My Deer Garden

Planting Purple Top Turnip for deer

Brassica rapa

Cool season

Deer hit this hard. That is the point.

Seeding rate
5 to 8 lb
per acre, broadcast
Minimum plot
1 acre
smaller gets browsed out
Plant
Mid to late summer, 60 to 90 days before first frost

Rates are broadcast figures. Drilling runs roughly a third lower. These are starting points from extension guidance and have not yet been re-checked against a second source per record, so treat them as indicative and soil test before you buy seed.

Plant typeFood plot forage
HardinessZones 3–9LightFull sun
MaintenanceModerate
FamilyBrassicaceae

About Purple Top Turnip

The classic late-season brassica. Deer largely ignore the tops until a hard frost converts starch to sugar, then hit them heavily, and dig the bulbs through winter once the tops are gone. That timing is the whole point and the commonest mistake. Planted too early it bolts and goes woody; planted too late it never bulbs. The window is 60 to 90 days before your average first frost, which for most of the north means late July into mid August. The second mistake is scale. Brassicas do not regrow from grazing the way clover does, so a small plot under pressure is stripped and finished. One acre is a realistic floor and this is the wrong crop for a quarter-acre opening. The third is repetition. Brassicas in the same ground year after year build up club root and other soil pathogens. Rotate them, ideally on a three-year cycle. Broadcast at 5 to 8 lb per acre. The seed is very small and very easy to over-sow, and a thick stand produces small bulbs.

Soil and care

Soil pH
6 to 7.5
Drainage
Well drained
Water
Moderate
Growth rate
Fast
Maintenance
Moderate

Similar to Purple Top Turnip

Other food plot forages with the same deer rating.

Protecting Purple Top Turnip

Deer will destroy this without protection, so the question is which kind you are willing to pay for.

Where Purple Top Turnip grows

Hardy across most of these 51 states on zone range alone. Mountain and coastal areas sit outside the ranges used here, so check your own zone before ordering.

Browse from here

Every list Purple Top Turnip belongs to.

Hardy in these zones

Common questions about Purple Top Turnip

What is the seeding rate for Purple Top Turnip?
Broadcast 5 to 8 lb per acre. Drilled rates run roughly a third lower. Soil test before buying seed, because pH matters more to the outcome than the rate does.
When should I plant Purple Top Turnip?
Mid to late summer, 60 to 90 days before first frost. It is a cool-season crop, so the window is set by your average first frost rather than by the month.
How big does a Purple Top Turnip plot need to be?
About 1 acre as a realistic floor. Below that, deer graze the crop faster than it establishes and you get bare ground instead of forage. Local deer density moves this number more than anything else.
Do deer actually eat Purple Top Turnip?
Frequently Severely Damaged on the Rutgers scale, which measures how heavily deer damage a plant. On an ornamental that is a warning. On a food plot crop it is the specification.
What hardiness zones does Purple Top Turnip grow in?
Purple Top Turnip is hardy in USDA zones 3 to 9. Outside that range it will either not survive winter or will struggle with summer heat.