Winter Gardening at Big Valley Donkey Ranch

How to Turn Your Milk Jugs into Tiny High-Desert Greenhouses

by Grace Whitfeld


If you’ve ever stood outside in January in Concho, pulled your coat tighter against the wind, and thought, “You know what this needs? Lettuce.” — welcome. You are our kind of people.

Winter in the high desert at Big Valley Donkey Ranch is not soft.
 It is bright. It is windy. It is 25° at sunrise and somehow 60° by lunch.

The donkeys grow thick coats and look smug about it.
 The rest of us start collecting milk jugs.

Because while other places tuck gardens in for winter, here in Concho we do something slightly rebellious:

We plant anyway.

And we use empty milk jugs to do it.


Why Milk Jugs Work in the High Desert

At 5,000+ feet elevation, the high desert gives us:

A milk jug greenhouse protects seeds from frost and wind while allowing natural temperature cycles to signal when it’s time to sprout.

It’s simple. It’s nearly free.
 And it feels a little bit like outsmarting winter.


Step 1: Gather Your “Supplies” (Also Known as Recycling)

You’ll need:

At Big Valley Donkey Ranch, we go through enough milk to support a small bakery, so jug collection is rarely the obstacle.


Step 2: Perform Jug Surgery (Calmly)

Lay the jug on its side.

Cut around the middle, leaving about an inch uncut beneath the handle so the top stays attached like a hinge.

You are creating a clamshell greenhouse.

Do not cut it fully in half.

If you do, congratulations — you now own two plastic bowls and zero greenhouse.

Punch 3–4 small drainage holes in the bottom.

Because even lettuce dislikes wet socks.


Step 3: Use Real Potting Soil (Respectfully)

This is important.

Do not scoop soil from the donkey pasture and expect culinary greatness.

High desert soil can be sandy, alkaline, and stubborn. Use a lightweight potting mix that drains well but holds moisture.

Fill the bottom of the jug with 3–4 inches of soil. Moisten it gently — think damp sponge, not monsoon season.


Step 4: Choose High-Desert-Friendly Kitchen Crops

In Concho’s high desert climate, we focus on hardy cool-season crops for winter sowing:

If you would happily toss it into soup, a spring salad, or scrambled eggs — it’s a good candidate.

Sprinkle seeds according to packet directions. Cover lightly with soil. Press gently.

Whisper encouragement if you feel led.


Step 5: Close the Lid — Leave the Cap Off

Close the jug.

Secure it with duct tape if the winter wind at your place behaves like it’s auditioning for a weather documentary.

And this is crucial:

Leave the cap OFF.

The open cap allows ventilation and prevents overheating on bright desert afternoons.

Because here in Concho, even in winter, that sun means business.


Step 6: Placement Matters in the High Desert

In many climates, gardeners recommend a south-facing wall.

In Concho? That can turn your milk jug into a solar experiment.

Instead:

The barn wall works beautifully at Big Valley Donkey Ranch.

And because high desert winds are known to redecorate without asking, either:

Nothing humbles a gardener faster than chasing airborne lettuce.


Step 7: Yes, They Stay Outside

This is the part that feels wrong.

You do not bring them inside at night.

You do not carry them in and out like fragile guests.

You leave them outside.

Winter sowing works because seeds experience real winter conditions. The freeze-thaw cycle tells them when to wake up.

In the high desert, that might mean patience.

Cold nights linger here longer than lower elevations. Germination may not happen until late February or March.

Do not panic.

They are listening to the land.


Step 8: Monitor Moisture (Because It’s Arizona)

Unlike humid climates, Concho does not provide regular atmospheric generosity.

Check the soil every 7–10 days.

If it looks dusty through the plastic, add a small splash of water through the open cap — just enough to re-dampen.

We are growing greens.
 Not cultivating regret.


Step 9: The Miracle Moment

At some point — often when you stop checking daily — you will notice tiny green sprouts pressing upward.

In the high desert, this feels especially miraculous.

Because this landscape teaches resilience.

Cold nights.
 Bright days.
 Wind that tests everything you build.

And yet — seeds rise.


Step 10: The Great Opening

When seedlings are several inches tall and temperatures are consistently mild (usually late April or early May in Concho), you can:

Because these seedlings have grown up outside, they are already hardened off.

No greenhouse drama.
 No transplant shock theatrics.

Just steady, ranch-raised greens.


The Kitchen Garden Vision

Imagine stepping outside the ranch house in early spring and gathering:

Fresh lettuce for lunch.
 Spinach for breakfast.
 Parsley clipped moments before soup.

All started in January.
 All grown in what used to hold 2% milk.

If that isn’t high-desert resourcefulness, I don’t know what is.


Final Thoughts from the Ranch

Winter gardening in Concho is not polished.

It may involve crooked cuts.
 It may involve duct tape.
 It may involve retrieving one rogue jug from a fence line.

But it works.

And perhaps more importantly — it reminds us that growth does not require perfect conditions.

At Big Valley Donkey Ranch, we’ve learned something from both donkeys and deserts:

Steady preparation in quiet seasons produces surprising abundance later.

Even here.
 Especially here.