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What are Kagoshima’s heirloom vegetables? Features, season, and ways to eat the 24 items organized by the association (Sakurajima daikon, Anno sweet potato, handama) explained

The heirloom vegetables of Kagoshima Prefecture are a group of varieties passed down in growing regions with differing terrain—from the Satsuma and Osumi Peninsulas with the volcanic soils of Sakurajima and Mount Kaimon, to island groups such as Tanegashima, Yakushima, Amami Oshima, and the Tokara Islands, to the mountainous Kirishima mountain range.The Japan Traditional Vegetable Promotion Associationorganizes Kagoshima Prefecture's 23 heirloom vegetables.

We introduce items handed down in Satsuma, Osumi, and the islands, including the Guinness World Record–certified Sakurajima daikon, Tanegashima's Anno-imo, Yakushima's kawahiko, oyakui-imo, and koki-imo, Amami's handama and furu, and the Satsuma o-naga reishi (bitter gourd).

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The definition of "heirloom vegetable" and the scope of this article

Certifying bodyMain criteria
Kyoto Prefecture "Kyoto Heirloom Vegetables"Cultivation history predating the Meiji era, covering the entire prefecture
Osaka Prefecture "Naniwa Heirloom Vegetables"Cultivated within Osaka Prefecture from roughly 100 or more years ago
Nagano Prefecture "Shinshu Heirloom Vegetable Certification System"Cultivation, food culture, and varietal traits from before the 1955–1964 period
Kagoshima Prefecture, “Heirloom Vegetables of Kagoshima”Vegetables that the prefecture selects as deeply tied to Kagoshima's environment and food culture, cultivated within the prefecture generally from before 1945 (23 items / Kagoshima Prefecture official)

In this article, we organize Kagoshima Prefecture's 23 items, as arranged by the Japan Heirloom Vegetable Promotion Association, by category, and explain 7 representative items in detail in the main text.

A list of Kagoshima's 23 heirloom vegetables

6 daikon-type items

ItemFeaturesGrowing regionSeason
Sakurajima daikonGuinness-certified, up to 31.1 kgSakurajima, Kagoshima CityLate December to February
Ara daikonRoot weight 2 to 4 kg, excellent flesh qualityNorthern Amami OshimaDecember to January
Kaimon-dake daikonUp to 20 kg, tender fleshKaimon Town, IbusukiLate December to January
Kokubu daikonDistinctive pungency and suitability for picklingHayato Town, KirishimaLate December to January
Yamagawa daikonFor local cuisineYamagawa Town, IbusukiMid-December to January
Yokogawa daikonIdeal for namasuYokogawa, KirishimaNovember to January

7 tuber and leaf-stalk items

ItemFeaturesGrowing regionSeason
Anno-imoThe representative “sweet honey potato”TanegashimaSeptember–December
Oyakui-imoA taro-type in which the mother corm grows large for eatingYakushima TownNovember–March
Kawahiko (mochi-imo)A taro-type native variety of Yakushima. Locally also called “mochi-imo”Yakushima TownNovember to mid-March
Koki-imoA Yakushima native sweet-potato type, high in sugar as a baked sweet potatoYakushima TownAugust–November
Tokara ta-imoA taro grown exclusively in paddy fieldsToshima Village (Tokara Islands)Mid-October to March
ToimogaraThe leaf stalk of the hasu-imo. Used in soups, vinegared dishes, and the likeAira and othersJune
MigashikiThe leaf stalk of taro (zuiki), with a crisp textureAira and othersJune

Eggplant, gourd, chili, and fruit vegetables

ItemFeaturesGrowing regionSeason
Ishiki naga-nasu30 to 50 cm, does not toughen even if harvested lateIshiki, Kagoshima CityJuly to mid-September
Shiro-nasuLow in astringency, can also be eaten rawAll of KagoshimaJuly to mid-September
Satsuma o-naga reishiBitter gourd, 35 to 40 cm longAll of KagoshimaJuly–September
Naga-ui / ito-uiSponge gourd, eaten in the immature stageAll of KagoshimaJuly–October
Hanaoka koshoMellow heatHanaoka, KanoyaSeptember to November
Hayato-uri (Hayato gourd)A cucurbit fruit vegetable introduced to Kagoshima in the early Taisho period. Used in pickles and stir-friesAll of KagoshimaOctober–November
Yabo suikaA native large watermelon with white to pale-yellow flesh and a crisp texture. Under good growing conditions it reaches 14 to 16 kg (association). After cultivation nearly died out in the Yabo district of the former Higashiichiki Town, seeds preserved at a seed company in Nara made a homecoming in 2004 and revived itHioki City (Yabo, former Higashiichiki Town)Early to mid-August

Leafy greens, condiments, and carrot

ItemFeaturesGrowing regionSeason
HandamaKinjiso, rich in ironAmami City and othersYear-round
FuruLeaf garlic, strongly aromaticAmami CityJanuary to March
Yoshino carrot30 to 40 cm, strongly aromaticYoshino, Kagoshima CityLate November to early January

