Gadenin日本語Get the appThe two calendars, side by side
Everything in the raspberry year follows from the pruning type. Summer-fruiting raspberries carry canes over the winter and crop on them in early summer, so their year is about protecting and tying those canes. Autumn-fruiting raspberries start from bare ground each spring and crop at the tips in late summer, so their year is about getting strong new canes up fast.
If you grow both, keep them in separate rows and label them. Mixed together they are almost impossible to prune, because you cannot cut everything down without losing the summer crop, and you cannot leave everything standing without ruining the autumn one.
| Season | Summer-fruiting | Autumn-fruiting |
|---|---|---|
| Late winter | Tip canes above the top wire; feed and mulch | Cut every cane to ground level; feed and mulch |
| Spring | Tie in; remove suckers outside the row | Let new canes reach 12 in (30 cm), then thin |
| Early summer | Flowering and first picking; water steadily | Canes growing fast; keep the soil evenly moist |
| Midsummer | Main crop; pick every two days | Canes reaching full height; remove strays |
| Late summer | Cut out fruited canes; thin and tie new ones | Flowering and first picking |
| Autumn | Tie in and clear the bed | Main crop until the first frosts |
Late winter: cutting, feeding and mulching
This is the busiest point of the year and everything done here shows up in the crop. The ground is bare, the structure is visible, and the plants have not started moving, so it is the one moment when you can see and reach everything.
Feed before growth starts, not after. A balanced general fertilizer at roughly 2 ounces per square yard (70 g per square meter) worked into the surface, followed by a 2 to 3 inch (5 to 8 cm) mulch of well-rotted compost, covers the whole season. Keep the mulch an inch clear of the canes so the bases stay dry, and do not add high-nitrogen feeds later in the year: they push soft growth that neither ripens nor resists disease.
- Prune according to type Summer-fruiting: tip the standing canes to 6 inches (15 cm) above the top wire. Autumn-fruiting: cut every cane flush with the soil. Do this before any buds break.
- Retighten the wires and check the posts The row is empty and this is the only comfortable time to do it. Push hard on every post and replace any that moves at the soil line.
- Cultivate lightly under the row A shallow scratch with a hand fork exposes raspberry beetle pupae to birds and frost, and lets the fertilizer reach the roots. Stay shallow; raspberry roots are only a few inches down.
- Feed, then mulch, and label the row Fertilizer first, then compost on top; reversed, much of the feed never reaches the roots. Write the type on a label at the end of each row while you can still tell them apart.
Do not lime a raspberry bed as a matter of routine. They want slightly acid soil at pH 6.0 to 6.5, and on chalky ground the usual symptom is yellow leaves with green veins, which lime makes worse.
Spring and early summer: thinning, water and suckers
New canes come up thick and fast in spring, and the temptation is to keep them all. Do not. Thin to one cane every 4 inches (10 cm) in the row while the shoots are short and soft enough to pull out by hand, and the canes that remain end up thicker, straighter and better ripened.
Water matters most from flowering through fruit swelling. Raspberry roots are shallow and dry out quickly, and dry soil at swelling produces small, crumbly berries that fall apart when picked. Aim for the equivalent of an inch (25 mm) of water a week during that period, delivered as one good soaking rather than daily sprinkles, and keep the mulch topped up.
This is also when the suckers appear where you do not want them. Deal with them now, in late spring, while they are green and soft. A sucker pulled sharply sideways at 6 inches (15 cm) tall comes away with the root that made it; the same sucker cut off with pruners in midsummer branches underground and sends up three.
| Job | Timing | Detail |
|---|---|---|
| Pull suckers outside the row | Late spring and again in late summer | Pull sideways; cutting makes more of them |
| Tie in new canes | As they reach each wire | Figure of eight, loose enough for a finger |
| Water | Flowering to the end of picking | About 1 in (25 mm) a week, in one soaking |
| Net against birds | Before the first berry colors | Netting put up later is too late |
The picking season and immediately after
Through the crop the routine is simple and unglamorous: pick every two days, take out the moldy and overripe fruit at the same time, and keep the water going. Skipping pickings is what turns a good year into a moldy one.
The moment the last summer-fruiting berry is off is the most important date in that row's year. Cut the fruited canes out at ground level straight away, thin the new canes to six or eight per stool, and tie them in while they are still flexible. Left until winter, those dead canes shelter disease and the new ones set into shapes that snap when you straighten them.
Autumn-fruiting rows need no such intervention. They keep cropping until the first hard frost stops them, and then they are simply left standing until late winter.
- Pick every two days, daily in heat Ripe fruit does not hold on the cane. Every missed picking leaves berries that go moldy and infect the ones around them.
- Cut out fruited canes the week picking ends On summer-fruiting rows only. Brown, brittle canes with old fruit stalks go; green flexible canes with none stay.
- Thin and tie in the same session Six to eight canes per stool, spaced along the wires, each tied individually. Doing it in one visit while you can still tell the ages apart saves a lot of squinting later.
- Clear the debris out of the bed Prunings, fallen leaves and rejected fruit all leave the garden rather than going on the mulch. Rust, cane spot and gray mold all overwinter in that material.
- Keep watering after the crop The canes standing now are next year's crop and they are still ripening wood. A dry late summer gives thin canes and a poor following season.
Autumn, winter and the notes that make next year easier
Autumn is a quiet season in the raspberry bed. Clear fallen leaves from under the row, check that the ties from late summer are not cutting in, and leave the canes standing. Raspberries are fully hardy and need no winter protection in most gardens; what damages them is wet feet, not cold, so if the row stands in water after rain, that is the thing to fix before the next dormant season.
The end of the season is the right time to write up the year while it is still fresh. A raspberry bed lasts a decade or more and the decisions you make in it are annual, so a record that goes back several years is genuinely more useful than memory.
Note the type of each row, the pruning dates, the first and last picking dates, the rough yield, and anything you cut out for disease and where it was. Note the year the bed was planted as well. When the fruit starts going crumbly across the whole row and the yield tails off, the planting date is what tells you whether you are looking at a bad season or a bed that has reached the end of its useful life.
| Note to keep | Recorded when | What it answers later |
|---|---|---|
| Type of each row | At planting or first fruiting | How to prune it every winter after that |
| Planting year | At planting | Whether declining yield means replanting time |
| First and last picking dates | Each season | When to net, and when to expect the crop |
| Where diseased canes were cut out | As it happens | Recurring trouble spots and drainage problems |
| Where suckers keep appearing | Late spring | Whether a root barrier is worth installing |
A raspberry bed is productive for roughly eight to ten years. When crumbly fruit and falling yield appear across every plant at once, plan a new bed with fresh certified canes on ground that has not grown raspberries, rather than trying to rescue the old one.