March

Spring has sprung

Another winter has passed and we can now reap the rewards of last year’s efforts. Many of the bulbs you planted will be flowering profusely whilst spring flowering shrubs will be bursting into bloom. If you are missing some colour in your garden now is the time to visit the garden centre for spring inspiration. We always have a wide selection of seasonal flowering shrubs & plants to brighten up your garden or buy some potted flowering bulbs to bring immediate colour to a neglected corner.

Now is also a good time for the whole family to get stuck into the garden and enjoy spring together. It is also an ideal time to start a new garden project - perhaps plant a vegetable patch or grow your own veg in containers, you could even create a new border & sow summer flowers from seed.

Pruning

March is a good month for pruning. You can prune your shrub roses and climbing roses now, this is also the right time to prune heathers and mahonias.

• Prune Hydrangea paniculata flower heads back to a strong pair of buds.
• Prune summer flowering shrubs such as Lavatera, Buddleja & Caryopteris.
• Coppice shrubs for colourful stems or foliage such as Cornus, Salix and Eucalyptus.
• Prune shrub roses - Prune shrub roses down to between ten and fifteen centimetres above the ground, and dispose of the pruned branches. Prune them short, since all sorts of disease spores can survive on the branches. Only retain strong shoots. Only prune when there is no frost. Prune just above outward-pointing buds (eyes).
• Pruning climbing roses - If it is already a sizeable bush, you should prune off a few of the oldest branches. Cut the others back if they have got too long, this encourages the formation of fresh shoots. Leave the rest. Branches which are bent horizontally to some extent give the most flowering shoots, which is why the fan shape is particularly popular when fixing climbing roses.
• Prune heathers - Cut off what grew last season. Prune the bushes a little spherical, and never back to the bare wood, since the plants will find it difficult to grow from that.

Planting & Sowing

• There are a large number of vegetable seeds which can be sown this month including cucumbers, aubergines, tomatoes, peppers. Use a heated propagator or sunny windowsill.
• As the soil begins to warm it is also time to plant shallots, onion sets, early potatoes, leeks, parsnips, broad beans & peas to name but a few! Vegetables sown last month undercover can also be planted out now & covered with a cloche to harden them off. Chitted early potatoes are also ready to be planted.
• Hardy annuals can be sown direct into the soil where they are going to flower from mid-March including the Sweetpea (Lathyrus). From mid-March you can also sow summer flowers outside in a cold frame.
• Plant (replant) deciduous trees and shrubs - A lot of trees and shrubs are about to start to put out shoots. This will mean that they will grow particularly well and powerfully after planting. Plants grown in containers (pots) can be planted all year round.
• Plant grapes - This can be done with (pot-grown) grapes all year round, but if you plant now, a grape will take particularly easily. This also applies to blackberries and related varieties such as the loganberry.
• Plant roses - To plant roses dig a sizeable hole and enrich the soil going into it with plenty of nutrients. Roses are hungry plants.
• Planting time from the end of March - Shrubs and perennials which flower in the summer and beyond should ideally be planted now.
• Plant biennials - Plant varieties such as daisies (Bellis), wallflowers, pansies, forget-me-nots, Silene. These varieties produce a leaf rosette in the first year and flower in the second year. They are a perfect addition to annuals and perennials.
• Start canna, begonia & dahlias into growth and place them in a sunny spot.

Plant a hedge

• March is an excellent time to plant hedges.
• You should work with a five plants per linear metre, (with a twenty centimetre gap between each plant).
• If you are creating a double hedge where the plants are staggered in two rows, you can plant with a gap of thirty centimetres and you will need six to eight plants per linear metre.
• For low hedges like Buxus you should plant so that the plants just touch. You will then need eight to ten plants per linear metre.
• Always make sizeable holes and enrich the soil in the planting holes.

Maintenance

• Nutrients are very important for a healthy garden, so definitely don't forget to fertilize.
• March is a very good time for planting and replanting - Pick out which perennials flowered less last year, they age over time and grow less vigorously at the centre. You can fix this for many varieties by dividing or separating the plants every three to four years. Enrich the soil in the new location and plant out the young edge parts you have separated off.
• Repot or topdress indoor & outdoor container plants to give them a boost & water regularly now.
• Nature is awakening, and so are slugs and snails. Start fighting them before they can attack your plants. Slugs are mainly nocturnal. You can catch them by hand during their night-time feeding expeditions. There are also environmentally-friendly slug pellets which are not hazardous to other animals (or humans). The other advantage of these is that the dying slugs retreat underground, so you do not need to clear up dead slugs.
• Remove winter protection - Remove protective layers of organic material from perennials. Ensure that you do not damage any young shoots (tips). Take care not to walk on areas where there are bulbs in the soil. Remove plastic bags or other winter protection from the crown of standard roses.
• Weed vigorously again - Weeds grow tirelessly. Remove as many as possible before the seeds can form. This happens more quickly than you think. Eradicate stubborn weeds thoroughly.
• Water plants in acid soil - In March plants which like acid soil have a particular need for water. So give varieties such as Pieris, Rhododendron and bilberries extra water this month.

Restore or improve your lawn

• Set the lawnmower a bit higher than normal and do not mow if the weather is wet. Remove the cuttings. They can go on the compost heap or in thin layers as mulch between the border plants.
• Restore the lawn - A lawn restoring kit is ideal for giving new, dark green life to your lawn. You can do it in a few quick steps, without digging and with aeration. March is an excellent time to sow a new lawn or lay new turf.
• If you have problems with moss you can alleviate this in the short term by applying a moss killer then rake or scarify & reseed. It may be caused by poor drainage which needs to be remedied to get long term control.