Saitama AO Daimaru is a rare Japanese heirloom eggplant that has been grown in Saitama Prefecture since the early Meiji period. Unlike the dark purple varieties most Western gardeners know, this one produces elegant apple green fruits with a distinctive globe shape and flat bottom. The dense, creamy flesh makes it genuinely luxurious to cook with, and it reaches harvest maturity in just 70 to 80 days. Growing it demands full sun and warm temperatures (75 to 95 degrees Fahrenheit), but the reward is a culinary treasure that brings authentic Japanese flavor to your table.
Full Sun
Moderate
10-11
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High
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This apple green eggplant stands apart through its remarkable texture, described as dense and creamy, which develops into something far more refined than typical eggplant varieties. The unique coloring alone makes it a visual highlight in the garden and on the plate, with that distinctive globe shape and flat base that Japanese growers have perfected over generations. At 70 to 80 days to maturity, it reaches harvest quickly enough for shorter growing seasons, yet patient enough to develop the gourmet qualities that make it worth the wait.
Saitama AO Daimaru works beautifully in any preparation where you want the eggplant's texture to shine rather than absorb oil. Japanese cooks prize it for steaming, where the dense flesh stays creamy rather than becoming mushy. It's excellent grilled or roasted whole, halved for miso-based dishes, and when sliced, it holds its shape through simmering in broths and light sauces. The delicate flavor profile means it works particularly well in preparations where other vegetables or light seasonings can be appreciated without being overwhelmed.
No timeline data available yet for this variety.
Start seeds indoors 6 to 8 weeks before your last frost date, sowing them at a depth of 1/4 inch in warm soil maintained at 75 to 85 degrees Fahrenheit. Germination occurs in 10 to 15 days under these conditions. Keep the soil consistently moist but not waterlogged, and provide bright light once seedlings emerge. Transplant seedlings into individual pots once they develop true leaves.
Transplant seedlings outdoors only after the last frost date has passed and soil temperature has stabilized at 75 degrees Fahrenheit or warmer. Space plants 18 inches apart in full sun. Harden off seedlings gradually over 7 to 10 days by exposing them to outdoor conditions in increasing increments, as they are tender and susceptible to cold damage.
Harvest fruits when they reach full size and maintain a glossy, apple green color, typically 70 to 80 days after transplanting. Cut fruits from the plant using a sharp knife or pruners rather than pulling, as the stems are woody and pulling can damage the plant. Harvest regularly to encourage continued fruiting; leaving mature fruit on the plant signals the plant to slow production. The fruit should feel firm when pressed gently.
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“Saitama AO Daimaru carries the weight of Japanese agricultural tradition, having been cultivated continuously in Saitama Prefecture since the early Meiji period (late 1800s). This variety represents a deliberate choice by Japanese farmers to develop and maintain an eggplant that differed fundamentally from the purple types dominant elsewhere, instead selecting for the distinctive apple green color, creamy texture, and globe form that defined excellence in their regional cuisine. Its survival into the modern era marks it as a true heirloom, preserved through generations of careful seed saving and cultivation by families who understood that this particular eggplant offered something irreplaceable.”