Why some strawberries can be harvested beyond the traditional spring season — and what that means for summer-grown strawberries.
Few things say “premium fruit” quite like a perfectly ripe strawberry. Sweet, juicy, and bursting with color, strawberries have earned their place as one of the most beloved fruits in the world. But not all strawberries are created equal, and understanding two common fruiting types can help explain why strawberry season varies.
Two commonly discussed types are June-bearing strawberries and day-neutral strawberries. So, what actually sets them apart? And why does the traditional strawberry season feel so short, while some strawberries can be harvested much later in the year?
Let’s break it down.
What Are June-Bearing Strawberries?
June-bearing strawberries are the classic type most people picture when they imagine peak strawberry season. Despite the name, they don't only fruit in June — depending on climate, variety, and growing conditions, the harvest can stretch from late spring into early summer.
June-bearing strawberries typically initiate flower buds as days shorten in late summer and fall, with temperature also playing an important role in the process. Those buds develop and eventually bloom the following spring, leading to a relatively large, concentrated crop over a short harvest window.
Because flowering in June-bearing strawberries is influenced by both day length and temperature, the exact timing varies by cultivar and growing region. Their concentrated harvest is one reason strawberries are so strongly associated with a distinct spring or early-summer season in many places.
What Are Day-Neutral Strawberries?
Day-neutral strawberries play by different rules.
Unlike June-bearing strawberries, day-neutral varieties can initiate flowers across a much wider range of day lengths. When temperatures and other growing conditions are favorable, they can continue flowering and producing fruit over an extended growing season.
“Day-neutral,” however, does not mean that growing conditions do not matter. Temperature is especially important: very hot or cold conditions can slow or temporarily interrupt flowering and fruit production. Water, sunlight, cultivar, and local growing conditions also influence the timing and size of the harvest. [1]
That ability to produce fruit over a longer period is what makes day-neutral varieties particularly useful for extending strawberry harvests beyond the traditional season.
June-Bearing vs. Day-Neutral Strawberries: The Key Difference
At the core, the difference comes down to how the plants respond to environmental conditions and the resulting fruiting pattern.
June-bearing strawberries generally produce one concentrated crop in late spring or early summer. Day-neutral strawberries are much less dependent on day length for flower initiation and can produce repeated harvests over a longer growing season when temperatures and other conditions are suitable.
| June-Bearing Strawberries | Day-Neutral Strawberries | |
| Main harvest | Late spring to early summer, depending on climate | Extended growing season |
| Fruiting pattern | One concentrated crop | Repeated fruiting when conditions allow |
| Daylight response | Flower initiation is influenced by shorter days, together with temperature | Flower initiation is much less dependent on day length |
| Common association | Traditional strawberry season | Extended-season strawberries |
Why Can You Enjoy Strawberries Beyond Spring?
Mention strawberry season and many people picture spring or early summer. But strawberries don't have to be confined to a single short harvest window.
With suitable varieties, thoughtful cultivation, and favorable growing conditions, strawberries can be harvested well beyond the traditional season. In cooler growing regions, certain varieties can continue producing through summer and into fall.
And strawberries harvested in warmer months have a charm all their own — think chilled smoothies, creamy yogurt bowls, frozen desserts, or a cold strawberry drink on a hot afternoon.
Strawberries will always be shaped by season and growing conditions. They just don't necessarily have to disappear when spring does.
Meet Natsumizuki: Ikigai Fruits’ Summer Strawberry from Hokkaido
This fall, Ikigai Fruits is bringing a strawberry grown specifically for a season when fresh Japanese strawberries are typically harder to find: Natsumizuki (夏瑞), a summer-and-fall strawberry from Hokkaido.
Natsumizuki is the trademark name for the cultivar Pechika Honoka, developed by Hob, a Hokkaido company specializing in summer strawberries. Unlike many Japanese strawberries associated with the winter-to-spring season, Natsumizuki is an everbearing variety developed for harvest during Japan’s summer and fall. Hob reports that strawberries from its contracted growers are harvested from early June through late November.
That is why we call Natsumizuki a “summer strawberry.” The name describes its growing and harvest season in Japan — not simply the month when it reaches customers in the United States. Ikigai Fruits’ current U.S. delivery schedule begins in October, during the latter part of Natsumizuki’s Japanese summer-to-fall harvest season. Hokkaido’s relatively cool summer climate plays an important role in making this unusual harvest window possible.
Working closely with growers and fruit producers across Japan, Ikigai Fruits seeks out distinctive fruit shaped by its variety, place of origin, cultivation methods, and harvest season. Natsumizuki is one example: a strawberry whose story is closely tied to Hokkaido’s climate and the effort to extend Japan’s strawberry harvest beyond its conventional season.
Stay tuned to discover what makes these strawberries special.
Frequently Asked Questions
What is the difference between June-bearing and day-neutral strawberries?
June-bearing strawberries generally initiate flower buds as days shorten, with temperature also influencing the process, and typically produce one concentrated crop in late spring or early summer. Day-neutral strawberries are much less dependent on day length for flower initiation and can produce fruit over a longer period when temperatures and other growing conditions are favorable.
Are day-neutral strawberries available in the summer?
Yes. Day-neutral varieties can produce flowers and fruit during the summer when temperatures and other growing conditions are suitable. In very hot conditions, however, flowering and fruit production may slow or temporarily stop.
Do day-neutral strawberries produce fruit all year?
Not necessarily. Day-neutral strawberries can produce fruit over an extended growing season, but production still depends on factors such as temperature, sunlight, water, cultivar, and local growing conditions.
Why are strawberries usually associated with spring?
Many commonly grown strawberry varieties are June-bearing, meaning they produce a concentrated crop in late spring or early summer. In Japan, however, commercial strawberry availability is also strongly associated with winter and spring, while summer and fall can represent an off-season for many traditional varieties. Different cultivars and production systems therefore create different ideas of “strawberry season” around the world.
Are summer strawberries different from spring strawberries?
The character of a strawberry depends on the variety, growing region, cultivation methods, weather, and harvest timing. “Summer strawberry” generally describes strawberries cultivated to produce during the warmer, off-season months rather than a single flavor or texture shared by all summer-grown varieties.
What makes Japanese strawberry varieties special?
Japan is home to many strawberry varieties developed for distinctive characteristics such as sweetness, aroma, acidity, texture, color, size, and appearance. The final eating experience also depends on where and how the fruit is grown, as well as when it is harvested. Rather than describing all Japanese strawberries in the same way, it is more useful to look at the characteristics of each individual variety and growing region.
Where are Ikigai Fruits’ summer strawberries grown?
Ikigai Fruits’ Natsumizuki strawberries are grown in Hokkaido, Japan, by contracted growers working with Hob, the company that developed the variety. Natsumizuki — the trademark name for the Pechika Honoka cultivar — was developed over approximately 20 years to take advantage of Hokkaido’s cool summer climate.
Pechika Honoka is an everbearing variety, allowing it to be cultivated during Japan’s summer-to-fall strawberry season. Hob collects strawberries from its contracted growers from early June through late November. The company also uses tissue-culture technology in the production of its strawberry seedlings.
Where can I buy Ikigai Fruits strawberries?
You can explore and purchase Ikigai Fruits strawberries through our online store. Check the product page for the latest availability and ordering information.
Discover Ikigai Fruits Strawberries
Ready to discover strawberries beyond the traditional strawberry season? Explore Natsumizuki and Ikigai Fruits’ selection of premium Japanese fruit, sourced from growers and producers across Japan.