A little knowledge. A growing garden.
The right cut at the wrong time costs a year.
Most pruning mistakes aren’t bad cuts. They’re good cuts made in the wrong month: next spring’s lilac flowers snipped off in September, or a rose pushed into tender growth just before frost. This tool gives you the month first, then the how.
01 / OLD WOOD OR NEWWhen it blooms decides when you cut
Spring bloomers like lilac, forsythia and bigleaf hydrangea set next year’s buds in summer: prune right after flowering. Summer bloomers like panicle hydrangea, butterfly bush and crape myrtle bloom on new growth: prune in late winter.
02 / KNOW YOUR TYPEOne name, different rules
Hydrangeas, roses, clematis and raspberries each come in types with different timing. Choose yours, or pick “I’m not sure” for the safe answer and a tip on how to tell them apart.
03 / KNOW YOUR CLIMATELate winter isn’t the same month everywhere
Add a ZIP or USDA zone to shift the timing for your climate band. Dead, broken or diseased wood can come out any month, whatever the chart says.
A few things gardeners ask
When is the best time to prune shrubs?
It depends on when they bloom. Shrubs that flower in spring, such as lilac, forsythia and azalea, bloom on last year’s wood: prune right after they flower. Shrubs that flower in summer on new growth, such as panicle hydrangea, butterfly bush and crape myrtle, are pruned in late winter or early spring, before growth starts.
Why does the tool ask for my hydrangea, rose, clematis or raspberry type?
For these plants the type changes the answer. A bigleaf hydrangea pruned in March loses its flowers, while a panicle hydrangea pruned in March is right on time. If you don’t know the type, choose “I’m not sure”. You’ll get the safe answer and a tip on how to tell the types apart.
Is it bad to prune in fall?
Often, yes. Fall cuts can push tender new growth that winter cold kills, and on spring bloomers they remove next year’s flower buds. Exceptions include cutting peony foliage after a hard freeze. Dead, broken or diseased wood can come out any month.
Do I need my ZIP code or USDA zone?
No, but it helps. Pruning windows shift with climate: a rose pruned in January in coastal California waits until April in Minnesota. Without a zone, the tool compares every climate band and tells you when the answer depends on where you garden. ZIP lookups use the Garden Calendar’s zone table.
Where do the pruning dates come from?
Each plant’s timing comes from university Extension and state forestry guidance, including UMN, Clemson, Iowa State, Penn State, UF/IFAS, UC and Texas A&M. Sources are linked with every answer. Months are grouped into broad USDA zone bands, so local weather, elevation and the plant itself still have the final say.
Can I print it without an account or email?
Yes. Results and Print / Save PDF are free with no account or email. An optional name personalizes the sheet and stays in this page’s memory. The QR code holds only the plant, type, zone and month, never your name or ZIP.
SproutySpeaks · A little guidance. A growing garden.