Harvest your garlic.

Traditionally, you should harvest on the longest day of the year - 21 December. However, I like to keep an eye on the leaves and when they start to yellow and begin to dry off I gently uproot them with a fork. Be careful not to yank the leaves or you might rip the stalks off. Then simply brush off any dirt and hang them in a dry, airy spot inside

Dig up your new potatoes for Christmas lunch or dinner.

Plant flowering annuals, like red and white petunias and impatiens, for the festive season. Impatiens are perfect for growing in a shady spot and petunias thrive in the sun. Avoid too much watering to prevent the plants rotting.

Keep planting your gourmet veges (like fancy lettuce and spinach) and herbs (like coriander, and rocket) so you have a continuous and regular supply. And try growing all the summer herb and veg that aren’t available in the rest of the year like chillies, basil, eggplants, cucumbers and more.

With the weather now getting warmer, plant seedlings out in the evening and water well. If planted on a sunny day they will have wilted by end of day.

If you haven't already, apply pea straw mulch on your vege, herb and flower gardens. Watch out for aphids. Start deadheading your roses for their next flowering in autumn. If they're hybrid teas, cut them back to where the branch is as thick as a pencil - so the next shoot that grows from there will have enough growth to produce a flower. Prune back your spring growth on hedges and topiary balls.

Remember to keep watering and make sure you do it in the morning, not at night, so the sun has a chance to dry the moisture off your leaves. If you water at night the moisture will rot the leaves overnight. If your pot plants look like they're getting a bit dry, put a thin layer of stones on the top of the soil to retain the moisture.

If it's really dry around your tomatoes, put a thin layer of newspaper and then some compost on top to keep the moisture level steady. Stake your tomatoes. Avoid tipping water on their leaves so as not to cause blight.