What to Plant in December
Seeds to sow, young plants to put out, and what's flowering in December in UK gardens — drawn straight from the GardenWizz plant encyclopedia.
🌱 Sow in December
Sow these seeds this month (11 plants).
Bulb Onion (Allium cepa)
Chamomile (Matricaria chamomilla)
Garden Parsley (Petroselinum crispum)
Hollyhock (Alcea rosea)
Lupin (Lupinus)
Nordmann Fir (Abies nordmanniana)
Pea (Pisum sativum)
Pink Lily Leek (Allium oreophilum)
Rosemary (Salvia rosmarinus)
Small Yellow Onion (Allium flavum)
Traveller's Joy (Clematis vitalba)
🪴 Plant out in December
Put these into the garden now (47 plants).
Apothecary's Rose (Rosa gallica)
Aspen (Populus tremula)
Banksia Rose (Rosa banksiae)
Blackberry (Rubus fruticosus)
Blireana Plum (Prunus × blireana)
Boxwood (Buxus sempervirens)
Cappadocian Maple (Acer cappadocicum)
Chamomile (Matricaria chamomilla)
Cherry Plum (Prunus cerasifera)
Common Alder (Alnus glutinosa)
Common Beech (Fagus sylvatica)
Common Dog-Violet (Viola riviniana)
Cowslip (Primula veris)
Crab Apple (Malus sylvestris)
Dogwood (Cornus sanguinea)
English Ivy (Hedera helix)
English Oak (Quercus robur)
Field Birch (Betula pubescens)
Flaky Juniper (Juniperus squamata)
Folgner's Rowan (Sorbus folgneri)
Gorse (Ulex europaeus)
Hawthorn (Crataegus monogyna)
Hellebore (Helleborus)
Honeysuckle (Lonicera periclymenum)
Hybrid Honeysuckle (Lonicera × heckrottii)
Japanese Maple (Acer palmatum)
Japanese Rowan (Sorbus commixta)
Japanese Spiraea (Spiraea japonica)
Kotschy's Crocus (Crocus kotschyanus)
Lemon Balm (Melissa officinalis)
Moth Orchid 'Ariadne' (Phalaenopsis × ariadne)
Nordmann Fir (Abies nordmanniana)
Oaks (Quercus)
Paperbark Maple (Acer griseum)
Red-Barked Dogwood (Cornus alba)
Rhubarb (Rheum rhabarbarum)
Rose (Rosa)
Rowans And Mountain Ashes (Sorbus)
Shrubby Rock-Roses (Cistus)
Silken Pincushion Cactus (Mammillaria bombycina)
Sweet Chestnut (Castanea sativa)
Sycamore (Acer pseudoplatanus)
Tulip (Tulipa)
Viburnums (Viburnum)
Violet Willow (Salix daphnoides)
Willow (Salix viminalis)
Yew (Taxus baccata)
🌸 In flower in December
What's blooming this month (20 plants).
Bodnant Viburnum (Viburnum bodnantense)
Candelabra Aloe (Aloe arborescens)
Cape Cowslip (Lachenalia)
Chenille Plant (Acalypha hispida)
Darley Dale Heath (Erica x darleyensis)
Derenberg's Painted Lady (Echeveria derenbergii)
Fairy Primrose (Primula malacoides)
Fire Heath (Erica cerinthoides)
Hairy Grey Heather (Erica canaliculata)
Hellebore (Helleborus)
Horned Spurge (Euphorbia ceratocarpa)
Mexican Snowball (Echeveria elegans)
Mother Of Hundreds (Mammillaria compressa)
Moth Orchid 'Ariadne' (Phalaenopsis × ariadne)
Oven Wattle (Acacia pravissima)
Scarlet-Plume (Euphorbia fulgens)
Smooth Crocus (Crocus laevigatus)
Spider Plant (Chlorophytum comosum)
Thread Agave (Agave filifera)
Viburnums (Viburnum)
❄️ UK frost dates by region
Approximate last spring / first autumn frost — always check your local forecast before sowing or planting out tender plants.
| Region | Last spring frost | First autumn frost |
|---|---|---|
| Scotland & far north | late May | late September |
| North of England | mid May | mid October |
| Midlands & Wales | early–mid May | late October |
| East & South East England | late April–early May | late October |
| London & urban areas | mid April | early November |
| South West & coastal | mid April | November |
Recommended Products
GardenWizz earns a commission from qualifying purchases made through affiliate links on this page (including links within the article) — as an Amazon Associate, and from Thompson & Morgan via the Awin network. This does not affect the price you pay. See our disclaimer for details.