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April is the month when many people turn their attention to improving their gardens. As temperatures begin to rise, even the most casual of gardeners begin to spend more time outdoors.

Carefully selected shrub planting forms the backbone of ornamental planting schemes, whether for low maintenance and contemporary designs, or for more traditional mixed or cottage garden styles. For height and structure no garden should be without them, but it’s all too easy to choose poorly.

It’s important to choose the right shrub for your situation. Some useful questions include:

What is the shrub for?

What is it for? Is it purely for ornamental purposes, or to provide screening and privacy? For privacy, it might not need to be evergreen, but you will probably want it to be densely branched. For security you may also want thorns or prickles, for wildlife you may want flowers and berries, and so on.

What type of planting scheme is it for?

The shrubs you choose for a formal scheme may be more limited in the number of different varieties used and require regular clipping for topiary. However informal gardens would benefit from more “naturalistic” forms and shapes.

Space and effort

How much space do you have, how large do you want it to get, and what maintenance are you prepared to do? Don’t choose shrubs that will grow too large for the available space unless you’re prepared to periodically prune them.

What will grow in the spot you’re thinking of?

Once the position, size and shape of the desired planting bed has been decided, you do of course need to know what will work in the conditions. This is probably the most important factor of all when choosing any plants, not just shrubs. There is no point setting your heart on something which simply won’t thrive in the conditions on-site.

For instance, almost no evergreens will grow for very long in soil which is regularly flooded or waterlogged. There’s no point in planting ericaceous shrubs such as Rhododendrons in limy soil as they won’t survive unless grown in acid conditions.

So, consider:

  • soil conditions – is it wet, dry, clay, chalk, slope, possibly contimated by salt or other problems?
  • exposure – such as wind, temperature, salt spray
  • aspect – is there plenty of natural light, or is it in the shade?
  • competition from nearby trees
  • proximity to drains and buildings
  • grazing animals which might eat them
  • any other relevant factors

How big do you want to plant?

Planting larger stock will of course bring faster results, and reduces the temptation to plant too many shrubs for the space. But there are basic logistical matters to consider with bigger plants such as handling and access on site. Also consider that bigger plants will need more watering at first until they can get established. Can you commit to watering them?

Are there legal issues involved?

Plants must be chosen carefully and sympathetically, taking neighbouring properties into consideration. For example, tall evergreens over two metres tall, if two or more are grown together as to form a continuous screen, can sometimes lead to neighbourhood disputes if close to the boundary. They may even become subject to the “high hedge legislation” under the Anti-social Behaviour Act. Therefore, if tall screening is needed, can it be achieved with deciduous options instead?

Do you like the plant?

If, after having gone through all the previous steps, you don’t like your remaining options you may want to reconsider some of your initial criteria. If in doubt, do seek our advice.


Mixed shrub planting provides structure

Above and below: Mixed shrub planting provides structure

Instant maturity with mature shrubs

Some of our favourites

Remember when selecting shrubs for a shrub or mixed border, it’s best to ensure interest all year round. This can be achieved by providing some winter structure from evergreens (30-50% evergreens is a good guide). Don’t be seduced by the seasonal colours of just what is looking at its peak at the time.

This is especially important in mid-Spring when so many shrubs are putting on a fantastic display. Shrubs in flower in April may include showy deciduous varieties of Forsythia, Deutsia, Kolkwitzia, Kerria, Magnolia, some Viburnums, as well as evergreens such as Berberis and Osmanthus. The latter produces flowers with the most amazing scent.

One shrub which you may not be aware of, but one which will be the star attraction of your spring garden, is Amelanchier lamarckii (Snowy Mespilis). This graceful shrub has a light, airy habit providing dappled shade. It can be grown into open, multi-stemmed specimens which are equally at home in formal garden designs or in more naturalistic landscapes.

Regular clipping will produce a denser shrub for use where space is limited or even as an ornamental and informal hedge. Suited to most soil types, as long as they aren’t too limy, Amelanchier usually produces its magnificent display of star-shaped white blossom in mid to late April. In autumn, if planted where it can receive plenty of direct sunlight, Amelanchier will reward you with a fiery display of autumn foliage splendour.


Amelanchier blossom is one of the highlights of spring

Above: Amelanchier blossom is one of the highlights of spring.


Jobs to do in April:

  • If you haven’t done so already, be sure to start the regular watering of any trees, shrubs or hedging planted within the last two years. If automatic irrigation systems have been installed, check them for leaks and re-set timers as required.
  • Feed trees, shrubs and hedging with a balanced feed. Flowering specimens can be given a plant food with extra Potash to encourage blooms, such as tomato food or a good rose fertiliser. Vigorous evergreens such as laurel, Portuguese Laurel, Photinia and so on will need a feed with extra Nitrogen. Ideally also give them some Magnesium to restore vigour and a lustrous green to the foliage, especially if planted within the last two years.
  • Are your Photinias looking sparse and getting leggy? April is a good time to give them a hard prune. Don’t forget to feed them straight afterwards.
  • Only prune hedges now if you are sure that there are no birds nesting in them.
  • Early-season shrubs which have already flowered can be pruned now. Cotinus (Smoke Bush) can still be pruned in April. If you haven’t already pruned them yet, hard-prune Cornus (Dogwood) early in April to produce the brightest-coloured stems for next winter.
  • Deal with weeds now as they emerge, especially quick-seeding species before they spread. A little work now will save a lot more later in the summer.
  • Edge the lawn. Not only will it help to make lawns look tidier but will also help clearly define the edges of beds and borders for the coming season.

Get some expert advice

On our nursery, where we sell larger stock anyway, it’s easy for customers to get a sense of how the shrubs will look and will fit into their gardens. Our stock is too large for most customers to simply pick up and take away in their cars. This means the sales process, whether in person (on the nursery or through an on-site consultation) or through exchanged emails of photos, etc, involves more discussion and advice than the normal retail experience.

If you want help selecting shrubs for your garden, whether just to fill some gaps or for a complete garden makeover, we offer a full advisory service. We would invite you to make an appointment for a one-to-one with one of our horticulturalists on the nursery. Or to book an on-site consultation for us to come to you. You can also contact us at with photos, measurements and your contact telephone number so that we can discuss your requirements with an informal, no-commitment chat.

31 March 2020