Year-End Garden Inventory: What to Write Down Now So You're Not Starting From Zero in March

Updated October 10, 2026 · By Lauren Cain

Every February I used to stand in front of my empty beds trying to remember which tomato was the good one.

Was it the paste tomato in the back corner? The one by the fence? No clue. I couldn't have told you which bed stayed soggy all June, or whether the beans got powdery mildew last year or the year before. So I guessed. And every spring I repeated about half my mistakes, because all of it had leaked out of my head somewhere around Thanksgiving.

A gardening friend finally set me straight. Her secret wasn't a greenhouse or some forty-dollar planner. She wrote things down at the end of the season, while she could still remember them, and that was it. Twenty minutes, maybe less.

I'm a chemical engineer. I've kept a notebook for every project I've ever worked on. You'd think it would've occurred to me to do the same thing in my own backyard, but nope. Took me years.

So this is what I write down now, and how I keep it from turning into one more chore.

Why Do a Year-End Garden Inventory at All?

What you know about your garden right now has a shelf life. About six weeks, in my experience. Then it's gone.

Today you could tell me the cherry tomatoes swallowed the fence while the big slicers sulked. You know the north bed held water after every storm, and you remember exactly which corner the aphids moved into. By February all you'll have left is a vague feeling that it was "a pretty good year," which is about as useful as a seed packet with the label torn off when you're sitting there with a catalog in one hand and a pen in the other. Helps nobody.

A resolution to "do better next year" won't get you anywhere. A note that says "Sungold = winner, plant three. Brandywine = weak, drop it. Get the squash out of the wet corner" will. That's a plan you can actually follow.

I didn't invent this, obviously. Penn State Extension's Master Gardeners have been telling people for years to walk the garden with a pen and write down what worked, what didn't, and where everything went. It's the same reason the folks who plan their seed order in fall get the varieties they want, while the rest of us stare at "sold out" in March.

Which Plants Should You Grow Again?

Start here. If you only do one part of this, make it this one, because it's the page you'll flip to the minute the first seed catalog hits the mailbox.

You don't need a spreadsheet or a rating system. I walk the beds with my phone and give every variety a verdict, usually a word or two. "Again." "Never." "Meh, maybe."

• Winners. Whatever produced like crazy, tasted great, or ignored the disease that took out its neighbors. Write the exact variety name, since "the little yellow one" won't help you much in a catalog.
• Flops. Be ruthless. If it underperformed, got sick, or sat in the fridge until it went soft, cross it off.
• Maybes. Fine, not great. Before you give up on them, jot down what might've held them back: too much shade, a late start, or a feeding schedule that fell apart in July (mine always does).

The flops are the hard part. I grew one heirloom tomato three summers in a row because everybody online swore by it, and it did nothing for me. Three years! Writing "drop it" next to that name stung a little. It also freed up an entire bed.

One word next to each variety. That's the most valuable page in the notebook.

How Do You Map What Went Where?

Next, a map. Please don't make it pretty. Mine is a few lopsided boxes with "tomatoes," "beans," and "greens" scrawled inside, and it's one of the most useful pieces of paper I own.

The big reason is crop rotation. When tomatoes or squash sit in the same bed year after year, the diseases that love them build up in that soil, and moving them around starves those problems out. A 10-year field study in Plant Disease found that rotating crops, especially with a winter cover crop in the mix, cut soil-borne disease and shifted the whole microbial community in the soil. But rotation only works if you remember where things were. You won't. I promise.

The map is also where layout mistakes go so you don't make them twice. "Sunflowers shaded out the peppers" is a lot cheaper to fix on paper than in June. If you're shuffling beds around anyway, our companion planting chart will tell you who plays nice with who.

Which Garden Dates Are Worth Recording?

Seed packets and zone charts give you averages. Your garden isn't average. It's your yard, with your shade and your clay and that odd warm spot by the garage, and the only way to learn its real calendar is to write it down.

A few dates are plenty:

• First and last harvest. When did you pick the first ripe tomato, and when did the plants finally quit? The gap between those two dates is your actual season.
• First fall frost. The real date it hit your yard, not what the forecast promised. Here in Kansas City it moves around from year to year, so a few seasons of notes give you your own window. Keep it next to your spring last frost date, and our fall garden prep guide covers what to protect.
• When trouble started. "Squash bugs, mid-July." "Blight after that wet week in August." Next year you'll be ready a week early, and our natural pest control guide has the game plan.

Each takes seconds. Stack up a few years of them, though, and you'll stop gardening by somebody else's chart and start gardening by what your own yard has shown you, season after season, which is a much better teacher.

