If you did not prune your lavender last autumn do so now, use secateurs or shears to remove spent flower spikes and shorten growing shoots by around 2.5 cm.
Plant chitted potato tubers this month, starting with first earlies through to main crop at the end of the month.
Forsythia will soon finish flowering. To keep plants neat and ensure a good display next year, cut flowered stems back to a strong new, leafy side shoot and remove one or two of the oldest stems to the base.
Once tomato seedlings have their first true leaves, plant them deeply with the seed leaves resting on the surface of the multipurpose compost. Handle the seedlings by their leaves and not the stem to prevent bruising.
Apply a layer of mulch to your borders. Use organic matter, such as well rotted manure, garden compost or mature wood chippings at a depth of 5-10 cm. Mulching helps retain moisture, suppress weeds and improve soil texture.
Apply a spring lawn feed. It is best to obtain a product that contains moss killer, weed killer and fertilizer. Use a hand propelled spreader to get an even distribution.
At the end of the month, sow tender vegetables indoors such as runner and french beans, courgettes, squashes and pumpkins to plant out after the last frost in May.
Renovate overgrown and badly shaped evergreen shrubs this month. Camellias, Hollies (Ilex), Euonymous and Laurel tolerate pruning to near ground level in one go.
Ensure birds are not nesting before trimming evergreen hedges.
Repot house plants if they are out growing their current container. Plant into a container that is only slightly larger than the current one. Use a similar potting compost. Multipurpose, loam based or proprietary house plant is suitable for most. If the plant is pot bound, separate the roots before repotting.