The Ornamental Garden in October
Generally this month is about tidying up before winter sets in, and planting out various perennials, and shrubs before the soil cools down.
At any time this month:
Cut down Dahlias if the have been blackened by frost.
Cut down Phlox paniculata after flowering.
Prepare beds to receive Cheiranthus / Wallflowers.
Collect Gunnera seeds if required.
Week 40 - 30th Sep. to 5th Oct.
Prune Abelia if necessary.
Sow Lily bulbils.
Plant out Acer, Achillea, Aconitum, Agrostemma, Alchemilla mollis, Allium, Anchusa, Astrantia, Avena, Berberis, Calluna/Heather,Centaurea montana, Chionodoxa, Clematis, Clerodendrum, Colutea, Deutzia, Dicentra, Dictamnus, Dierama, Digitalis,Echinacea, Echinops, Eryngium, Escallonia, Fatsia japonica, Genista, Hamamelis mollis, Hazel, Hellebores, Hemerocallis,Hesperis, Heuchera, Hibiscus, Hydrangea, Jasmine nudiflorum, Laburnum, Lamium, Lilies, Loosestrife, Lupin, Narcissus / Daffodil, Pansy, Poppy / Papaver, Philadelphus, Phlox paniculata, Platycodon, Polygonatum, Potentilla, Pulmonaria, Roses, Rudbeckia, Saxifrage, Sedum, Sidalcea, Sweet William, and Wisteria.
Fetch potted Camellias indoors for the winter.
Ease back on the watering of plants, in particular Alstroemeria.
Spray Roses to deter mildew and Black spot.
Plant out Althaea and spring bulbs.
Lift Gladioli corms.
Remove old Rose bushes that have been reluctant to flower.
Week 42 - 213th Oct. to 19th Oct.
Plant up bare rooted Rose plants into containers.
Trim Calluna / Heather.
Clear away spent summer plants from beds and containers.
Prepare Dahlia tubers and box them up for winter storage.
Root prune Physalis plants.
Lift Canna and store for winter.
Move containerised Zantedeschia to a frost free area for the winter.
Prepare bed for the following years Gladioli.
Week 43 - 20th Oct. to 26th Oct.
Cut down Delphinium plants to ground level after leaves have died back.
Ensure newly planted roses have not suffered from wind-rock damage, firm in as necessary.
In colder areas it may be worth while lifting Gazania plants and potting them up to store in a frost free area.
Clean Gladioli corms and store in a cool spot.
Week 44 - 27th Oct. to 2nd Nov.
Divide Rudbeckia if required, or wait till new growth emerges in spring.
Take Bacopa plants indoors, trim and prepare for winter storage.
Protect Ferns for the winter.
Place containerised Alstroemeria into a frost free area for the winter.
Prepare / protect outdoor Containers for the winter.
Lift, box up, and store Chrysanthemum stools.
If not done previously do the same with Dahlia tubers.