Repotting guide

When & how to repot Yukon Gold Potato (Solanum tuberosum 'Yukon Gold')

Also called Yukon Gold potato, yellow-fleshed potato.

More about yukon gold potato

About Yukon Gold Potato

Solanum tuberosum 'Yukon Gold' · also called Yukon Gold potato, yellow-fleshed potato · edible

Yukon Gold is a popular early-to-mid-season potato with thin yellow skin and buttery yellow flesh that holds together well, making it excellent for mashing, roasting and boiling. A cool-season tuber crop, it needs full sun, loose acidic soil and steady moisture, and is harvested about 80-95 days after planting seed potatoes.

Mature size: Foliage 45-60cm tall and wide; tubers medium-large, round-oval, 5-8cm.

Watch for — Greening of tubers: Tubers exposed to light turn green and accumulate toxic solanine. Hill soil over developing tubers and store harvested potatoes in the dark.

How to tell yukon gold potato needs repotting

Repotting on a calendar is less reliable than reading the plant. For yukon gold potato, 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 yukon gold potato 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 yukon gold potato

Pot on seedlings as they grow; not a perennial repot. Yukon Gold Potatois grown for one season, so the question is really “how often to pot on” — keep moving it up before the roots circle. Herbaceous frost-tender annual with sprawling-to-upright bushy stems and compound leaves; edible tubers form underground on stolons and are covered by hilling soil up around the stems..

What size pot to step yukon gold potato up to

Pot yukon gold potato 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 yukon gold potato

Pot yukon gold potato 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 yukon gold potato

Pot on before it is root-bound. Check yukon gold potato 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 loose, fertile, well-drained slightly acidic soil, ph 5.0-6.0 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 yukon gold potato 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 yukon gold potato

Yukon Gold Potato wants loose, fertile, well-drained slightly acidic soil, ph 5.0-6.0. Prefers friable, deeply worked soil that lets tubers expand. A lower pH around 5.0-5.5 suppresses common scab. Avoid fresh lime, which encourages scabby skins. Always use fresh mix when you repot — reusing old, broken-down soil reintroduces the compaction and poor drainage you are repotting to fix.

Repotting yukon gold potato — frequently asked questions

How often should you repot yukon gold potato?

Pot on seedlings as they grow; not a perennial repot for yukon gold potato. Yukon Gold Potato is a seasonal crop, so you pot it on as a growing plant rather than repotting a perennial. Step seedlings up gradually into loose, fertile, well-drained slightly acidic soil, ph 5.0-6.0 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 yukon gold potato need?

When is the best time of year to repot yukon gold potato?

Can you put yukon gold potato straight into a much bigger pot?

No. Even a fast-growing yukon gold potato 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 yukon gold potato after repotting?

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