- Improve the drainage of heavy soils by working in lots of organic matter.
- Perennials putting on plenty of growth may need support by the end of the month.
- Check tree ties and stakes. Replace, tighten or slacken them where necessary.
- Firm back newly planted trees and shrubs if they have been lifted by strong winds.
- Check protective coverings on newly planted or borderline hardy trees, shrubs and climbers, to ensure they remain secure until the risk of frost has passed.
- Check and pergolas, arbours, arches and fence if needed.
- Give repair watering cans a good scrub out to prevent fungal disease.
- Take action to remove algae from paths if they start to become slippery.
- Mow the established lawns if the weather is mild enough and the grass shows signs of growth. Ensure the first cut of the season is light, raising the blades 0.5cm (0.25in) higher than the usual cutting height.
- In late March apply a high nitrogen spring/summer lawn fertiliser to encourage good, strong growth to help the lawn recover after the winter