How to Keep a Garden Journal (and Why You Should)
The single best tool for improving your garden isn't a fancy gadget or expensive equipment. It's a notebook.
A garden journal is where you record what you planted, when, and how it performed. Over time, this simple practice transforms you from a beginner following generic advice to an expert on your specific microclimate. You'll know exactly which tomato varieties thrive in your coastal fog, when to plant lettuce for best results, and which spots in your yard produce the biggest harvests.
In Santa Cruz County, where microclimates vary dramatically from block to block, a garden journal becomes even more valuable. Generic advice doesn't apply here. Your journal is your customized growing guide, written by you, for your exact conditions.
This guide explains why keeping a garden journal matters, what to track, and how to make it simple enough that you'll actually do it.
Why a Garden Journal Matters
You'll remember what worked (and what didn't). Did 'Sungold' tomatoes produce well in your coastal garden last year? Without notes, you're guessing. With notes, you know.
You'll track planting dates. When did you sow carrots last fall? When did they germinate? When did you harvest? Next year, you'll know the perfect timing for your microclimate.
You'll avoid repeating mistakes. Planted tomatoes too early and they sulked? Wrote it down? You won't make that mistake again.
You'll build confidence. Looking back on a year of notes, you see how much you've learned. You're not a beginner anymore.
You'll discover patterns. After 2 to 3 years, patterns emerge. Your garden has a rhythm. You learn to read it.
You'll have variety names for reordering. Which pepper produced so abundantly last summer? If you didn't write it down, you'll forget by the time you're ordering seeds in February.
What to Track
You don't need to write a novel. Simple, consistent notes are better than detailed entries you abandon after two weeks.
Essential Information
Date: Every entry starts with a date. This is critical for timing next year.
What you planted: Crop and variety. "Tomato" isn't enough. "Sungold cherry tomato" is useful.
Where you planted it: Bed 1, container on patio, south side of garden. Helps with crop rotation and identifying best locations.
Source: Where did you buy the seeds or transplant? "Love Apple Farms," "Renee's Garden seeds," "Sierra Azul Nursery." If something does well, you want to buy it again.
Observations: How's it growing? Any problems? When did it start producing? This is the gold.
Example Entry
May 15
Planted 'Sungold' tomato (Love Apple Farms transplant) in Bed 2, south end
'San Marzano' tomato (seed from Baker Creek, started indoors March 1) in Bed 3
Weather: Foggy morning, cleared by noon
Notes: Soil temp 62°F, probably should have waited another week for 'San Marzano'
July 10
First 'Sungold' tomato harvest today! Sweet, productive, handles fog well
'San Marzano' still no fruit, slow in our climate
September 30
'Sungold' still producing heavily
'San Marzano' finally ripening but overall disappointing for coastal garden
Next year's plan: Stick with 'Sungold' on coast. Try 'San Marzano' inland at a friend's garden.
Optional but Useful Information
Weather: Temperature, fog, rain, wind. Helps explain plant performance.
Pests and diseases: When did aphids show up? Powdery mildew? How did you handle it?
Harvest totals: Weigh or count your harvest if you want data on productivity. "Harvested 3 pounds of cherry tomatoes today."
Fertilizer and amendments: What did you add, when? Helps track soil improvement.
Spacing: How far apart did you plant? Too close? Too far? Adjust next time.
Photos: A picture is worth a thousand words. Photos of garden layout, plant size, pest damage, or successful harvests add context.
How to Keep Your Journal
The best journal is the one you'll actually use. Choose a format that fits your style.
Paper Notebook
Pros:
No technology required
Works in the garden (no dead batteries, no dirty screens)
Satisfying to write by hand
Easy to sketch layouts
Cons:
Can get wet, dirty, or lost
Hard to search for past entries
Photos require printing or separate storage
Recommended notebooks:
Waterproof field notebook (Rite in the Rain brand)
Basic composition book (cheap, cheerful)
Garden-specific journals with prompts (available at bookstores)
Where to buy locally:
Bookshop Santa Cruz
Longs Drugs
Office supply stores
Target
Digital Journal
Pros:
Searchable
Easy to add photos
Cloud backup (never lose your notes)
Can access from phone or computer
Cons:
Requires device (not ideal when hands are muddy)
More distraction (tempting to check email while logging)
Options:
Notes app on your phone (simple, always with you)
Evernote (organize by tags, add photos)
Google Docs (accessible anywhere, easy to share)
Dedicated garden apps (see below)
Garden Planning Apps
Several apps are designed specifically for garden journaling and planning.
From Seed to Spoon
Free, tracks plantings, offers reminders
Zone-specific advice (set your location)
iOS and Android
Gardenate
Planting calendar by region
Simple journal function
iOS and Android
GrowVeg Garden Planner
Paid app, very detailed
Visual garden layout tool
Tracks planting dates and harvests
Pros: Built for gardening, have useful features
Cons: Learning curve, subscription costs for some
Hybrid Approach
Many gardeners use a combination:
Paper notebook in the garden for quick notes
Transfer to digital format monthly for searchability and backup
Photos stored digitally, printed for a physical album at end of season
When to Write
Daily: Ideal but unrealistic for most people. Even brief daily notes add up to valuable data.
Weekly: More realistic. Set a reminder. Review the week, write what happened.
At key milestones:
Planting day
First sprouts
Transplanting day
First flowers
First harvest
Last harvest
Problems (pests, disease, weather damage)
End of season: Summarize what worked, what didn't, and plans for next year. This is the most important entry.
What to Include at End of Season
End-of-season review is where your journal becomes invaluable.
Successes: What thrived? Which varieties produced abundantly? What would you grow again?
Disappointments: What failed? Was it variety, timing, location, or care?
Timing notes: When did you plant? Too early? Too late? Perfect?
