Greenly Garden

Autumn feeding: what the garden needs in fall

Most fruit bushes, fruit trees and roses get no fertiliser in autumn. The RHS and university extension services advise feeding in early spring and only mulching from late autumn to late winter: nitrogen given from midsummer on pushes soft late growth that frost damages. The one crop fed after its harvest is the June-bearing strawberry, renovated and fed straight after fruiting, with the last feed by the end of August.

Feed right after the harvest

Fed after fruiting, not in late autumn.

PlantWhen to feedIn autumnSources
StrawberryJune-bearers: straight after the last harvest (renovation), a second feed in late AugustNo fertiliser after 31 August; in late autumn cover with straw or leaf mulchyardandgarden.extension.iastate.edu, plantsoilcenter.cahnr.uconn.edu, publications.mgcafe.uky.edu, rhs.org.uk

No feeding from midsummer on

The sources name a cut-off: late growth after it is damaged by frost.

PlantWhen to feedIn autumnSources
RaspberryIn spring, before new growth startsNo feeding: fertilising stops after harvest, late growth suffers in winter; mulch from late autumnyardandgarden.extension.iastate.edu, yardandgarden.extension.iastate.edu, extension.oregonstate.edu, rhs.org.uk
BlueberryEarly spring, before the buds break (ericaceous feed)No feeding after bloom; over-feeding gives tender growth and winter injuryyardandgarden.extension.iastate.edu, rhs.org.uk, extension.umaine.edu
GrapeEarly springNo feeding in late spring or summer; stop as the grapes start to ripenyardandgarden.extension.iastate.edu, rhs.org.uk
AppleEarly spring, only if the crop was poorNo feeding from late spring on; mulch from late autumn to late winteryardandgarden.extension.iastate.edu, rhs.org.uk
PearEarly spring, only if growth is poorNo feeding from late spring on; a regularly mulched tree needs no feedyardandgarden.extension.iastate.edu, rhs.org.uk
PlumEarly springNo feeding in late summer or early autumn: it raises the risk of frost cracks and sunscaldextension.umd.edu, rhs.org.uk, yardandgarden.extension.iastate.edu
Sweet cherryEarly springNo feeding in late summer or early autumn: it raises the risk of frost cracks and sunscaldextension.umd.edu, yardandgarden.extension.iastate.edu
Sour cherryEarly springNo feeding in late summer or early autumn: it raises the risk of frost cracks and sunscaldextension.umd.edu, yardandgarden.extension.iastate.edu
RoseSpring and, for repeat-flowering roses, in midsummer after the first flushLast feed about six weeks before the first frost (by 15 August in Colorado); mulch from late autumnhgic.clemson.edu, planttalk.colostate.edu, depts.washington.edu, rhs.org.uk

Feed in spring only, mulch in autumn

No source advises an autumn feed; a mulch of compost or well-rotted manure from late autumn to late winter is enough.

PlantWhen to feedIn autumnSources
BlackcurrantEarly springNo fertiliser; well-rotted manure or a mulch from late autumn to late winterrhs.org.uk, yardandgarden.extension.iastate.edu
RedcurrantEarly springNo fertiliser; well-rotted manure may go on in late autumn; bushes planted in autumn get nothing until springyardandgarden.extension.iastate.edu, www2.gov.bc.ca
GooseberryEarly spring, only if the soil is poorMulch only; too much nitrogen gives soft growth that mildewsrhs.org.uk, yardandgarden.extension.iastate.edu
BlackberryEarly spring, only if the crop was poorNo fertiliser; in mulched soil no feed is neededrhs.org.uk, extension.oregonstate.edu
HaskapOnce in early spring: compost or well-rotted manureNo feeding; newly planted bushes get no fertilisergardening.usask.ca
HydrangeaLight feeds in March, May and July (Clemson)The schedule ends in July; too much nitrogen cuts flowering; keep a mulch all yearhgic.clemson.edu, plantfinder.mobot.org
LilacAfter flowering, and only if a soil test shows a needNo feeding; too much nitrogen gives leaves instead of flower budsbarron.extension.wisc.edu
RhododendronRarely needed; in pots, slow-release granules in springNo feeding after midsummer; over-feeding burns roots and leavesrhs.org.uk, depts.washington.edu

Sources disagree

Respected sources give different advice; both are shown.

