Spring is here!
But don’t get too carried away by sunny days; the nights can still be cold and it will be quite some time before the risk of frost is past.
But, with one eye on the weather forecast, it’s a season for sowing and planting, with many other things to be getting on with to try to keep pace with the progress of nature.
Divide clumps of herbaceous perennials as they start to come into growth. This invigorates them and stops them outgrowing their space, as well as providing more plants for use elsewhere
Use this opportunity to remove pernicious weeds, such as couch grass, bindweed and ground elder, that may have got into the roots, before replanting the divisions. Then finish off with a balanced feed, watering and a good layer of mulch.
Keep on top of early weed growth by hoeing off emerging weeds (with your nicely sharpened hoe) before they get really established, then put down a thick layer of mulch. This will save a lot of work later in the season.
Re-pot permanent planted containers in early spring is needed every two to four years to prevent problems with drying out and waterlogging.
In between, top dressing (scraping off the old compost from the top of the container and replacing with new) is useful
Overgrown climbers can be renovated this month. With deciduous ones, you should now be able to tell which growth is dead and which alive, as the live stems will show buds bursting into life.
Suitable climbers include Hedera (ivy), Lonicera (honeysuckle) and rambling roses.
Trim winter-flowering heathers as soon as their flowers fade (most easily done with a pair of shears); otherwise the plants risk becoming leggy.
Avoid cutting back into the woody stems as they will probably not regenerate.
Pruning of bush and climbing roses should be completed, if not already done.
They will also benefit from feeding with a granular rose fertiliser.
As it gets warmer, slugs will become more active. Clear away dead leaves and other detritus that can harbour slugs.
Biological control, ‘Nemaslug’, is effective and is not hazardous to wildlife; however, it does not control snails.
If using pellets, ferric oxide ones pose much less of a risk than the traditional metaldehyde ones.
And what about all those tips for keeping these pests off your cherished plants –
see RHS trial results.
Wildlife in the garden
Click any day below for a more detailed weather forecast, also looking further ahead