← All guides · Species & technique · Updated September 2026

Elaeagnus hedge myths: three things Thanet gardeners get wrong about silverberry.

Elaeagnus x ebbingei (silverberry, oleaster) is one of the most reliable hedging shrubs on the Thanet salt-belt, from the north-facing seafront gardens of Westgate-on-Sea CT8 and Birchington CT7 to the windswept boundary planting around Ramsgate CT11. It handles salt exposure, Margate Chalk's fast-draining alkaline soil, and the kind of northerly winter gales that come off the North Sea without complaint. It is also one of the species most consistently mistreated by three myths: not through any real complexity in the plant, but because what looks obvious about it happens to be wrong.

Myth 1: Elaeagnus grows slowly and does not need regular management

The logic behind this one is understandable. Elaeagnus x ebbingei looks established and bulky from the moment it is planted. Nobody seems to be doing much to it. You see it at the same size for years in a neighbour's garden. So the assumption forms: it must be slow-growing and essentially self-managing.

That is wrong about the growth rate. Elaeagnus x ebbingei puts on 30 to 45 centimetres of new growth per year once its roots are settled into the soil, which on Thanet's chalk-and-Thanet-Sand geology usually happens in the second or third growing season after planting. That rate is fast enough to need annual management. Without it, the plant develops into a wide, spreading dome: good coverage but at the cost of shading out what grows below it, overhanging paths and boundaries, and becoming progressively harder to reduce without losing coverage on the lower stems. A hedge planned at 1.5 metres typically reaches 2.5 metres within four to five years without any trimming.

The management required is not heavy. A single annual trim in the September-to-October window takes around 20 to 30 minutes per 10-metre run with a powered trimmer on a hedge that has been kept to shape. The plant's large, leathery leaves tolerate powered cutting reasonably well (unlike the large-leaved cherry laurel, which shows cut-leaf browning more obviously), so there is no need to revert to hand shears for the main annual pass. Leave it for two or three years and you are looking at harder remedial work, and on the thin chalk soils common across inland Broadstairs CT10 and Minster, hard reduction after years of neglect carries some risk of sparse regrowth on the lower framework stems.

Myth 2: reverted shoots on variegated Elaeagnus can be trimmed back like the rest of the hedge

This myth specifically affects the variegated cultivars of Elaeagnus x ebbingei, which are common in Thanet gardens: the gold-centred 'Maculata', the gold-edged 'Gilt Edge', and 'Limelight' with its bright yellow-green centre. All three regularly produce reverted shoots: stems that have lost their variegated pattern and are producing plain, solid-green leaves instead. They are easy to spot by midsummer. The green is noticeably brighter and more uniform than the surrounding foliage, and the leaves are usually a size larger.

The mistake is to trim them flush with the rest of the hedge at the annual cut and move on. That does not stop the reversion. It shortens the shoot, which then regrows from the cut point, faster than the variegated tissue around it, because plain green tissue is always more vigorous than the variegated form: it carries more functional chlorophyll and puts energy into extension growth rather than the reduced-chlorophyll patches that create the gold or cream patterning. Trim a reverted shoot twice and you have a dense clump of all-green growth sitting in the middle of your variegated hedge, growing faster than everything around it.

The correct approach: identify the reverted shoot and trace it back to the point where it emerges from the main stem. Cut cleanly at that junction, not flush, but at the origin of the reverted growth. This removes the entire shoot including the growing point producing the plain-green tissue. A pair of loppers or secateurs is the right tool for this, not a trimmer: you need to see where you are cutting. Work through the plant systematically and check again four to six weeks later, since new reversion points often become visible once the surrounding canopy has been managed.

If the variegated cultivar has extensively reverted across most of the plant, the green form has effectively displaced the variegated one and replanting is the practical answer. Elaeagnus x ebbingei 'Maculata' grown from vegetative propagation should be true to type on replanting; make sure you are buying from a nursery supplying named cultivars rather than unnamed seedlings, which will not carry the variegation reliably.

Myth 3: Elaeagnus is too tender for exposed Thanet coastal positions

This one appears regularly in garden advice discussions. The usual reasoning: "I've seen Elaeagnus in sheltered gardens but not much on exposed seafront positions, so it must struggle in full salt-wind exposure."

The opposite is closer to the truth. Elaeagnus x ebbingei is rated to approximately -15°C and is specifically classified by the RHS as suitable for coastal and exposed conditions. It is more cold-tolerant than escallonia (commonly rated to -10°C), more wind and salt tolerant than photinia, more drought-tolerant than griselinia on Thanet's fast-draining chalk-and-sand geology, and more reliably evergreen than privet in a hard winter. It is, in short, one of the better-matched species for the exposed north and north-west Thanet coastal strip: Minnis Bay, Westgate-on-Sea CT8, Birchington CT7, the more exposed parts of Cliftonville CT9.

The confusion usually comes from one of two sources. First, mixing Elaeagnus x ebbingei up with more tender relatives. Elaeagnus pungens and Elaeagnus angustifolia are different species with different hardiness profiles. Second, the specific variegated cultivars of E. x ebbingei, particularly 'Gilt Edge' and 'Limelight', are rated as slightly less frost-hard than the straight species, and this gets reported as "Elaeagnus is tender" without the cultivar distinction being made. Even the variegated forms are rated to around -10 to -12°C, which means they will survive Thanet winters without issue in all but the most unusual frost events.

Where Elaeagnus does struggle on the Thanet coast is in waterlogged ground. The Thanet Sand layer drains fast, which is normally an advantage for this species: it is drought-tolerant once established and will not sit in wet soil happily. In the lower-lying parts of the Cliftonville bowl or the Ramsgate valley streets where clay caps the chalk at shallow depth, drainage can be poor, and that is where Elaeagnus fails, not from cold or salt. If a plant in an exposed position is struggling, check drainage before assuming exposure is the cause.

A useful overview of Elaeagnus x ebbingei as a hedging species for British coastal gardens, covering establishment and basic management, was published by Hedging UK (hedginguk.com) and corroborated by RHS cultivation notes. The YouTube channel covering the plant's fragrance, pollinator value and overall performance in British gardens (youtube.com/watch?v=CU7L6UQM6X0) also provides a useful introduction for gardeners unfamiliar with the species.

Sources: Royal Horticultural Society, Elaeagnus x submacrophylla (syn. E. x ebbingei) cultivation notes and hardiness rating (rhs.org.uk); Hedging UK, "Elaeagnus Ebbingei: What You Need to Know" (hedginguk.com); Wildlife and Countryside Act 1981, section 1 (nesting season, offence provisions); Greenwood Plants, Plant Focus: Elaeagnus (greenwoodplants.co.uk); Jackson's Nurseries, Elaeagnus x ebbingei cultivation notes including reversion guidance (jacksonsnurseries.co.uk); Bluebell Arboretum & Nursery, Elaeagnus x ebbingei hardiness and site notes (bluebellnursery.com); Natural England, Margate Chalk and Thanet Sand geological series, drainage characteristics.