Escallonia is one of the most widely planted hedging and screening shrubs in Ireland — tough, salt-tolerant, fast-growing, and capable of producing a dense evergreen screen that flowers reliably through summer. Which makes it all the more alarming when it goes wrong. If you are looking at an escallonia that appears completely bare, the stems brown and lifeless, the plant that was perfectly healthy last summer now looking as though it has died entirely, the first and most important thing to establish is whether it actually has. In many cases it has not. What looks like death in an escallonia is often severe stress — and a stressed escallonia can recover, provided you give it the right conditions and do not give up on it too quickly.

The reason escallonias in Ireland go bare so dramatically comes down to two things that have both become more common in recent years: the volume of rainfall our gardens receive through winter and autumn, and the fungal infections that follow extended periods of wet, mild weather. Escallonia is classified as evergreen but it is more accurately described as semi-evergreen in Irish conditions — it will hold its leaves through a normal winter, but under sufficient stress it will drop them. That stress does not have to come from hard frost, which is the cause most people assume. Prolonged waterlogging, month after month of saturated soil around the root zone, puts the plant under a different kind of stress that achieves the same result — leaf drop, dieback of weaker stems, and a plant that looks, by late winter or early spring, as though it has given up entirely. In many cases it has not.

The scratch test is the most reliable way to assess whether an escallonia that looks dead actually is. Choose one of the main structural stems — not a fine tip that may genuinely have died back — and scrape lightly into the bark with your thumbnail or a penknife. If the tissue beneath is green or creamy white and has a trace of moisture, there is life in that stem and the plant has the capacity to regenerate. Brown, dry, papery tissue throughout the stem is a different story. Do this on several stems before concluding anything about the plant as a whole — a hedge that has lost sections entirely may still have viable plants within it, and the viable ones are worth saving even if some individual plants have genuinely died.

If the scratch test shows the plant is alive, the next step is to cut it back. This is where many people hesitate, because cutting back a plant that already looks terrible feels counterintuitive. But escallonia regenerates well from hard pruning, and removing the dead and dying material is essential for two reasons — it stimulates the plant to put energy into new growth from further back on the stem, and it reduces the volume of fungally infected material that might otherwise spread the problem. Cut back to where you can see the bark is firm and the scratch test shows green underneath. Do not be too cautious about how far back you go. A well-established escallonia cut back hard in spring will typically throw new growth within weeks once conditions are right.

Fungal leaf spot is a common companion problem in escallonias that have been under stress. You will see it as dark purplish-black spots on the remaining leaves, often with a pale centre, and in severe cases the spots merge and the leaves fall entirely. Once you have cut back the affected growth, remove all fallen leaves from around the base of the hedge and dispose of them away from the garden rather than composting them — the spores persist in dead material and can reinfect the plant. A drench of the remaining stems and the soil around the base with a solution of copper sulphate and water will help address the fungal element. This is worth doing in early spring before new growth begins, and again if symptoms reappear later in the season.

Alongside the pruning, improving the soil around the hedge is the most important thing you can do for its recovery and its long-term resilience. Work as much good organic matter as you can around the base — homemade compost, well-rotted farmyard manure, or a composted bark mulch along the root run. This improves drainage, builds soil structure, and introduces the kind of microbial activity that supports healthy root function. If you then add a biochar-based feed to that organic matter, you are doing something more lasting than a short-term nutrient boost — biochar improves the soil's capacity to hold nutrients over time rather than allowing them to leach away in the next heavy rain. An escallonia in genuinely good soil is a plant with real resilience. An escallonia in compacted, exhausted or waterlogged soil will always be fighting a losing battle regardless of what you spray on it.

Once you have cut back, cleared the fallen leaves, drenched for fungal infection and improved the soil, the final instruction is patience. An escallonia that has been badly stressed through a wet winter will not look transformed overnight. New growth will appear slowly through spring, and you will likely spend the first season watching it cautiously rather than confidently. By summer, if the right steps have been taken, most plants will be showing enough new growth to make it clear that recovery is underway. By the following spring the hedge should be looking substantially better. If after a full growing season there is still no sign of new growth on a section that passed the scratch test, that section has likely not made it — but do not make that judgement before giving it the full season to respond.