Conifers and shrubs

A conifer hedge, flowering lilac and ornamental shrubs give a garden character throughout the year. Looking after them means understanding what they need: whether the roots have enough water, when branches can be pruned, what a change in foliage colour means and whether feeding is appropriate. This section brings together practical advice on conifers and shrubs to help you decide what to do before buying fertilizer or starting the next garden job.

Begin with the individual plant. Thuja beside a sunny fence, a dwarf conifer in a container and an old lilac near the house may need different care. Keep the species and cultivar name, inspect the planting position and consider previous work. These details make it easier to choose relevant advice instead of repeating the same treatment throughout the garden.

What to check before caring for shrubs

Look at the whole planting first, then examine individual branches and the ground. Establish whether the change affects the entire plant, its interior or one side. Compare neighbouring plants in a hedge: water from a downpipe, shade from a building or recent digging can create different conditions along even a short row.

• Plant. Identify its species, cultivar, approximate age and planting date.
• Position. Check light, wind exposure and drainage.
• Roots. Check moisture in the original root ball and surrounding soil.
• Previous care. Consider watering, pruning, fertilizer and nearby work.
• Changes. Photograph the whole plant and the affected area.

If deterioration followed a particular job, record the sequence. This helps during a consultation but does not establish the cause. Dated photographs are more useful than trying to remember how yellow a branch looked last week. Compare the same part of the canopy rather than different sides of the plant.

Yellow thuja: a colour change is not always disease

Healthy thuja can shed older inner foliage in autumn while its outer growth remains green. This differs from dying shoot tips, entire branches or most of the canopy. Stress can increase foliage loss, so inspect the whole plant and check conditions around its roots before deciding what the change means.

Brown patches can be associated with drought, waterlogging, winter drying, excessive trimming, pests or disease. Colour alone cannot identify the cause or the correct treatment. Photograph webbing, sticky deposits, tiny organisms or dark structures on foliage for closer examination. Treat these as clues rather than an automatic diagnosis.

If damage spreads, the whole plant declines or the cause remains unclear, seek advice with photographs and a care history. Fertilizer cannot replace correcting waterlogging or identifying a pest. Consider feeding after assessing growing conditions, previous applications and the actual needs of the planting.

Water, soil and newly planted roots

Roots occupy a limited volume after planting. Check the original root ball as well as neighbouring soil because their moisture levels may differ. Watering a new shrub exactly like an established one may not meet its needs. Equally, persistently wet soil can damage roots and lead to browning foliage.

Where soil regularly stays saturated, first establish where the water comes from and how it drains. More fertilizer will not solve that problem. Before changing the soil or choosing a feed, read how to assess garden soil. Testing can help clarify acidity and nutrient supply where needed.

Do not try to create identical soil conditions for every shrub. Lilacs and acid-loving plants, for example, should not automatically follow one programme. Check container drainage, growing medium and available root space separately. Conditions in a small tub differ from those in an open border.

Pruning conifers and lilacs

Conifers: preserve living green growth

Most conifers regenerate poorly from old, leafless wood. Cutting too deeply can leave bare patches that are difficult to fill. Identify the species and the extent of green growth before shaping it. Avoid trying to turn a large neglected hedge into a small one with a single severe cut.

After winter, do not immediately remove every browned tip: some branches may retain living buds. Watch growth resume to distinguish dead tissue from areas able to recover. Postpone trimming during hot, dry conditions too. The plant's condition matters alongside the calendar when deciding what to remove.

Lilacs: protect the next flowering display

Common lilacs form the next season's flower buds after spring flowering. Carry out regular light pruning after flowering to avoid removing future blooms. Major renovation is a separate task: consider the condition of older branches and the potential loss of some flowers when planning it.

If flowering is poor, check light, age, cultivar and previous pruning. A young plant or a shaded shrub does not necessarily need additional fertilizer. Lilacs favour a sunny position with drainage. Choose feeding according to need rather than expecting it to guarantee a larger display.

Checks through the seasons

Evergreens can lose water in sunny, windy winter weather. Frozen roots cannot adequately replace that loss. Planting position and previous moisture supply therefore matter, particularly for young plants in exposed places. Choose any protection for the species and conditions rather than covering every shrub in the same way.

In Ukraine, plan checks instead of assigning every job a fixed date. Growth can start at different times between regions or beside different walls. Match advice to the plants and weather. A planned purchase month is not an instruction to feed immediately after delivery or repeat applications every month.

Choosing fertilizer for conifers and shrubs

Compare fertilizers for conifers by their purpose, application method and pack size. For deciduous shrubs, find the appropriate plant group in the complete instructions. A universal product may suit several plantings without giving them identical rates. Suitable alternatives are choices to compare, not products to apply together automatically.

Plan the purchase by garden zone

Calculate a new row of thuja, a mature hedge and flowering shrubs separately. Save zone names and measurements in My Garden. For the chosen fertilizer, check the application method, required measurements and total quantity. Plant height, plant count and planted area are different measurements and cannot simply replace one another.

Compare the amount needed with available packs and leftover product at home. A large canister does not set the dose for one shrub. Review each zone before combining the order. Afterwards, record the date, fertilizer, location and quantity used in your own notebook. Keep the original packaging and its storage instructions for the next purchase.

Frequently asked questions

Does thuja need treatment when foliage yellows in autumn?

Not always. Older inner foliage can change seasonally while outer growth remains healthy. Inspect the whole canopy and root zone. Dying tips, large branches or rapidly spreading changes need further investigation before treatment is chosen.

Can lilac and thuja receive the same fertilizer?

Only when the complete instructions cover the relevant groups and the chosen use suits each planting. Check rates separately. A product for several plants can simplify ordering without making their needs identical.

Why does a lilac flower poorly after pruning?

Flower buds may have been removed with the branches. Consider the timing and severity of pruning, light and the shrub's age. Plan ordinary light shaping after flowering; treat major renovation as a separate decision.