What Months Do Laurels Grow? A Seasonal Timeline

Most laurels put on the bulk of their new growth between mid-spring and early summer, roughly April through June in the Northern Hemisphere, with a possible second, smaller flush in late summer. Because laurels are broadleaf evergreens, though, they never fully shut down the way a deciduous tree does. Even in the coldest months their leaves stay active at a reduced level, and root growth can continue well into autumn. The real story of when laurels grow depends on what kind of growth you mean, which species you have, and where you live.

The Main Spring Flush

For most common laurel species, including cherry laurel, bay laurel, and Portugal laurel, the primary burst of above-ground growth begins once soil and air temperatures climb consistently above about 10°C (50°F). In mild maritime climates like southern England or the Pacific Northwest of the United States, that typically means March or early April. In colder continental areas, the flush may not start until late April or May. You will notice elongating shoots, bright green leaves unfurling at the branch tips, and sometimes a noticeable “leggy” look as stems stretch quickly.

This spring flush is the single most productive growth period of the year. Cherry laurel hedges can add 30 to 60 cm of new shoot length during this window, which is why late spring is the classic time for the first hedge trim. Bay laurel is slower, but it too pushes most of its new leaf growth during this period. The flush is fueled partly by energy reserves the plant stockpiled during the previous growing season, stored as starch in roots and stems. Research on broadleaf evergreens shows that those whole-tree starch reserves become significantly depleted during spring and summer as they are mobilized to support new root and crown growth.¹

Early Summer and a Possible Second Push

After the main spring flush slows, many laurels enter a brief plateau in June before producing a second, more modest round of growth in late June or July. This second flush is less dramatic than the spring one and not every plant produces it every year. In years with abundant rainfall and moderate temperatures, you are more likely to see it. In hot, dry summers, growth can stall instead.

This is the window where laurels fill out laterally. While spring growth tends to be vertical and leggy, summer growth is often denser and more branching, especially on hedges that were trimmed after the first flush. The plant responds to the cut by activating dormant buds along the stems, and if moisture is adequate those buds break and push short, bushy shoots.

By mid to late July in most temperate climates, above-ground shoot extension is winding down. The plant begins redirecting energy toward hardening the new growth, thickening cell walls, and restoring its depleted carbohydrate reserves. You can feel the difference: spring growth is soft and pliable, while by August the same shoots have stiffened and darkened to a deeper green.

The Mid-Summer Slowdown and Water Stress

August is when many laurel owners notice growth grinding to a halt, and sometimes the plant looks a little rough. Leaf margins may brown, older leaves may yellow and drop, and the whole hedge can seem static. This is partly a natural seasonal pause and partly a response to summer heat and dry soil.

In broadleaf evergreens, summer water stress can compound the depletion of stored energy reserves, because the plant is simultaneously trying to support crown growth and cope with reduced water availability.¹ If you are watering a laurel hedge during a hot summer, you are not being indulgent. You are helping the plant finish restocking the reserves it will need for next spring’s flush. Plants that go into autumn severely water-stressed tend to produce a weaker flush the following year.

This is also why late-summer pruning should be light or avoided entirely. Hard cutting in August forces the plant to push new soft growth just as it should be hardening off. That tender late growth is vulnerable to early frosts and fungal infections, and it draws down the very reserves the plant is trying to rebuild.

Autumn Root Growth and Leaf Drop

While the branches go quiet in September and October, the root system remains surprisingly active. Soil stays warm longer than air, and as autumn rains replenish moisture, roots take advantage of the conditions to extend into new soil. This below-ground growth is invisible to the gardener but critical for the plant’s long-term health. A laurel planted in early autumn often establishes faster than one planted in spring precisely because roots get this head start before winter arrives.

Some leaf drop in autumn is normal and does not mean the plant is sick. Broadleaf evergreens replace their leaves on a rolling cycle, and many laurel species shed a portion of their oldest leaves in late September or October as new growth from the spring and summer matures enough to take over photosynthetic duties. Cherry laurel in particular can drop enough yellow inner leaves in autumn to alarm first-time growers, but as long as the outer canopy looks healthy, this is routine turnover.

By late October in most temperate regions, root growth slows as soil temperatures drop below about 7°C. The plant is now entering its least active period, though “inactive” is relative for an evergreen.

Winter and the Evergreen Advantage

Laurels do not go dormant the way a maple or an oak does. Their leaves persist through winter and continue to photosynthesize on mild days, albeit at a fraction of the summer rate. On a sunny January afternoon with temperatures a few degrees above freezing, a laurel hedge is quietly making sugars. On a hard-frost night, photosynthesis essentially stops, but the leaves have a defense mechanism. Overwintering evergreens undergo a process called cold acclimation, where protective pigments in the leaves shift from a short-term response into a sustained state that lasts all winter. This protects the foliage from light damage during the months when cold temperatures prevent the plant from using the light energy it absorbs.²

This is why laurel leaves sometimes look duller or slightly purple-tinged in winter. The color shift reflects the sustained activation of those protective pigments. It is not a sign of nutrient deficiency or disease. Once spring temperatures return, the pigments revert to their normal cycling and the leaves green up again.

Practically, winter is a hands-off period. No pruning, no feeding. The plant is ticking over at low idle, and anything that forces it to respond, like a hard cut or a dose of nitrogen fertilizer, works against the acclimation state that keeps it healthy through cold months.

How the Timeline Shifts by Species

The seasonal pattern described above fits most common laurels, but the timing varies by species more than many gardeners realize.