PlantWhen to feedIn autumnSources
PeonySpring, with a mulch (RHS)UConn: do not feed in late summer or autumn. K-State: feed again in autumn after cutting backrhs.org.uk, homegarden.cahnr.uconn.edu, k-state.edu
ClematisIn the ground, rarely needed (RHS); in pots, through spring and summerOregon State: feed in spring, summer and autumn. Clemson: avoid excess nitrogen, which drives soft growthrhs.org.uk, extension.oregonstate.edu, hgic.clemson.edu

FAQ

Should you fertilise fruit trees and bushes in autumn?

As a rule, no. The sources on this page advise feeding apples, pears, plums, cherries, currants, gooseberries, raspberries, blueberries and grapes in early spring; several say outright not to feed in late summer or autumn, because late growth is damaged by frost.

Which plant is fed in late summer?

June-bearing strawberries: they are renovated and fed straight after the harvest, and the last feed is at the end of August (UConn). Roses get their last feed about six weeks before the first frost (Clemson) or by 15 August in Colorado.

What can you do in autumn instead of feeding?

Mulch. The RHS gives late autumn to late winter (November–February) as the time to spread compost or well-rotted manure around fruit bushes, fruit trees and roses; Iowa State also allows well-rotted manure around currants in late fall.

Reference information: the dates are the sources' own; your soil and a soil test may say otherwise.

Sources

  1. yardandgarden.extension.iastate.edu/faq/how-do-you-renovate-june-bearing-strawberries
  2. plantsoilcenter.cahnr.uconn.edu/2026/11/04/suggested-fertilizer-practices-for-strawberries/
  3. publications.mgcafe.uky.edu/sites/publications.ca.uky.edu/files/NEP244.pdf
  4. www.rhs.org.uk/fruit/strawberries/grow-your-own
  5. yardandgarden.extension.iastate.edu/how-to/fertilizing-tree-and-small-fruits-home-garden
  6. yardandgarden.extension.iastate.edu/faq/when-should-i-fertilize-my-raspberries
  7. extension.oregonstate.edu/catalog/pnw-780-nutrient-management-raspberries-blackberries-oregon-washington
  8. www.rhs.org.uk/fruit/raspberries/grow-your-own
  9. www.rhs.org.uk/fruit/blueberries/grow-your-own
  10. extension.umaine.edu/publications/2253e/
  11. www.rhs.org.uk/fruit/grapes/grow-your-own
  12. www.rhs.org.uk/fruit/apples/grow-your-own
  13. www.rhs.org.uk/fruit/pears/grow-your-own
  14. extension.umd.edu/resource/growing-stone-fruits-home-garden-cherries-peaches-plums
  15. www.rhs.org.uk/fruit/plums/grow-your-own
  16. hgic.clemson.edu/factsheet/growing-roses/
  17. planttalk.colostate.edu/topics/trees-shrubs-vines/1725-roses-maintenance/
  18. depts.washington.edu/hortlib/pal/best-time-to-fertilize-rhodies-azaleas-and-roses/
  19. www.rhs.org.uk/plants/roses/growing-guide
  20. www.rhs.org.uk/fruit/blackcurrants/grow-your-own
  21. www2.gov.bc.ca/gov/content/industry/agriculture-seafood/animals-and-crops/crop-production/berries/berry-production-guides/currant-gooseberry
  22. www.rhs.org.uk/fruit/gooseberries/grow-your-own
  23. www.rhs.org.uk/fruit/blackberries/grow-your-own
  24. extension.oregonstate.edu/catalog/ec-1303-growing-blackberries-your-home-garden
  25. gardening.usask.ca/gardening-advice/gardenline-nested-pages/food-plant-pages/fruit/haskap.php
  26. hgic.clemson.edu/factsheet/hydrangea-care-in-south-carolina/
  27. plantfinder.mobot.org/PlantFinderDetails.aspx?taxonid=286874
  28. barron.extension.wisc.edu/files/2023/02/Lilacs-for-Cold-Climates.pdf
  29. www.rhs.org.uk/plants/rhododendron/growing-guide
  30. www.rhs.org.uk/plants/peony/herbaceous/growing-guide
  31. homegarden.cahnr.uconn.edu/factsheets/peonies/
  32. www.k-state.edu/news/turf/articles/2016/11/fall-care-of-peonies.html
  33. www.rhs.org.uk/plants/clematis/growing-guide
  34. extension.oregonstate.edu/news/clematis-climb-special-place-garden
  35. hgic.clemson.edu/factsheet/clematis/