A product catalog that shows around 100 items we handle

Agriture, flexibly handling everything from small lots to large lots

乾燥野菜
  • Available from small lots of 100 g
  • We handle heirloom vegetables from across Japan
  • Dried fruit and herbs also supported

Characteristics and preparation of 7 representative Kagoshima heirloom vegetables

Sakurajima daikon — a Guinness-certified daikon among the world's largest

SeasonLate December to February
Growing regionSakurajima, Kagoshima City
Well-suited dishesSimmered dishes, furofuki daikon, pickles, oden

Sakurajima daikon is among the world's largest daikon, cultivated on Sakurajima in Kagoshima City; in 2003 a specimen of 31.1 kg was certified by Guinness World Records as the “heaviest daikon in the world.” Sakurajima's volcanic-ash soil and warm climate grow this giant size. Its flesh is dense and sweet, and its texture can be enjoyed in simmered dishes, furofuki daikon, and pickles.

In its season of late December to February, it ships from JA farm stands on Sakurajima in Kagoshima City.

Anno-imo — Tanegashima's sweet honey potato

SeasonSeptember–December
Growing regionTanegashima
Well-suited dishesBaked sweet potato, sweet-potato confections, steamed potato, tempura

Anno-imo is a sweet potato passed down in the Anno district of Nishinoomote on Tanegashima. Its origin is said to be the cultivation in the same district, after the war (around 1947), of potato seedlings that a repatriated soldier returning from the south is said to have brought back from Sumatra. After selection and breeding at the Kumage Branch of the Kagoshima Prefectural Agricultural Experiment Station, it was registered as varieties in 1998 under the names “Anno-beni” and “Anno-kogane,” and in September 2022 it was registered under the Geographical Indication protection system as GI “Tanegashima Anno-imo” (Ministry of Agriculture, Forestry and Fisheries). Distributed nationwide as a “sweet honey potato” that overflows with honey when baked, its sticky texture and strong sweetness stand out in baked sweet potato, sweet-potato confections, and steamed potato.

In its season of September to December, it also ships outside the prefecture via farm stands on Tanegashima, hometown tax donations, and mail order.

Kaimon-dake daikon — the Satsuma Peninsula daikon up to 20 kg

SeasonLate December to January
Growing regionKaimon Town, Ibusuki
Well-suited dishesSimmered dishes, oden, pickles, grated daikon

Kaimon-dake daikon is a native daikon cultivated in Kaimon Town, Ibusuki, characterized by a large size reaching up to 20 kg and tender flesh. It grows in the volcanic-ash soil of Mount Kaimon and the warm climate of southern Satsuma.

You can enjoy the texture of the large roots in simmered dishes, oden, pickles, and grated daikon. In its season of late December to January, it ships at farm stands within Ibusuki.

Handama — Amami's kinjiso

SeasonYear-round
Growing regionAmami City and others
Well-suited dishesOhitashi, dressed dishes, tempura, stir-fries

Handama is a leafy green cultivated in the Amami region; it is a native variety of the same plant (Gynura bicolor, family Asteraceae) also called “handama” in Okinawa and “kinjiso” in Ishikawa Prefecture. Prized in Amami's diet for its distinctive appearance—purple on the underside of the leaves—and its rich iron content.

Used in ohitashi, dressed dishes, tempura, and stir-fries, its cultivation period spans a long stretch. It is distributed at farm stands within Amami City.

Satsuma o-naga reishi — a large bitter gourd of 35 to 40 cm

SeasonJuly–September
Growing regionAll of Kagoshima
Well-suited dishesGoya chanpuru, dressed dishes, tempura, stir-fries

Satsuma o-naga reishi is a large bitter gourd (goya) 35 to 40 cm long, cultivated throughout Kagoshima. Far larger than common goya (around 20 cm), it is used on the summer table as an ingredient for goya chanpuru and dressed dishes.

In its season of July to September, it is distributed at JA farm stands and supermarkets within Kagoshima Prefecture.

Ishiki naga-nasu — the 30-to-50 cm long eggplant of Ishiki, Kagoshima City

SeasonJuly to mid-September
Growing regionIshiki district, Kagoshima City
Well-suited dishesGrilled eggplant, agebitashi, dengaku, simmered dishes

Ishiki naga-nasu is a long eggplant cultivated in the Ishiki district of Kagoshima City, characterized by a large size reaching 30 to 50 cm long and a good texture that does not toughen even if harvested late.

You can enjoy its tender flesh in grilled eggplant, agebitashi, dengaku, and simmered dishes. In its season of July to mid-September, it is distributed at JA farm stands within Kagoshima City.

Oyakui-imo — Yakushima's taro in which the mother corm grows large for eating

SeasonNovember–March
Growing regionYakushima Town
Well-suited dishesSimmered dishes, dengaku, fukumeni, imoni

Oyakui-imo is a native taro variety passed down in Yakushima Town, of a type in which the mother corm, not the offsets, is grown large for eating. Its appeal is flesh that is sticky yet resists falling apart when cooked, and it is cultivated in Yakushima's warm, rainy climate and volcanic soil.