This is what you're trying to remember in February. A few notes now gets you back here faster.

How Should You Record (and Finish) Feeding the Soil?

Almost everybody skips this note. It's the one I'd argue with you about, because what's happening underground decides most of what happens above it.

Your best beds this year probably had your best soil, and in all the years I've been doing this, from my own backyard to the gardens our customers send us pictures of, that has almost never been an accident. Rarely luck. So write down what you fed, roughly when, and how those beds did compared to the others. Did the bed you top-dressed with Worm Castings outproduce the one you skipped? Did the plants on Plant Juice hold up better through August? Even a rough "I think so?" is worth writing down.

Then there's the note that's really a to-do: feed the beds before they go to sleep. Soil life doesn't switch off when it gets cold. It slows down, but plenty of it keeps chewing on leaves and old roots through fall and into winter (we dug into that in what happens to soil microbes in winter). The lab analysis of Plant Juice counted 291 microbial species. One is Cohnella laeviribosi, at about 10,100 cells/mL, from a group of bacteria known for staying active in cooler soil. Another, Pseudomonas putida, shows up at roughly 1.2 million cells/mL.

My fall routine is boring on purpose. I scatter worm castings over the beds and water them in with Plant Juice. It's CDFA Certified Organic and won't burn, so feeding this late doesn't worry me. Then I write "fed beds" and the date in my notebook and go inside.

Still picking an amendment? Worm castings vs. compost lays out the difference, and the guide to amending soil in fall goes deeper. The end-of-season cleanup guide and our post on winterizing raised beds handle the rest of putting the garden to bed.

Feed it once more before winter. This is what you want waiting under the mulch in spring.

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Where Should You Keep Your Garden Notes?

People get stuck right here. They go hunting for the perfect journal, or download three different apps, and then never write a single word. The best place for your notes is wherever you'll actually look in February.

• A cheap spiral notebook. The dollar-store kind is fine. Give each year its own page and stash it with your seed packets so you can find it.
• Your phone. It's already in your back pocket when you're out there. Type "frost tonight" and the date into the notes app while you're thinking about it.
• Photos with captions. I lean on these more than anything. One picture of the mildew on your squash leaves tells future-you more than a whole paragraph would. Iowa State Extension suggests keeping favorite varieties, a garden map, and finished tasks in whatever format suits you.

Messy is fine. A scribbled notebook you actually use beats a beautiful system you quit in June. Once the inventory's done, carry it straight into a year-end garden planning session with the new catalogs.

The Whole Inventory on One Card

Copy this into your notebook and fill it in.

That's the whole thing. Seven notes, about twenty minutes. And in March, standing in front of those beds, you'll already know which tomato was the good one.

Catalog season is a lot more fun when you already know what you want.

Real Gardeners, Real Results

I'd rather you hear it from them. I didn't plan this, but a lot of our reviewers end up comparing this year to last year. They're doing the inventory without calling it that.

★★★★★

Susan M.

I have had vegetable gardens now for about 10 years. I have had pretty good success, but this year with the use of Elm dirt, the garden looks healthier than we have had, and the amount of produce has doubled. I will be using Elm Dirt annually! Very happy!

Verified buyer · Plant Juice

★★★★★

Rickey J.

I have used Elm Dirt products in my 1st time ever raised beds garden boxes. Each plant has there premier worm castings. I feed twice a month with Plant Juice and every 6 weeks with Bloom Juice. I started my garden in mid May from 2" starter pots. I'm very please with the progress of my garden and the natural organic products I use.

Verified buyer · Worm Castings

Plant Juice is rated 4.65 out of 5 across 1,793 verified reviews.

Frequently Asked Questions

Write It Down Now, Coast Into Spring

Next year's garden doesn't start in April with a shovel. It starts this month at the kitchen table, with a notebook, a cup of coffee, and whatever you can still remember about this season.

Give it twenty minutes. Feed the soil one last time. Then go enjoy the off-season, knowing March-you already has a plan.

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Lauren Cain

Founder & Chemical Engineer · Elm Dirt, Kansas City

Lauren started Elm Dirt after her 6-month-old daughter grabbed fistfuls of backyard dirt and ate them. As a chemical engineer and a mom, she couldn't just shrug it off, so she dug into the science of what was really in garden soil. That rabbit hole led her to build a fertilizer line around beneficial microbes instead of synthetic chemicals. Today Elm Dirt's products are used by home gardeners, rose show champions, and organic growers across the country.