 cm tall

Watch for — Forked or fanged roots: Stones, compaction, and fresh manure split the taproot. Deeply dig and de-stone the bed and never sow into recently manured ground.

How to tell parsnip 'tender and true' needs repotting

Repotting on a calendar is less reliable than reading the plant. For parsnip 'tender and true', 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 parsnip 'tender and true' 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 parsnip 'tender and true'

Pot on seedlings as they grow; not a perennial repot. Parsnip 'Tender and True'is grown for one season, so the question is really “how often to pot on” — keep moving it up before the roots circle. Rosette of large pinnate leaves above a long, tapering, creamy-white taproot; slow-growing over a full season..

What size pot to step parsnip 'tender and true' up to

Pot parsnip 'tender and true' 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 parsnip 'tender and true'

Pot parsnip 'tender and true' 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 parsnip 'tender and true'

Pot on before it is root-bound. Check parsnip 'tender and true' 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 deep, light, stone-free sandy loam, ph 6.5-7.0 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 parsnip 'tender and true' 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 parsnip 'tender and true'

Parsnip 'Tender and True' wants deep, light, stone-free sandy loam, ph 6.5-7.0. Cultivate 40 cm deep and remove stones; fresh manure causes forking and canker. A bed manured for a previous crop, with added lime if acidic, is ideal. Always use fresh mix when you repot — reusing old, broken-down soil reintroduces the compaction and poor drainage you are repotting to fix.

Repotting parsnip 'tender and true' — frequently asked questions

How often should you repot parsnip 'tender and true'?

Pot on seedlings as they grow; not a perennial repot for parsnip 'tender and true'. Parsnip 'Tender and True' is a seasonal crop, so you pot it on as a growing plant rather than repotting a perennial. Step seedlings up gradually into deep, light, stone-free sandy loam, ph 6.5-7.0 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 parsnip 'tender and true' need?

When is the best time of year to repot parsnip 'tender and true'?

Can you put parsnip 'tender and true' straight into a much bigger pot?

No. Even a fast-growing parsnip 'tender and true' 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 parsnip 'tender and true' after repotting?

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