Its texture comes through in simmered dishes, dengaku, fukumeni, and imoni, and in its season of November to March it is distributed at farm stands within Yakushima.

How to buy Kagoshima's heirloom vegetables

ItemMain sourcesTiming
Sakurajima daikonJA farm stands on Sakurajima, Kagoshima CityLate December to February
Anno-imoFarm stands within Tanegashima, nationwide mail order and hometown tax donationsSeptember to December (winter to spring after curing)
Kaimon-dake daikonFarm stands in Kaimon Town, IbusukiLate December to January
HandamaFarm stands within Amami City, mail orderYear-round
Satsuma o-naga reishiJA farm stands and supermarkets within Kagoshima PrefectureJuly–September
Ishiki naga-nasuJA farm stands in Ishiki, Kagoshima CityJuly to mid-September
Oyakui-imoFarm stands in Yakushima TownNovember–March

A product catalog that shows around 100 items we handle

Agriture, flexibly handling everything from small lots to large lots

乾燥野菜
  • Available from small lots of 100 g
  • We handle heirloom vegetables from across Japan
  • Dried fruit and herbs also supported

FAQ

How many heirloom vegetables does Kagoshima have?

The heirloom vegetables of Kagoshima Prefecture organized by the Japan Heirloom Vegetable Promotion Association number 23 items. There are 23 in total: 6 daikon-type, 7 tuber and leaf-stalk, 7 eggplant/gourd/chili/fruit-vegetable, and 3 leafy-green/condiment/carrot—which also corresponds to the 23 items selected under Kagoshima Prefecture's “Heirloom Vegetables of Kagoshima.” They include a group of varieties passed down in diverse areas within and beyond the prefecture, such as the Satsuma Peninsula, the Osumi Peninsula, Tanegashima, Yakushima, Amami Oshima, and the Tokara Islands.

How large is the Sakurajima daikon?

The Sakurajima daikon is among the world's largest daikon; in 2003 a specimen of 31.1 kg was certified as a Guinness World Record. Sakurajima's volcanic-ash soil and warm climate in Kagoshima City grow this giant size. Used in simmered dishes, furofuki daikon, and pickles, its season is late December to February.

What is the difference between Anno-imo and other sweet potatoes?

Anno-imo is a sweet potato passed down since after the war (around 1947) in the Anno district of Nishinoomote on Tanegashima; it is a branded variety registered in 1998 as “Anno-beni” and “Anno-kogane” and registered as GI “Tanegashima Anno-imo” in September 2022 (Ministry of Agriculture, Forestry and Fisheries). Known nationwide as a “sweet honey potato” that overflows with honey when baked, its appeal is a sticky texture and strong sweetness. This contrasts with the fluffy texture of common sweet potatoes (such as Beniazuma and Naruto Kintoki). Harvested from September to December, it is distributed from winter to spring after curing.

Is handama the same as in Okinawa and Ishikawa?

Yes; the “handama” of Kagoshima and the Amami region, the “handama” of Okinawa, and the “kinjiso” of Ishikawa Prefecture are considered the same plant of the genus Gynura, family Asteraceae (scientific name Gynura bicolor), sharing the purple underside of the leaves and rich iron content. The name differs by growing region, and the uses—ohitashi, dressed dishes, tempura, stir-fries, and so on—are largely common.

What is the difference between Yakushima's oyakui-imo, kawahiko, and koki-imo?

All are native tubers passed down in Yakushima Town, but they differ botanically. Oyakui-imo is a native taro (family Araceae, not the yam family) in which the mother corm, not the offsets, is grown large for eating, with a season of November to March; kawahiko is a native taro also called “mochi-imo” in Yakushima, with a season of November to mid-March; and koki-imo is a Yakushima native sweet potato that becomes high in sugar as a baked sweet potato, with a season of August to November. Note that the two Araceae items (oyakui-imo and kawahiko) and koki-imo, a sweet potato of the family Convolvulaceae, differ in lineage itself.

Summary

Kagoshima's heirloom vegetables span 23 items across the mainland and islands—Kagoshima City, Sakurajima, Ibusuki, Kirishima, Kanoya, Aira, Hioki, Tanegashima, Yakushima, Amami, and the Tokara Islands. Mainland items on volcanic soil and items of the islands and mountains line up by region, including Sakurajima daikon (Guinness-certified), Anno-imo (honey potato), Kaimon-dake daikon, handama (kinjiso), Satsuma o-naga reishi, Ishiki naga-nasu, and oyakui-imo.

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    Author of this article

    小島 怜のアバター Rei Kojima Agriture CEO

    CEO of Agriture Inc. Runs a contract processing and OEM business centered on dried vegetables and dried fruit. In partnership with farmers within Kyoto Prefecture, he pursues “sustainable food distribution” through the use of non-standard vegetables and support for sixth-industrialization. Drawing on extensive hands-on experience at manufacturing sites, he provides support that walks alongside every business considering OEM—from product planning and prototyping to small-lot handling, packaging design, and sales-channel development.

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