Repotting guide

When & how to repot Bloody Butcher Corn (Zea mays 'Bloody Butcher')

Also called Bloody Butcher corn, red heirloom corn, Native American corn.

More about bloody butcher corn

About Bloody Butcher Corn

Zea mays 'Bloody Butcher' · also called Bloody Butcher corn, red heirloom corn · edible

Bloody Butcher is a tall heirloom dent corn with deep blood-red kernels, grown for cornmeal, roasting ears and ornamental ears. Plants reach 3 m and bear two or more ears each. As a wind-pollinated grass it must be sown in blocks, in full sun, on fertile soil after the soil has warmed.

Mature size: 2.4-3.6 m tall; about 30-45 cm spacing per plant in a block.

How to tell bloody butcher corn needs repotting

Repotting on a calendar is less reliable than reading the plant. For bloody butcher corn, 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 bloody butcher corn 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 bloody butcher corn

Pot on seedlings as they grow; not a perennial repot. Bloody Butcher Cornis grown for one season, so the question is really “how often to pot on” — keep moving it up before the roots circle. Tall, single-stemmed annual grass forming tassels at the top and silked ears on the stalk; plant in blocks for wind pollination..

What size pot to step bloody butcher corn up to

Pot bloody butcher corn 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 bloody butcher corn

Pot bloody butcher corn 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 bloody butcher corn

Pot on before it is root-bound. Check bloody butcher corn 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, fertile, well-drained loam 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 bloody butcher corn 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 bloody butcher corn

Bloody Butcher Corn wants deep, fertile, well-drained loam. Rich, nitrogen-hungry crop; work in compost or manure before sowing. Target pH 6.0-6.8; loose soil supports the deep roots and tall stalks. Always use fresh mix when you repot — reusing old, broken-down soil reintroduces the compaction and poor drainage you are repotting to fix.

Repotting bloody butcher corn — frequently asked questions

How often should you repot bloody butcher corn?

Pot on seedlings as they grow; not a perennial repot for bloody butcher corn. Bloody Butcher Corn is a seasonal crop, so you pot it on as a growing plant rather than repotting a perennial. Step seedlings up gradually into deep, fertile, well-drained loam 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 bloody butcher corn need?

When is the best time of year to repot bloody butcher corn?

Can you put bloody butcher corn straight into a much bigger pot?

No. Even a fast-growing bloody butcher corn 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 bloody butcher corn after repotting?

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