Best planting locations: Which beds produced the most? Which were shady, too wet, too dry?
Pest and disease issues: What showed up? When? How did you handle it?
Harvest totals: If you tracked yield, summarize. "Bed 2 produced 40 pounds of tomatoes, Bed 3 only 15 pounds. Why?"
Next year's plan: Based on this year's lessons, what will you change?
Example End-of-Season Entry
October 31
Successes:
'Sungold' tomatoes in Bed 2 were incredible. 4 plants, 60+ pounds total harvest. Perfect for coastal fog.
Lettuce succession planting worked perfectly. Sowed every 2 weeks March-May, continuous salads through June.
'Provider' bush beans in Bed 4, planted late May, very productive.
Disappointments:
'San Marzano' tomatoes too slow for coast. Only 8 ripe tomatoes by October. Try inland next year or skip.
Cucumbers planted in shady Bed 1 produced nothing. Need full sun.
Forgot to succession plant beans. Next year, plant every 3 weeks through July.
Pest issues:
Aphids on peppers in June. Blasted off with hose, problem solved.
Powdery mildew on squash in late August (normal). Removed affected leaves.
Next year's changes:
More 'Sungold' tomatoes (up to 6 plants)
Skip 'San Marzano' or trade with inland gardening friend
Move cucumbers to Bed 2 (full sun)
Set reminders for succession planting beans and lettuce
Try 'Lunchbox' peppers (Love Apple Farms recommended for fog tolerance)
Santa Cruz-Specific Things to Track
Our unique microclimates mean certain observations matter more here than elsewhere.
Fog patterns: When does fog burn off? All day? Never? This affects crop performance.
Frost dates: When did you see first and last frost? Varies by yard.
Soil temperature: When did soil reach 60°F in spring? Affects warm-season planting.
Microclimates within your yard: Which spots are warmest? Coolest? Foggiest? Track performance by location.
Watering frequency: How often did you water in peak summer? Adjust next year.
Variety performance by microclimate: If you garden at multiple locations (home and community garden, or have friends with different microclimates), compare variety performance.
Local sources: Which nurseries had the best transplants? Which seed companies' varieties worked best here?
Making It a Habit
Keep your journal where you'll see it. By the back door, on the kitchen counter, in your garden shed.
Set a reminder. Sunday evening garden journal time. Block 15 minutes.
Make it easy. Don't overthink entries. Quick notes beat perfect entries you never write.
Review last year's journal in winter. While planning next season, read your notes. This is when they're most valuable.
Share with other gardeners. Santa Cruz gardening groups on Facebook or Instagram. Compare notes. Learn from each other's journals.
Local Resources for Garden Record-Keeping
UC Master Gardeners of Monterey Bay offer workshops on garden planning and record-keeping. Visit mbmg.ucanr.edu.
Cabrillo College Horticulture Department runs classes on garden management including journaling practices (6500 Soquel Drive, Aptos).
Bookshop Santa Cruz (1520 Pacific Avenue) carries garden-specific journals and notebooks.
Downtown Santa Cruz Farmers Market (Wednesdays at Cedar & Cathcart Streets): Talk to farmers about what they track. Professional growers keep detailed records. Ask them what matters most.
Start Simple
Don't let the idea of a perfect journal stop you from starting. Begin with:
Date
What you planted
Where you planted it
How it's doing
That's it. Four pieces of information. Over time, you'll naturally add more as you see what's useful.
The goal isn't to create a beautiful scrapbook (though if that motivates you, go for it). The goal is to build a personalized guide to your garden. After a few seasons, your journal becomes more valuable than any generic gardening book.
You're learning what works in your specific patch of Santa Cruz County. That knowledge is irreplaceable.
Beyond the Basics: Advanced Journaling
Once you've kept a journal for a season or two, you might want to add:
Garden maps: Sketch your bed layout each season. Track crop rotation.
Seed inventory: What seeds do you have? When did you buy them? Germination rates decline with age.
Succession planting schedule: When to sow each crop for continuous harvests.
Moon phase planting (if you're into that): Some gardeners swear by planting by moon phases.
Phenology: Nature's timing. When did the first hummingbird arrive? First monarch butterfly? When did the neighbor's plum tree bloom? Natural events correlate with planting times (hummingbirds arrive when it's time to plant tomatoes).
The Journal Is for You
Your journal doesn't need to be shared, beautiful, or comprehensive. It's a tool. Use it however works for you.
Some gardeners write daily novels. Others jot sparse notes once a month. Both approaches work. The best journal is the one you'll actually keep.
Start this season. Grab a notebook, open a document, download an app. Write today's date. Note what you planted or plan to plant. You've begun.
A year from now, you'll be amazed how much you've learned. Three years from now, you'll have a customized growing guide worth more than any book you could buy.
Ready to start your garden? Check out our guide to planning your first vegetable garden, or browse our seasonal planting guides for ideas on what to plant right now.
Want help tracking the season? Sign up for our free Santa Cruz planting calendar and get monthly reminders of what to plant, when, and what to note in your journal.
Garden Journal: What to Track
Start simple. Add detail as you go.
Monthly Journal Prompts for Santa Cruz Gardeners
Answer these each month and your journal writes itself
| Month | Key Journal Prompts |
|---|---|
| Jan-Feb | What seeds did I start indoors? How many frost nights? What survived winter? |
| Mar-Apr | When did I transplant? Last frost date this year? What's sprouting? |
| May-Jun | First harvests? Any pest problems? How foggy was this spring? |
| Jul-Aug | Peak harvest amounts? Watering frequency? Heat stress on any plants? |
| Sep-Oct | Fall planting dates? What varieties to grow again? Seed saving notes? |
| Nov-Dec | Year-end review: top 3 wins, top 3 lessons, changes for next year? |
