What to plant in December in the UK

Use this december checklist as a seasonal starting point, then check local frost, weather and the needs of each species.

December checklist

• Keep plants away from cold glass and hot radiators.
• Water by checking compost, not by calendar.
• Review the year and make a spring wish list.

Plants we grow: what to do in December

• Coleus: Pot up indoors. A houseplant all year that can summer outside once frosts are over. Bring it back in before nights drop below about 10°C.
• Tradescantia, Callisia and inchplants: Pot up indoors. Indoor trailing plants that can be potted up any month. Pinch and root the tips in spring and summer for bushier pots.
• Kalanchoe and Mother of Thousands: Pot up indoors. Succulent houseplants for a bright windowsill all year. Keep them on the dry side in winter. Toxic to pets.
• Cacti and trailing succulents: Pot up indoors. Pot up any month in gritty compost. Water sparingly from November to February while growth rests.
• Terrarium and foliage houseplants: Pot up indoors. Indoor and terrarium plants that can be planted any month. Keep them out of cold draughts and hot radiators in winter.
• English ivy: Pot up indoors. Hardy, so it can live indoors or go outside in spring or early autumn.

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