• Cherry laurel (Prunus laurocerasus): The fastest grower and the one most people mean when they say “laurel hedge.” Its spring flush starts early, sometimes in March in mild climates, and it reliably produces a second flush in summer. In favorable conditions it can put on a meter of growth in a single season.
• Portugal laurel (Prunus lusitanica): Slower and more compact. Its spring flush starts a week or two later than cherry laurel, and it rarely produces a strong second flush. What it lacks in speed it makes up for in density and tolerance of poor or chalky soils.
• Bay laurel (Laurus nobilis): A Mediterranean native, bay is less cold-hardy and grows more slowly in cool climates. Its main growth period is May through July, and it can keep pushing modest new growth into early autumn in warm regions. In colder areas, growth is almost entirely confined to late spring and early summer.
• Mountain laurel (Kalmia latifolia): Not closely related to the others despite sharing a common name. This North American native is an acid-soil specialist that grows slowly. Its main flush is in late spring, and it flowers spectacularly in May or June. New vegetative growth follows flowering and is largely complete by mid-July.
• Spotted laurel (Aucuba japonica): Another unrelated plant carrying the laurel name. It is shade-tolerant and slow-growing, with its main flush in April and May. It produces red berries in winter on female plants, which is often the season when it gets the most attention.

If you are choosing a laurel for hedging and want the fastest screen, cherry laurel’s longer active growth window makes it the default choice. If you are after a culinary herb, bay laurel’s growth timing matters because the best-flavored leaves are picked after the spring flush hardens off, typically from July onward.

When to Prune Along the Growth Calendar

Timing your pruning to the growth cycle makes a real difference in how a laurel responds. The standard advice for cherry laurel hedges is two trims a year: one in late spring after the first flush finishes (late May or early June) and a second lighter trim in late summer (late August or early September) to tidy up any second-flush growth before winter. This schedule works because each trim happens at the end of a growth period, so the plant has minimal time left to respond with messy new shoots before the next slowdown.

For bay laurel, a single trim in midsummer is often enough. Bay is slow enough that one annual shaping keeps it tidy. Mountain laurel should be pruned, if at all, immediately after flowering, because it sets next year’s flower buds in summer. Pruning in autumn or winter removes those buds and costs you the following year’s display.

One thing to avoid with all laurels: using hedge trimmers on large-leaved species like cherry laurel. The blades slice through leaves and leave ragged brown edges that look unsightly for months. Secateurs or loppers, cutting individual stems rather than shearing across leaf blades, give a cleaner result. This matters less with small-leaved species like Portugal laurel, whose compact foliage hides cut marks quickly.

Feeding and Planting Windows

Because spring is when laurels draw hardest on stored reserves, feeding in late winter or very early spring gives the plant a boost right when it needs it. A balanced granular fertilizer applied in March, before the flush starts, gets incorporated into the soil and available to roots as growth ramps up. A second lighter feed in June can support the second flush if you want maximum growth from a young hedge.

Avoid feeding after mid-July. Late nitrogen encourages soft growth that will not harden before frost, and it interferes with the natural reserve-building process of late summer. This is one of the most common mistakes with laurel hedges: owners see the August slowdown, assume the plant is hungry, and fertilize. The result is a flush of frost-tender shoots that brown and die back in the first cold snap.

Planting timing follows from the growth calendar. Early autumn, from September to October, is ideal in mild climates because roots grow actively while the top of the plant is not demanding resources. Early spring, from March to April, is the second-best window. Avoid planting in midsummer when the plant would need to establish roots under heat stress, and avoid midwinter when frozen soil prevents root growth entirely. Container-grown laurels can technically be planted year-round, but they will still establish fastest in autumn or spring.

Why Laurels Sometimes Seem to Grow Year-Round

If you live in a mild, wet climate, like parts of the British Isles, coastal Portugal, or the Pacific Northwest, your laurels may seem to never really stop growing. In these regions, winter temperatures rarely drop below freezing for sustained periods, and rainfall keeps soil moisture high. Cherry laurel in particular can push sporadic new leaves even in December in such climates. This is not a full growth flush. It is opportunistic low-level activity on the mildest days, and it does not add much to the plant’s size. But it does mean the hedge never looks completely static the way it would in, say, Minnesota.

Conversely, in continental climates with cold, dry winters, even the hardiest laurels go effectively dormant from November through March. Cherry laurel is hardy to roughly -20°C, but at those temperatures it is doing nothing but surviving. The sustained protective pigment response in the leaves keeps the foliage intact, but growth is entirely suspended until spring warmth returns.² Gardeners in colder zones sometimes see winter burn on laurel leaves, where cold dry wind desiccates the foliage faster than dormant roots can replace moisture. A sheltered planting position and autumn watering help reduce that damage.

Flowering and Fruiting on Their Own Schedule

Laurel flowers sometimes catch people off guard because they do not line up neatly with the vegetative growth flush. Cherry laurel flowers in April, often before or during the very start of the spring growth flush, with upright white racemes that are strongly scented and popular with pollinators. The fruits, small cherry-like drupes, ripen from green to red to black over the summer and are ready by September. Birds eat them readily, which is how cherry laurel self-sows into woodlands and has become invasive in some regions.

Bay laurel flowers later, typically in May, with small yellow blooms that are easy to overlook among the foliage. It produces dark berries that ripen in autumn, though fruiting is inconsistent on plants grown in cooler climates because bay needs warm summers to set fruit reliably. Mountain laurel has the showiest flowers of the group, large clusters of pink or white cup-shaped blooms in late May to June that are disproportionately impressive for such a slow-growing plant.

From a practical standpoint, flowering uses energy that could go into vegetative growth. If you are growing bay laurel purely for its leaves and do not care about flowers, pinching off flower buds as they form in spring can redirect that energy into leaf production. For hedging species, flowering is brief enough that it rarely affects the plant’s growth trajectory in a meaningful way.